2008年11月7日星期五
Introduction to the Patent Bar Exam
To be eligible to take the exam, you must have a technical background as evidenced by your college degree or courses. There are two ways to qualify.
1. You have an engineering or hard science degree from an accredited university.
2. You have taken enough credit hours of hard science classes as shown on your transcripts.
To qualify under either scenario, you must submit your transcripts with your application to take the patent bar exam.
In the VCP-310 exam resources, VMware Certified Professional on VI3, you will cover every field and category in VMware Certification helping to ready you for your successful VMware Certification.
In the 642-642 exam resources, CCIP Quality of Service (QoS), you will cover every field and category in CCIP helping to ready you for your successful Cisco Certification.
If the USPTO determines that you have completed the necessary course requirements to take the patent bar exam, your application will be approved. Normally, this process takes between two and three weeks to receive notification, after sending your application to the USPTO.
After receiving the USPTO’s approval notice, your confirmation will have a unique ID number with which you can register to take the patent bar exam. The Patent Bar Exam is given by Prometric testing centers on a computer. With your ID number, you can register over the phone or online with Prometric and schedule your exam. You will have ninety days from the date of your application approval to take the exam. Normally, the patent bar exam is given five days a week at Prometric testing centers, but you should check with your closest testing center to verify this.
2008年10月31日星期五
Finding Your Faith in Religious Jewelry
inner faith.
Religious jewelry was often only given as a Communion, Baptism, or a gift for
Confirmation. Religious Jewelry is now worn for fashion and style, a way to proudly
display ones faith with elegance, beauty and class. Religious jewelry has indeed a
wide diverse
market in the discount tiffany industry.
Considering Religious Jewelry as a gift idea?
Religious Jewelry as a gift idea was once consisted to be nothing more than a
Rosaries or small beaded bracelets, but
current fashion trends have expanded the religious jewelry market to unique jewelry
items like bracelets, pendants, brooch pins, rings, and any other style of tiffany jewelry
that shows an individuals religious belief in thier God.
Religious Jewelry can always be given to someone to whom you wish to show your
devotion, love and unchanging faith to. It can also be a great gift idea for a relative
or a
friend as a symbol that you wish that God, and faith may be with the special person
who wears the piece of jewelry always.
Why has Religious tiffany jewellery become so significant?
Religious Jewelry as a symbol to ones faith and having that faith with you at all
times is what has made religious jewelry as significant as it is. Having a message of
God that speaks to you when a little faith is needed in ones life is what individuals
love and
cherish about their religious jewelry items.
Religious jewelry is beautiful when it is worn to inspire as well as a reminder of
one's faith in their God and recognition of one's religious beliefs. Be proud to
display your faith with your jewelry.
2008年10月27日星期一
A routing protocol specifies
There are two categories of routing protocols, namely Interior Gateway Protocol (IGP) and Exterior Gateway Protocol (EGP) 1Z0-042.
An Interior Gateway Protocol (IGP) refers to a routing protocol that exchanges routing information between gateways within a single autonomous system. The routing information is used by the Internet Protocol (IP) or other network protocols to specify how to route transmissions. Following are the Interior Gateway Protocols (IGPs)642-533:
* IS-IS
* OSPF
* IGRP
* EIGRP
* RIP (RIPv1 and RIPv2)
Intermediate System-to-Intermediate System (IS-IS) is a link-state routing protocol standardized by the ISO. It supports variable length subnet masks (VLSM), uses multicast to discover neighboring routers using hello packets, and supports authentication of routing updates 70-238.
Open Shortest Path First (OSPF) is a routing protocol that is used in large networks. Internet Engineering Task Force (IETF) designates OSPF as one of the Interior Gateway Protocols. A host uses OSPF to obtain a change in the routing table and to immediately multicast updated information to all the other hosts in the network 1Y0-259.
Interior Gateway Routing Protocol (IGRP) is a Cisco proprietary distance vector Interior Gateway Protocol (IGP). It used by Cisco routers to exchange routing data within an autonomous system (AS). This is a classful routing protocol and does not support variable length subnet masks (VLSM). IGRP supports multiple metrics for each route, including bandwidth, delay, load, MTU, and reliability.
EIGRP is a Cisco proprietary protocol. It is an enhanced version on IGRP HP0-S13. It has faster convergence due to use of triggered update and saving neighbor's routing table locally. It supports VLSM and routing summarization. As EIGRP is a distance vector protocol, it automatically summarizes routes across Class A, B and C networks. It also supports multicast and incremental updates and provides routing for three routed protocols i.e. IP, IPX, and AppleTalk.
RIPv1 was designed to fulfill dynamic routing needs of a network. It uses MAC-level broadcasts, which are not
Routing Protocols
desirable in the current scenario because all nodes must process all broadcasts. It does not support VLSM and route summarization 1Y0-731.
RIPv2 is a classless protocol. It improves upon RIPv1 with the ability to use VLSM and route summarization. It supports route authentication and multicasting of route updates. It is used in small to medium size networks. RIPv2 uses triggered updates to speed up convergence. It supports variable length subnet masks (VLSM)646-230.
Variable Length Subnet Masks (VLSMs) allow administrators to divide a given IP address space into more than one subnet. It helps in efficient use of IP addressing. A classless routing protocol is required to deploy VLSM. Classful protocols such as RIP v1 do not support VLSM 70-536.
An Autonomous system (AS) is a group of networks under a single administration and with single routing policies. Each AS is assigned a unique number in order to differentiate it from other autonomous systems. The assigned unique number can be from 1 to 65,535. The Internet Assigned Numbers Authority (IANA) is responsible for assigning these numbers. There are public and private AS numbers like private and public IP addresses 642-503.
Administrative distance defines the reliability of a routing protocol. The router uses administrative distance in order to choose the best path when there are two or more different routes on a router to the same destination using different routing protocols. Each routing protocol's administrative distance value decides which routing protocol is more reliable. The lower the administrative distance value, the more reliable the routing protocol 642-611.
2008年10月3日星期五
You can view Anaglyph 3D pictures only with 3D glasses
3D Glasses used In DVD & Blu-Ray home release of theatrical 3D films
Disney studios is releasing its first Blu-ray 3D disk August 2008, Hannah Montana & Miley Cyrus: Best of Both Worlds Concert. Disney Channel aired it originally in July of 2008, for viewing with red-cyan paper 3D glasses.eyewear frames
When it is released in blu-ray, it will most likely use similar 3D glasses. Red-cyan anaglyph 3D Glasses have greatly improved with the greater clarity of blu-ray and the increasing knowledge at Disney which you can see in their animation projects with close overlay of the 3D images. Most Disney theatrical 3D images show far less mal-registration, compared to old fashioned polarized or anaglyph technique.eyeglasses online
What makes 3D Anaglyph Glasses trick your brain into seeing in 3D?
3D glasses with the appropriate colored lenses lets you view anaglyphs because each eye sees a picture that's slightly different. For example: red-blue anaglyph 3D glasses cause the eye viewing through the red filter to to see red images as "white," and blue images as "black." (with the brain providing some adaption for color); the eye covered by the blue filter perceives the opposite effect. True white or true black areas are perceived the same by each eye. The brain notices that each eye sees a different image, assumes that this is the result of different distances, and blends them together. A normal stereograph image is created without the viewer having to cross their eyes.
3D Glasses from Rainbow Symphony
Inc.tiffany and co jewelry
2008年9月25日星期四
Lasik Vision Institute a€“ Makes You Say A Good Bye To Your Glasses!
The lasik vision centers have well qualified, skilled and veteran medical staff hailing from various corners of the country. plastic eyeglassesThey take extreme care of their patients and hold a significant accountability to impart a good vision to the patients. The best of medical technologies in the world are being used at the lasik vision institute. eyeglassesIn better words, Lasik Vision Institute utilize only FDA approved laser technique. The medicos in the institute take credit of over 500,000 successful operatives, eye glasseswhich makes a adequate proof of vastly experienced group of doctors.
Whether you require LASIK, LASEK, PRK or Custom Lasik Wave front technology, the skilled and qualified surgeons will satisfy youa€?re every prerequisite of laser vision correction. In addition to this, what makes lasik vision institute dearer to everybody is the reasonable rates. All the consultants in the institute carry out the duty of informing their patients about all the pros and cons and treat them consequently based upon on the individual case study and medical circumstance.
Everybody may be suspicious about the hidden charges after the surgery. But, here you need not to get worried about any hidden charges as everything is decided on paper in advance. The conscientious staff of lasik vision institute takes personal care of its patienta€?s pre and post operatively. However, one can not be 100% sure whether you will have an extremely normal vision; but definitely, there are always big chances that you can do very well without wearing glasses most of the times. The success of surgery depends upon numerous factors that your medical doctor will make you conscious of in advance. Realizing the whole situation, I must say, Lasik has open the ways of a new era in the healing of myopia.
Most people can get back to their work and schedule errands within a day of operation. However,eyewear the recuperation period may last for a week or more depending upon your response. Throughout this recovery period, you will find the lasik center staff always ready to help you with your doubts and qualms. Your eyes get stronger and vision clearer with each passing day during the resurgence periodcheap jewellery.
If you are looking for laser vision correction then contact, any lasik eye center and they will give you the detailed information including the anticipated cost and various payment alternatives according to your console. On an average, the surgery may require as low as $ 299 per eye. However, it depends upon any other procedure involved in the surgery too.cartier earrings Moreover, you have a preference of monthly reasonable payments as well.
Now, you know very well about lasik institute. What all you require to do is to dial their number, fix up an engagement with the doctor and just say good-bye to your glasses with assurance!
2008年9月22日星期一
Different designs of reading glasses: Use them as your choice
Reading glasses are mainly designed in two types. The most common one is known as the full frame reading glasses. They cover the whole lens and carry the readable quality from every angle. The other one is called half-eyes reading glasses. If you have come across anyone using this particular type of reading glasses, you will see him or her wearing the glasses just above the nose and when look at you from the top of the glass.
Both the reading glasses have individual facilities
Those who are extremely engaged to read out minute details and that too for long hours, it is always suggested to them to use full frame reading glasses. You can get fashionable and trendy full frame reading glasses as per your choice in different types of frames. The frames can be metallic or of colorful fiber. But here there is a suggestion you may follow for better use. Don’t try out pre-fabricated reading glasses. The design might be superb but in fittings and adjustment, you may find problems. It is always better to order for a pair of reading glasses as per the prescription and get it made for individual use.
Half-eyes reading glasses are really made with style. If you are going to use it occasionally, then this particular design is perfect to match with your attitude. This type of reading glasses comes in thin cases that can easily be placed in your wallet or purse. buy glassesEven they can be folded and kept inside pen-shaped size cases.
Wear with fashion but also for precaution
You can also order reading glasses to be worn when you walk out in the sunlight. Tiffany ringTherefore two purposes are met with a single object. Your eyes are protected from the UV rays as well as the half-eye reading glasses suffice you with better reading capacity.
You must be very careful when you opt for one such pair of reading glasses. tiffany earringsGet your eyes thoroughly checked up. Once the power is fixed, order for the glasses. The upper part of the glass will be the usual sunglass and the lower part will be made as per the prescribed powers and angles. Wear them whenever you need and look smarter than before.
2008年9月11日星期四
How To Use A Reading Glasses Eye Chart
Have you ever noticed someone at the restaurant struggling to see the menu? They pull out a pair of glasses to ease their eyes. But two seconds later, grab the candle to help them see even better. Then move their arm back and forth as an auto focuser. This person is not wearing the proper correction in their reading glasses.tiffany's co
So how do you avoid this situation? Simple, understand how readers work and what power you need to see that menu. The first thing to understand is that higher power readers work great to magnify the little print. However, the higher the power in your readers, the less range of focus you will have.
The second thing to understand is the role that lighting plays in your vision. Good lighting can mean the difference between a +1.50 and a +2.00. What does this mean for you? If you have a good lamp at your side when reading the paper, a +1.50 will allow you to scan the entire paper better. However, if your lighting is dim you may need a +2.00 reader. A little tip for all you reading glass wearers: If you carry a pair with you to go the restaurants or shopping, get a power slightly stronger than you normally wear. This will allow you to see those tiny price tags, read ingredient labels, and see that menu.tiffany's co
One other thing to understand about reading glasses is that they are completely safe for your eyes and you really cana€?t mess this up too bad. If you get the wrong power, they simply wona€?t work as well for you and your needs. But wouldna€?t it be wiser to get the right lens correction to begin with?
Reading glasses come in plus powers. They will range from +1.00 to +3.00, pronounced plus one. A +1.50 is pronounced as plus one fifty, and so on. A lower number depicts a lower the magnification and of course the higher the number, the greater the magnification.tiffany's co
The easiest way to figure the exact power you should be wearing is view a near vision eye chart. Eye charts are widely available online, one can be found at http://www.readinstyle.com this eye chart has text of a specific size. Simply hold the chart at your comfortable reading distance. Looking at the text, which is the smallest line you can see clearly? To the side of that text will be a reading glass power. That is all there is to it. That power is the power you should have in your reading correction.
2008年9月10日星期三
Advice on finding a low vision doctor in the District of Columbia
Macular degeneration occurs classic eyeglasseswhen the blood vessels around the center part of the retina become brittle and can no longer nourish the macula.bifocal eyeglasses As the condition progresses, the macula begins to atrophy, causing low vision in the central portion of the eye. prescription sunglassesThis in fact is one of the symptoms of macular degeneration that you will want to discuss with your District of Columbia low vision eye doctor. If you note increased blurriness in the center of your field of vision, it is important to consult a District of Columbia low vision eye doctor at the earliest opportunity, rimless glassesbecause the sooner the condition is diagnosed and treatment begun, the greater the chances that more of your remaining eyesight can be saved.rimless eyewear
Although there is no cure for age-related macular degeneration,tiffany and co. your District of Columbia low vision eye doctor has many different macular degeneration devices and vision aids that will be of great help in enabling you to maximize what eyesight is remaining.tiffany and co. One of the macular degeneration devices that are commonly used by a District of Columbia low vision eye doctor is bioptic glasses, tiffany jewellerywhich consist of small telescopes mounted on regular magnifying eyeglasses. By prescribing bioptic glasses,tiffany jewellery a District of Columbia low vision specialist can enable you to once again enjoy reading and crafts that require close-up vision. Some people are even able to resume driving in certain municipalities.tiffany jewelry
If able to diagnose macular degeneration in its earliest stages, Discounted Tiffanya District of Columbia low vision specialist may be able to treat the condition with diet and vitamin and mineral supplements. Leafy green vegetables high in Vitamins A, C and E are known to have strengthening properties for the tiny capillaries of the eye; Cheap Tiffany Braceletszinc and lutein supplements are also known to be beneficial.Cheap Tiffany RingsTiffany jewely
This is why, Cheap Tiffany Necklacesif you are starting to note blurriness in your central field of vision,Cheap Tiffany Earrings that you contact a District of Columbia low vision specialist right away. As is the case with many types of diseases, early detection is key to successful and effective treatmentCheap Tiffany Pendants. That is why it is in your best interest to contact or get a referral to a District of Columbia low vision specialist today.Tiffany Japan
Reading Glasses - 3 Options To Consider
You know you are still young in mind body and spirit and want to make sure the eyeglasses you choose for the occasional quick read conveys this feeling as well. Don’t despair; with the array of shapes, colors and materials available on the market today you should have no problem finding something to reflect your personal style.
First, what shape is the right shape? One general guideline makes it easy to narrow down your selection and find something that is not only fun but compliments your face shape. You never want to mirror the shape of your face in the shape of the frame that you choose. A round face wants an angular or oval shaped lens to offer contrast. Choosing a round shaped lens will only accentuate the roundness of circular shaped face and if this is not intentional it should be avoided.
To keep it simple, most faces can be categorized into one of four shapes. Round, Oval, Square, or triangle. Just look in the mirror and try to decide which of these shapes your face most resembles. Don't get too involved trying to decide your face shape, just use it as a general guideline. And don’t get offended by the mirror if you disagree with your face shape, it is just a guideline. Then, look for eyeglasses that contrast that shape.
Second, color, how does one choose? If you stick close to the rules offered by make up artists it is hard to go wrong. Warm skin tones should stick with warm hues like orange, copper or red. Cool skin tones should stick to cool hues like rose, purple or silver. Likewise complimentary colors can accentuate ones eye color, an amber eye surrounded in purple frames would be stunning.
Finally, material, what makes a good reading glass? Most any material used can make a great pair of readers. In general there are two categories, plastics and metals.
Plastics are lightweight and available in a limitless variety of colors. They are often molded in the bridge area so not great for those individuals requiring a specialized fit over the nose. Metals have a tendency to be a bit heavier but are often more durable. Metal eyeglass frames are usually equipped with nosepads that are very easy to adjust for a more comfortable fit.
Frameless options look good on most everyone and are available with both plastic or metals temples and bridges. Frameless readers are definitely the most delicate but also the most lightweight and often the most comfortable option. There are also semi-rimless lenses that have a frame that only covers a portion of the lens, usually the top or the bottom. Semi-rimless glasses are also very lightweight but offer a little more durability than a full frameless style.
Simply keeping these three considerations in mind, shape, color and material, will make your shopping process easier and help assist you in finding a pair of glasses that truly reflects who you are.
2008年9月9日星期二
Get The Most From Your Hand Held Magnifying Lens
While magnifiers function well, handheld magnifier lights are useful to project adequate light onto an object for greater clarity. In fact, with more light used, it is possible to use a lower magnification power and thus work on a wider field of vision. This occurs as the field of vision of a magnifier decreases as magnification power increases.
Handheld magnifier lights are great as they are small and portable. This means they can be taken along and used whenever needed. Apart from that, they are fitted with bulbs that project the right amounts of light with minimal shadowing. While non-portable desktop or standing magnifying lamps usually use 22 watt incandescent lamps for lighting, these are too large for their handheld cousins.
As an alternative, bright LED lights are used for these magnifiers that are usually powered by AA or AAA size batteries. In order to conserve energy, they can be turned off and on and only used to illuminate objects in low light condition, or when lower magnification power is used.
While LED handheld magnifier lights cost less than $20 each, a more expensive version – Xenon handheld magnifying glass, costs between $60 and $100. These lights are extra bright and are great when extra lighting is needed for work.
When using handheld magnifier lights, it’s best to hold the magnifier as close to your eye as possible. Then turn on the light and slowly bring the object from a distance towards your eye until it comes into focus. With this, you will be able to maximize the view and at the same time reduce image distortions.
2008年8月21日星期四
The Problem With Pure Water Distillers
First off, a pure water distiller can run you anywhere from several hundred dollars for a smaller unit to over $3,000 for an under-the-counter model. Even the $3,000 model doesn't make enough pure water for anything beyond drinking and cooking. Unfortunately, because of the level of pollution found in our water systems, you need to filter not only what you drink and cook with, but also what you bathe in.
You see, your skin can absorb more toxins while bathing than you can drinking a big glass of water. Chlorine is the chemical that's used to kill bacteria, viruses, and microorganisms in our water. Unfortunately, chlorine can form compounds that can be vaporized by hot water. These compounds are called trihalomethanes, and they're carcinogenic.
So, one problem with pure water distillers is the volume of water they can handle. Another problem is caused by this same chlorine that's already in our water. Distillers work by vaporizing the impure water and letting it condense. The idea is that the impurities are left behind, because they don't vaporize. If there are trihalomethanes in your water (and there might well be), then the distiller is going to vaporize them, just as your hot bathing water could vaporize them. Once vaporized, they travel to the "pure" side of the distiller.
For the money, you can get the better results using filters and purifiers that use technology other than distillation. For instance, ultraviolet light kills organic impurities safely. Unfortunately, it can do nothing for inorganic impurities like lead. But it's good for the organic stuff!
Reverse osmosis is another water filtering technology that is probably better than distillation. This method works by pressuring the water through a porous membrane. The pure water makes it through the membrane, while the impurities are left behind.
Perhaps the best types of filters are two-step filters that use carbon and/or ceramic filters. Other than needing to be changed every six months or so, these filters are not high maintenance. If designed correctly, this sort of water filtering device can filter out the organic impurities in one step, and then the inorganic impurities in the next step.
Not only are these alternatives better, but they're cheaper as well. You can buy a whole house, two-step filter for about $1,000. Or you can get a one faucet filter for less than $100. Either way, these filters are probably a better bet than most pure water distillers.
2008年8月7日星期四
Holiday Gift Ideas for Choosing Gifts for Everyone
Instead of personally going shopping to buy all your gifts, the internet today offers a better alternative where you can do all your shopping while sitting in the comfort of your home or office. This way you save lots of time and money; there is no need of running from store to store or from shopping aisle to shopping aisle looking for the perfect gift. Neither do you need to spend on fuel to reach these stores to do your shopping.
All you have to do is to type the names of the gifts that you need in any search engine, and you will be presented with a list of sites housing these gifts. You then have to just browse through these different sites, where you are sure to find a price that meets your ideals and budget.
Of course, if you still can't think of the perfect gift, or find that whatever you choose is above your budget, then you could consider presenting your near and dear ones with a gift basket or gift certificate. There are also many gift baskets on the internet for you to choose from. These gift baskets usually have some gift items, chocolates, cheese, and cake; in fact, there are different types of gift baskets meant for different occasions. If you want something special, you can also customize the gift basket to meet your expectations!
Tiffany jewelry and diamonds provider.Selections include silver rings, silver necklaces and the other tiffany jewelry Are these Tiffany and Company Tiffany Bracelet,Tiffany Ring realy Tiffany and Company or are they a knock off of the real one? Tiffany & Co sliver jewelry and diamonds provider.Selections include silver rings, silver necklaces and the other tiffany jewellery
2008年7月23日星期三
Contact Lense Users (about 45 %) Have Quit Wearing Them
If you’ve ever tried contact lenses, you might be reading this with glasses instead: An online reader survey of some 7,700 corrective-lens wearers, conducted last spring by the Consumer Reports National Research Center, found that 45 percent who tried contacts in the past decade have quit wearing them. And more than one-fourth of current contact users said they now wear them less than they used to.
You can boost your chances of sticking with your contacts by using them properly, which helps prevent infection as well as dryness and irritation, the two most common reasons for giving up contacts. It’s particularly important not to cut corners in cleaning and storing your lenses.
Contact users should see their eye doctor at least annually. If you often wear lenses overnight, consider semiannual checkups. In this survey, 28 percent of contact users said they hadn’t had an eye exam in the past 11 months.
2008年7月21日星期一
Contact Lens Users Increasingly Facing Potentially Blinding Eye Infections
Take the instance of Kim Tobin who never sees things in quite the same way again. Tobin's eyesight went from clear to blurry when she got infected with acanthamoeba, a parasite that lives in water. In Tobin's case, she got it when water from a hot tub splashed into her eye. Tobin, a cornea transplant patient, said."It just kind of killed my eye. Did so much damage to my eye."
Doctors said simply getting water in her eyes puts her at risk. Doctors say water contaminated with acanthamoeba can come from lakes, rivers, swimming pools, drinking water and even the shower.
Dr. Kristin Hammersmith, of Wills Eye at Jefferson Hospital, said many patients lose vision, or lose their eye. She said one should never expose eyes to water while wearing contact lens and never wash contact lens in water. Hammersmith recommended a daily throwaway contact lens over other soft contact lenses, as to avoid putting contacts back in a contaminated case or in contaminated solution.
2008年7月16日星期三
LASIK Surgery Complications; Treatable
Some of the possible complications of LASIK surgery are - dry eye, under-correction and over-correction, regression, flap complications, epithelial ingrowth.
Dry Eyes
During surgery some nerves of the cornea, able to produce tear, may dry up causing dry eyes. In one recent study, 20% of LASIK patients experienced chronic dry eye that persisted for six months or more after surgery. Though some corneal nerves regenerate over time and dry eye symptoms usually decrease within a few weeks to a few months after LASIK, some patients will have persistent dry eye problems. Symptoms of dry eye include discomfort, sensitivity to light, and blurred vision. However, it can be treated with proper medical care.
Undercorrection and overcorrection
In some LASIK patients´ eyes may respond unpredictably to laser energy or may heal in an unusual fashion, leading to such problems. Retreatment rates for undercorrection and overcorrection is not satisfying. The eyes of some LASIK patients may respond unpredictably to laser energy or may heal in an unusual fashion, leading to a significant undercorrection or overcorrection of their nearsightedness, farsightedness or astigmatism. Though this is disappointing to both the patient and the surgeon, undercorrection and overcorrection can usually be resolved with a re-treatment (enhancement).
Regression: Long-term studies with follow-up periods of 10 years or more have shown LASIK results to be very stable for most patients. However, in some cases there will be a mild loss of vision correction over time.
The first step of LASIK is creating a flap of corneal tissue. This is done with a bladed instrument called a microkeratome or with a laser. Flap complications: it includes incomplete flaps that are partial flaps, usually caused by a malfunction of the microkeratome. Buttonhole flaps: this occurs when the flap is cut too thin, creating a hole in the center of the flap. Free cap: this is the term used to describe when the hinge of the flap is cut off and nothing remains to keep the flap attached to the eye.
Such problems however can be solved by consulting the doctor in right time. Also, the new technologies play a role here in reducing complications. However it has not been quantified yet.
As a part of the treatment, the patients have to sign a consent form in which the probable dangers of the treatment are described. However, no surgery can be taken lightly, so patients are advised to discuss the doctors about the probable complications and solutions.It is better not to hope that the vision will be totally clear after the treatment. However, patients can hope to be less dependent on glasses. To conclude, one should consult the doctors before going for the surgery.
Source: LA Chronicle
2008年7月15日星期二
Jewelry Designer Trunkshows in Texas
Barneys New York, Dallas - one of the few exclusive retailers to carry Warner’s ultra high-end American masterpieces - is located at 8687 North Central Expressway, Suite 1224, Dallas, TX 75225.
About GOOD ART HLYWD
“It’s the coolest jewelry in the world, and the devil’s in the details,” says Josh Warner of his ultra high-end, in-your-face, handcrafted American masterpieces.
Originally intended to appeal to the rebellious subculture of Warner’s youth, the pieces now produced at his company GOOD ART HLYWD have become status symbols for uber-hip trendsetting celebrities who desire a “badass” edginess in contrast to the conservative luxury of Rodeo Drive.
Today the GOOD ART HLWYD line of fine jewelry is still entirely handmade in Los Angeles, with Warner overseeing every stage of production. Designs originate from his drawings (and then either wood or wax carvings) and incorporate everything from the seemingly obvious Spanish Cross to the most innovative clasps and mechanisms this side of the industrial revolution. With details both subtle and outright ingenious, the entire the line is steeped in Warner’s spare-no-expense attitude of “Do it right or don’t do it at all.”
The GOOD ART HLYWD line is available at such exclusive stores as Barneys New York and Louis Boston, and can be viewed (by appointment only) at GOOD ART HLYWD’s Hollywood showroom.
2008年7月14日星期一
Tips for Buying Cross Pendants
When deciding which cross pendants you enjoy, it important to know which style suits you best. With such a wide range to choose from, you're sure to find a necklace you love.
If you love fine jewelry, consider purchasing a gold cross pendant. Gold crosses sell well, and seem to be a favorite among many people who purchase cross pendants.
You can purchase gold crosses in white or yellow gold. Each would make a stunning addition to any jewelry collection, and are available in a wide range of prices to suit your preferences and your budget! Gold crosses are also very versatile in that they can be worn with anything! You can even customize a gold cross necklace by the type of jewels, if any, you choose.
For example, there are beautiful 14k gold cross pendants made with cultured pearls, peridot, emerald stones and a host of other precious and semi-precious gems.
There are even gorgeous diamond cross pendants for those who enjoy a little flash and can afford to spend a bit extra on an exquisite piece of jewelry. A white gold diamond cross pendant looks stunning, and can be worn with anything for an extra bit of flair and pizzazz.
Those on a budget will find that diamond and gold cross necklaces are a little more than they can afford. However, there's an easy remedy for this problem' stainless steel crosses! Stainless steel crosses are more affordable than their gold or diamond counterparts, and are still just as beautiful. The fact that they won't put a huge dent in your wallet is a definite plus.
As if these choices weren't enough, there are Celtic cross pendants for people who appreciate their Irish heritage or simply like the design of the Celtic cross. A lot of Celtic crosses are available in high quality, yet inexpensive sterling silver. However, if you prefer to spend a little extra you can purchase a beautiful 14k gold Celtic cross pendant for men or women.
Available in white or yellow gold, diamonds or stainless steel, cross pendants are a beautiful symbol of faith and a lovely addition to any jewelry collection. No matter what type of cross necklace suits you, you are sure to find an exceptional piece of jewelry you'll love to wear time and again for many years to come.
2008年7月13日星期日
Advantages and disadvantages of all FSAs
For an example of potential tax savings associated with a flexible spending account, a person in the 28% Federal marginal tax bracket and an example 4% state tax (along with FICA taxes of typically 7.65%, for a total tax of almost 40%), could deduct $2,000 and put that money into an FSA for health care. This would result in almost $800 in tax savings.
If this example person had not utilized the FSA and instead itemized their deductions, they likely would not have been able to deduct this $2,000 expense because it would not have met the 7.5% of Adjusted Gross Income threshold needed to be able to deduct it on their federal tax return. Even if the expenses had met the 7.5% threshold, only the part in excess of 7.5% would count as an itemized deduction; and itemized deductions are only beneficial if they exceed the standard deduction, which is hard to meet unless you have home mortgage interest or large charitable contributions. Finally, expenses for over-the-counter drugs cannot be deducted or counted towards the 7.5% threshold, but they can be paid for by the FSA.
One major drawback is that the money must be spent within the "plan year" as defined by the cafeteria plan (commonly the calendar year), and any money that is left unspent at the end of the plan year is forfeited; this is commonly known as the "use it or lose it" rule. In 2005, the Internal Revenue Service authorized an optional 2½ month grace period that employers can use in their plans, allowing use of the funds for 2½ months after the end of the plan year.
Also, the annual contribution amount must remain the same throughout the year unless certain qualifying events occur, such as birth of a child or death of a spouse.
* Methods of withdrawal from FSAs
In recent years, the FSA debit card was developed to eliminate "double-dipping" by allowing employees to access the FSA directly, as well as to simplify the substantiation requirement which required labor-intensive claims processing; the debit card also enhances the effect of "pre-funding" medical FSAs. However, the substantiation requirement itself did not go away, and has even been expanded on by the IRS for the debit-card environment; therefore, withdrawal issues still remain for FSAs.
2008年7月10日星期四
Eye-Friendly Vitamins
Because oxidation by free radicals appears to cause a wide variety of diseases, researchers are focusing on the possible protective role of antioxidant vitamins and other micronutrients. Antioxidants are radical-scavenging agents that destroy free radicals and protect the body from harmful oxidative processes.
Examples of antioxidants include:
* Vitamin C
* Vitamin E
* Coenzyme Q
* Beta-carotene
* Carotenoids
* Alpha-lipoic acid
* Zinc
2008年7月9日星期三
The Missing Ingredient Most "Experts" Never Tell You About
At any given moment, 35% of Americans are attempting to lose weight with only 5% achieving and maintaining their weight-related goal. It's become clear that excess body fat is a risk factor in cardiovascular disease, hypertension, diabetes and some cancers. In fact, it's estimated that over 300,000 deaths each year are linked to obesity. Obesity can also take an emotional toll, leading to self-hatred, a poor self-image, and depression.
UK Eye Operation Patients in HIV & Hepatitis Alert
The eye patients seem to have a tough time as they are suffering from the fear of a deadly disease. One of the patients involved said: "I am devastated. I went into hospital for a minor routine operation and now I am living in fear of a deadly disease."
Health experts, on the other hand assure that the risk is law and that it is only a routine checkup. They have also set up an emergency helpline for patients to call if they have concerns. It can be added that six operations were done on June 11. All of them are informed. A registrar has been suspended so far.
The hospital authority believe at this stage that the lack of cleaning was an isolated incident but they will try to establish whether there is a problem with the system.
The eye hospital helpline will be open from 9am to 5pm today and over the weekend - 0161 276 5621
2008年7月7日星期一
How to Protect Your Eye: 10-Point Eye Health Plan
1. Quit smoking. If you smoke, you're much more likely to develop age-related macular degeneration, or AMD, than nonsmokers. AMD is the most common cause of blindness in those over 65. And while there are some ways to slow its progression, there is no cure.
2. Wear sunglasses and a wide-brimmed hat when you're in the sun. These two simple steps can reduce your exposure to eye-damaging UV rays up to 18-fold! And, if you wear contacts, ask your eye care specialist about contact lenses with UV protection.
3. Watch your weight. What's weight got to do with your eyes? A lot. Being overweight is a major risk factor for developing Type 2 diabetes. And diabetic retinopathy is the leading cause of blindness in those under 65. Not only that, but the Nurses' Health Study from Harvard Medical School found women with a body mass index of 30 or more (considered obese) were 36 percent more likely to develop cataracts, possibly because of some relation to high blood glucose levels.
4. Take fish oil supplements daily, or eat fish two or three times a week. There's some evidence that the omega-3 fatty acids found in fish and other foods may reduce your risk of AMD. Conversely, limit the amount of vegetable oil in your diet; there's some evidence it can increase your risk.
5. Eat three or more servings of fruit a day. In one study, women who did this reduced their risk of AMD by 36 percent compared to those who ate less than 1.5 servings.
6. Eat your spinach. What Popeye didn't know was that spinach is a rich source of lutein and zeaxanthin, powerful antioxidants that can reduce the risk of certain eye diseases, like AMD. Other good sources include any kind of leafy green vegetable such as collards and kale, as well as eggs and orange-colored fruits.
7. See your eye care professional for a full vision examination at least once every two years. Go more often if you have diabetes or any other eye-related condition.
8. Get a 30-minute walk in every day. There's some evidence that regular exercise can reduce the intraocular pressure in people with glaucoma. In one study, glaucoma patients who walked briskly four times per week for 40 minutes lowered the pressure within their eyes enough so they could stop taking their glaucoma medication.
9. Change your eye makeup every three to six months. That means new mascara, liner and powder. The makeup becomes contaminated with bacteria from your lashes and lids and can infect your eye.
10. Don't fall asleep in your daily-wear contact lenses. In fact, don't ever wear them longer than they're designed to be worn. If you want contacts that you can wear overnight, talk to your eye care professional about whether they are appropriate for you.
2008年7月6日星期日
You Can Put Your Eye Out That Way
Fireworks drives mothers crazy, and I wish I had a nickel for every time I heard my mother warn me, "You can put your eye out that way." I think this was the standard warning for just about anything I did, be it riding a bicycle, playing baseball, swimming, running, or breathing. It is the first cardinal rule each mother must learn in order to bear children. I wasn't alone either, all of my friends' mothers admonished them with this same expression regularly. So much so, that we thought our mothers had formed a conspiracy or some secret society for the sole purpose of maintaining our eyesight.
The power of mothers is rather interesting. Years ago, Jay Leno commented that mothers had the uncanny ability to sniff out just about anything, even better than a bloodhound, such as your secret copy of Playboy you kept stashed away in your bedroom. Back before the Iraq war started, he said we should not have wasted time sending in a team of UN delegates to look for weapons of mass destruction since they never found anything. Instead, they should have sent in a team of mothers who would have pulled Saddam Hussein out by the ear and cleaned up the situation right away. It would have probably saved us all a lot of grief.
Mothers are full of little axioms they use to keep us in line, but I have to think, "You can put your eye out that way," has to be their favorite with "Stop it or you'll go blind" coming in a close second.
2008年7月3日星期四
What causes diabetic retinopathy?
The diagnosis of diabetes is made based on a person's fasting plasma glucose (FPG) levels, (commonly referred to as the fasting blood sugar). An FPG level of 126 mg/dL or higher indicates the presence of diabetes mellitus.
Diabetic retinopathy is a complication of diabetes in which the tiny blood vessels in the retina are damaged by the disease. Damage to the retinal blood vessels can cause a number of problems. In some cases, the damaged blood vessels leak fluid and lipids under the macula, the most sensitive part of the retina that allows us to see details. The fluid causes the macula to swell, blurring vision. In other cases, the retinal blood vessels can become blocked, causing portions of the retina to cease functioning because of lack of oxygen and nutrients.
In its advanced stage, diabetic retinopathy is characterized by the growth of fragile blood vessels along the retina and into the clear, gel-like vitreous that fills the inside of the eye. These tiny blood vessels can break open and bleed, causing vision to be obscured and permanent damage to the retina.
Health Care Costs Rising
For the most part, there is little employers can do to control what is driving health care costs out of their reach. Health benefits companies can and do negotiate discounts, and while those help, the underlying costs continue to skyrocket. The increases created by these cost drivers flow through the health benefits companies and eventually trickle down to employers in the form of higher health insurance premiums.
In this soft economy, declining revenue is putting a squeeze on company expenses. It is likely that you will experience a 15 percent to 20 percent increase in your group health insurance when a renewal form lands on your desk.
Can you raise the cost of your company's product or service as quickly as your health insurance premiums are increasing?
Probably not. However, there are steps you can take to gain some control over your health care costs.
Finding a solution
Employers can exercise some control over their costs by finding a health benefits company that provides the "best" value for their company's premium dollars. The way in which you "shop" a health plan can impact the price. I'll use an analogy. Your travel agent has a great deal for you - air, car, hotel and meals included. You tell your agent to book it.
Coincidently, your neighbors just booked that same trip for $1,000 less through their travel agent. One agent shopped for the best price, the other agent arranged the trip through his or her vendor of choice. Whether it's a family vacation, buying a car or choosing a health benefits plan, how you shop can impact your cost. Make sure your insurance agent doesn't "arrange" your health plan for you. How many providers are enough? The more participating providers a health plan has, the more you're likely to pay in premiums. If you are considering a health plan that doesn't include a few desired physicians, request that the carrier add them to its network.
Physicians participate in many different health plans and are usually willing to participate in one more. Don't get caught in the trap of paying 10 percent to 15 percent more for your health insurance premiums because one or two doctors are notparticipating in the plan. It's reasonable that an employee can find another physician out of the thousands on the plan.
The power of marketing
Living in the United States affords us exceptional opportunities and choices. Along with that privilege comes a barrage of communications designed to influence our decision-making. What we read in the papers, see on television, hear on the radio, see flashed across a billboard, get stuffed in our mailboxes or pops up on the Internet is designed to predispose us to a company or its product.
Marketing can be an effective tool, and depending on how much is spent, can be quite influential. What marketing cannot do, however, no matter how much is spent, is replace what it takes to come up with an affordable health benefits solution that works for you. Be sure to look for a health benefits company that is flexible, listens and is willing to roll up its sleeves to provide you with a package of health benefits that you can afford.
2008年7月1日星期二
Do I Really Need a Nanny Cam
In regards to childcare, it is an unfortunate and very sad truth that parents cannot judge a book by its cover anymore when it comes to finding someone to look after their little ones. Now days, asking a few simple questions and scanning the references of the grandmother down the street is no longer safe. Some parents will conduct a reference check, but even this cannot signify whether or not someone is fit enough to take care of your children.
Naturally, scanning references is a must when looking for an individual to take on the responsibility of guiding and aiding your child when you are absent. However, is this really adequate? Even the babysitter that a neighbor or relative has used in the past does not mean they are the perfect one for the job. How could you ever tell if something transpired in between the time they looked over other children? Sometimes, your neighbor may have never known what was going on and were unaware that minor indiscretions could snowball into unforgettable life lessons.
You're not even protected if you are going through an agency that initiates background checks on applicants, as you still have to take a cautious stance when evaluating potential caregivers. Countless times, an individual appears nice in front of parents (even impressing their employers from the very start), but this demeanor can turn into something much different as time goes on.
Some people believe that devices like Nanny Cams invade the privacy of others, and maybe you think so too. But, you really need to analyze the person looking after your child when you are away. A stranger has been left in charge of your little one and that certainly calls for the right to judge their actions when you are not on the premises of your own home.
During a trial run (when you are at home), or when an employee is first hired no one gives a second thought to closely watching the nanny. Many people feel that it is a good thing to observe how this stranger will handle confrontational circumstances and solve problems in regards to your child. How is this any different than placing a Nanny Cam within the home to keep an eye out for your children? Under both circumstances, an employee is observed on how they can stick to the rules you have established for your household.
Whether or not you decide to install a Nanny Cam is really up to you. To make sure you dont step on any toes, you may tell the nanny about the extra security you have set up in the home. Bottom line the safety of your child is something you can never underestimate.
2008年6月30日星期一
Hernia Natural Remedies - Some great secrets
A hernia occurs when one part of the body protrudes through an opening into another part. A hiatal hernia forms at the opening in your diaphragm where your food pipe (esophagus) joins your stomach. Part of the stomach pushes through this opening causing a hiatal hernia. Typically there is no problem but this is not the case if there is a larger opening. Usually the result can be consistent heartburn, chest pain or acid reflux.
Most people will seek medical help to only discover that simple lifestyle changes (typically diet) can create the cure. Some most seek surgical treatment to treat their hernia. Most will visit the doctor regularly to keep an eye on their reflux and hernia problem.
But why give half of your pay check to the oil companies and the other half to the medical industry. Have you considered how simple remedies could cure your reflux problem and save you hundreds to sometimes thousands of dollars?
A Simple Remedy Cures Reflux
The year was 1976 and my dad, Bob Barton, suffered from everything you are dealing with! Hiatus hernias, acid reflux, bile reflux, heartburn-you name and he had it! After a failed stomach surgery, my dad spent most of the next year throwing up multiple times per day. The doctors mistakenly connected the bile duct to his stomach instead of his esophagus.
Doing his own research, my dad discovered that he was the perfect candidate for esophageal cancer until a miracle happened...
My dad discovered his first hiatal hernia natural remedy...
Hiatal Hernia Natural Treatment
If you have suffered from hiatal hernias, you know that they can strike at anytime and anywhere. In fact, my dad didn't make it through a whole night sleep for a whole year until one night he did!
That morning, Bob back-tracked his previous nights routine and remembered he ate a red apple right before he fell asleep. Could an apple be a simple remedy? After experimenting for the next week, my dad finally discovered his first natural treatment for acid reflux... an apple!
Will an apple work for you? It could but I tell you this story because there are numerous proven and effective cures for whatever reflux problem you are dealing with! You don't have to completely change your life, take drugs or have surgery to cure your disease. It might be a simple apple slice! It could be you need to start eating smaller sized meals. But whatever, the case you can naturally cure your hiatal hernia and acid reflux!
Cure Yourself Today... Guaranteed!
97 out of 100 people are satisfied with our Acid Reflux Remedy Report! That is why we can offer a 6 month, 100% guarantee on our Hiatal Hernia Natural Remedies. If you are interested in the most affordable, simplest, most effective and step by step natural remedy, please visit our website today!
With a team of researchers and a natural health medical doctor, you will not find a better solution for your reflux problem. Be part of the thousands who are choosing natural health remedies to cure their disease... and this treatment is guaranteed!
With 22 years of natural health experience, Joe Barton and Barton Publishing offer the only 100% guaranteed, step by step, researched-based Hiatal Hernia Natural Remedies Report. View our report in minutes,
Bausch & Lomb Facing US. Federal Lawsuit Over ReNu Contact Lens Solution
A widely used Bausch & Lomb contact lens solution was pulled from major US retailers' shelves on Thursday at the urging of the company, as a lawsuit was filed charging that it failed to disclose the product's link to serious eye infections among users in Asia.
Parker and Waichman, a high-profile New York law firm that has successfully sued several drug companies, said it had been retained by a 53-year-old man who claims to have suffered serious damage to his sight.
The law firm has set up a Web site, www.renulawsuit.com, inviting others to report any infections they have suffered after using the Bausch solution — ReNu with MoistureLoc — with a view to suing the company.
US health authorities are looking into 109 cases in 17 states of Fusarium keratitis, a rare fungal infection that can cause permanent vision loss if untreated.
People in 26 of those cases said they used ReNu products or generic versions made by Bausch & Lomb. Most of the patients reported using ReNu with MoistureLoc manufactured at the company's US factory, it said.
Bausch & Lomb said in a statement it had inspected its plants and didn't find any link to the infections.
2008年6月26日星期四
WOMEN’S BEAUTY HABITS CAUSES EYE INFECTION
Research by the College of Optometrists has revealed that women’s example habits are swing their eye health at risk.
Despite recommendations that receptor make-up should be tangled absent after sextet months, digit in quaternary women continues to ingest bacteria-ridden products that are over quaternary eld old.
A lodge of those surveyed confessed to distribution receptor make-up with friends and family, modify though digit in 10 admitted to ofttimes pain from conditions much as conjunctivitis, said the College.
Welsh women were the poorest culprits. A ordinal admitted to owning receptor make-up that was over quaternary eld older patch women in their New 30s and primeval 40s had the oldest make-up bags digit in fivesome admitted to using make-up that was over fivesome eld old.
Dr Susan Blakeney, optometric authority to the College, said: ‘Mascara crapper be a nurture connector for bacteria, so it’s not astonishing we’ve institute nearly half of women undergo from itchy, diluted and flushed eyes.’
5 US Eye Surgery Clinics Declare Bankruptcy
All these filings come on the heels of Comerica Bank's lawsuit against Luna Health Management, the umbrella organization, for nonpayment of loans of about $10 million.
The attorneys say that the individual filings were made to protect each company from creditors attempting to collect on the overall debt of the parent company. However, it is unclear how much Luna owes its 50-plus creditors, but it is estimated that the individual entities could owe between $1 million and $10 million each.
To conclude, Dr. Yaldo and his attorneys were not available to comment.
2008年5月23日星期五
The eye and vision errors
(See the animation of the LASIK procedure and what should I expect before, during, and after surgery.)
Other types of refractive surgery
Radial Keratotomy or RK and Photorefractive Keratectomy or PRK are other refractive surgeries used to reshape the cornea. In RK, a very sharp knife is used to cut slits in the cornea changing its shape. PRK was the first surgical procedure developed to reshape the cornea, by sculpting, using a laser. Later, LASIK was developed. The same type of laser is used for LASIK and PRK. Often the exact same laser is used for the two types of surgery. The major difference between the two surgeries is the way that the stroma, the middle layer of the cornea, is exposed before it is vaporized with the laser. In PRK, the top layer of the cornea, called the epithelium, is scraped away to expose the stromal layer underneath. In LASIK, a flap is cut in the stromal layer and the flap is folded back.
Another type of refractive surgery is thermokeratoplasty in which heat is used to reshape the cornea. The source of the heat can be a laser, but it is a different kind of laser than is used for LASIK and PRK. Other refractive devices include corneal ring segments that are inserted into the stroma and special contact lenses that temporarily reshape the cornea (orthokeratology).
What the FDA regulates
In the United States, the Food and Drug Administration (FDA) regulates the sale of medical devices such as the lasers used for LASIK. Before a medical device can be legally sold in the U.S., the person or company that wants to sell the device must seek approval from the FDA. To gain approval, they must present evidence that the device is reasonably safe and effective for a particular use, the "indication." Once the FDA has approved a medical device, a doctor may decide to use that device for other indications if the doctor feels it is in the best interest of a patient. The use of an approved device for other than its FDA-approved indication is called "off-label use." The FDA does not regulate off-label use or the practice of medicine.
The FDA does not have the authority to:
* Regulate a doctor's practice. In other words, FDA does not tell doctors what to do when running their business or what they can or cannot tell their patients.
* Set the amount a doctor can charge for LASIK eye surgery.
* "Insist" the patient information booklet from the laser manufacturer be provided to the potential patient.
* Make recommendations for individual doctors, clinics, or eye centers. FDA does not maintain nor have access to any such list of doctors performing LASIK eye surgery.
* Conduct or provide a rating system on any medical device it regulates.
The first refractive laser systems approved by FDA were excimer lasers for use in PRK to treat myopia and later to treat astigmatism. However, doctors began using these lasers for LASIK (not just PRK), and to treat other refractive errors (not just myopia). Over the last several years, LASIK has become the main surgery doctors use to treat myopia in the United States. More recently, some laser manufacturers have gained FDA approval for laser systems for LASIK to treat myopia, hyperopia and astigmatism and for PRK to treat hyperopia and astigmatism.
Who Should Not Wear Contact Lenses?
* frequent eye infections
* severe allergies
* dry eye
* a work environment that is very dusty or dirty
* inability to handle and care for the lenses properly
Most people who need vision correction can wear contact lenses. If you think they might be for you, talk to your ophthalmologist.
2008年5月16日星期五
Tips To Prevent Eye Infection
However they assure the problem do not stay for long. As a suggestion to the affected people, doctors say the infected eyes should be washed with a warm solution of salt water and cotton wool, and one should remember to wipe the eyes from the bridge of the nose to the outer corner of the eye, and not the other way around. Doctors also suggest to use disposable paper handkerchiefs to wipe the eyes.
The tips from the doctors came as a response to the increasing number of eye infection cases in the country. Health Education director Dr Amal Al Jowder, says they receive many such cases these days. As suggestion to infected one, she said any antibiotic eye drops or creams, which are left over after the infection has cleared up, should be disposed off properly. Dr Al Jowder further said viral conjunctivitis is usually associated with the common cold and can spread rapidly between people. She also informs viral conjunctivitis, if not taken care of immediately, can affect the cornea, giving rise to a condition known as keratitis, and it can persist for several weeks. To conclude, she stressed the necessity to consult doctors for appropriate use of eye drop and to avoid any further problems.
Cataracts to be Treated Very Carefully
A cataract is a clouding of the lens of the eye. To fully understand cataracts, it is important to understand the eye's anatomy.
The eye has several major structures: The outermost structure is the cornea, which is like the crystal on a watch. It is clear and protects the inner structures of the eye.
The iris, which is behind the cornea, is the colored part of the eye, and it regulates the amount of light getting into the eye. Just behind the iris is the lens. This is like the lens on a camera, helping to focus the light entering the eye onto the retina.
The retina lines the inside of the eye like film in a camera.
For a person to see well, all of these structures must be healthy.
Symptoms :
The symptoms of cataracts include blurry vision, difficulty seeing well enough to read and drive, seeing a great deal of glare and halos.
An ophthalmologist can diagnose cataracts during an eye examination.
Factors that increase a person's risk for developing cataracts include :
Age, a family history, smoking, diabetes mellitus, injury to the eye, chronic steroid use, radiation therapy near the eye and certain eye diseases.
Lens Implant :
One way to understand exactly what cataracts are is to compare the lens of the eye to a camera lens. If a camera lens were dirty or hazy, it would not take a clear a picture. The camera repair shop would remove the lens and put a new one in its place. This is similar to how cataracts are repaired. The eye's lens is surgically removed and replaced with a new, clear lens, called a lens implant.
Cataract Surgery :
In the early stages of cataract development, vision may not suffer significantly and cataract surgery is not necessary. Often as cataracts develop, changing the person's glasses prescription is all that is needed for good vision.
Cataract surgery is indicated only when the lens clouds so much that a person has difficulty reading or driving.
If you are told that you need cataract surgery but your vision is fine, be a little cautious and, perhaps, seek a second opinion.
Additionally, there is no such thing as emergency or urgent cataract surgery, so if a doctor tells you that you need surgery at once, you may want to get a second opinion, as well.
Surgery is the treatment for cataracts when they become significant. Maximizing glasses can help in the early stages; however, the use of vitamin and nutritional supplements and "cataract eye drops" has not been thoroughly studied, and none of those treatments seem to help very much.
The surgery has come a long way from the days when a patient was hospitalized for as long as two weeks. Today, it is performed on an outpatient basis, in an ambulatory surgery center. Preparing for the surgery takes most of the time. The patient receives multiple sets of eye drops, the eye is cleansed and the patient is given an IV.
The surgery is done while the patient is awake, but he or she may be mildly sedated with what is known as "twilight anesthesia." There should be no pain, and the operation takes about ten minutes. Shortly after the operation, the patient is able to go home.
2008年5月15日星期四
chind eye safety
Be aware of potentially dangerous situations at home and in school. Insist that children use protective eyewear when participating in sports or other hazardous activities.
Provide adequate supervision and instruction when your children handle potentially dangerous items, such as pencils, scissors, forks and penknives.
Be aware that even common household items such as paper clips, bungee cords, wire coat hangers, rubber bands and fishhooks can cause serious eye injury.
Avoid projectile toys such as darts, bows and arrows, and missile-firing toys.
Do not allow your children to play with non-powder rifles, pellet guns or BB guns. They are extremely dangerous and have been reclassified as firearms and removed from toy departments.
Keep all chemicals and sprays, such as sink cleaners or oven cleaners, out of reach of small children.
10 Most Essential Advices Your Eye Doctor Won’t Tell You
Many optometrists (who provide primary eye care) and ophthalmologists (M.D.s who can perform surgery) are adapting shrewder business tactics to keep costs down and patient traffic brisk. For instance: Walk into any eye doctor's office and you're likely to see the trademark pyramid of letters that's at the heart of every eye exam. But some doctors use the eye chart as the main — or worse, only — component of an eye exam. Everyone raises their hand. But vision is more than reading the 20/20 line. It shouldn't be confused with healthy eyes. A full checkup should include a glaucoma test, a check for near vision (in which you look at a target within reading distance) and dilation of the pupil, so that the doctor can look at the back of the eye to detect cataracts or age-related diseases.
2. "Glasses are my cash cow…"
Since optometrists and ophthalmologists rarely hand over eyeglass prescriptions without prompting, most people don't know that federal regulation requires eye doctors to release them so that patients can comparison-shop for glasses. And why would they? In order to offset the high overhead of managing a practice, doctors and optical retailers may jack up the prices of glasses they sell from 50% to 80%, estimates Harold Koller, an ophthalmologist in Meadowbrook, Pa. "Some of my friends say the annual profit of having a dispenser in their office is between $25,000 and $50,000.
3. "…and contact-lens discounters are my enemy."
Contact lenses are another area where you can save a lot of money, given the chance. Mail-order distributors, discount chains and online retailers offer discounts of about 20%. And while some doctors will hand over the prescription if you ask, many don't have to: There is no federal law requiring doctors to release contact-lens prescriptions.
In this case, the concern isn't completely about profits. Contact lenses can be more problematic — poorly fitting or irritating — for patients than glasses; once a doctor hands over that paper, he loses not only a potential sale, but also control, says Peter Ferguson, a spokesman for the New York State Board for Optometry. "What if something goes wrong? Could this somehow be turned around [to blame the doctor] if the contacts are defective?"
4. "Your kid may not even need glasses."
In school yards across the country, "four eyes" is no longer an insult. Glasses are hot, and eye doctors are ready to cash in on the trend. According to Koller, outgoing chairman of the American Academy of Pediatrics' section on ophthalmology, children are more likely than adults to want glasses they don't need because "the people they idolize often wear glasses." (Blame that Potter kid.) But kids' glasses can run upwards of $300.
5. "I blur the truth about laser surgery."
Lasik — the procedure that uses a laser to correct vision by reshaping the cornea — is all the rage with patients and ophthalmologists alike, and it's easy to see why. In the 15 minutes it takes your doctor to zap a laser in both of your eyes, he earns enough to buy a ticket to Honolulu. According to John Pinto, president of an ophthalmic management-consulting firm in San Diego, the typical Lasik practice earns a 30% margin on a procedure that costs the consumer, on average, $1,200 per eye. Furthermore, he says, in any given market of 1 million people, there will typically be about five doctors dividing up an annual $8 million pie.
6. "I learned Lasik in four days."
Is four days enough time to learn how to operate on a patient's eyes? At least one Lasik course director thinks so. The following advertisement was found on EyeWorld.org, an online publication for ophthalmologists: "SUMMER SPECIAL!! Obtain Lasik skills in a four-day, complete training course and avoid the awful 'learning curve.'" Gabriel Child, director of the course in question, The Real Lasik Course, defends his program by saying that he has found no significant difference in complications between the procedures performed by newbies and those done by the teaching ophthalmologists.
7. "Surgery's wrong for you? Don't expect me to stop you."
To Erik Petersen, a 25-year-old artist from Prescott, Ariz., laser surgery seemed like the perfect solution: He had never liked glasses, and his persistent dry eyes made it hard to wear contacts. Surgery, however, did little to fix his vision. As the doctor worked on his left eye, Petersen felt a sharp pain "that freaked me out" so much that the doctor couldn't operate on the other eye. It was a blessing in disguise. With his left eye, he now sees massive halos over objects, and every morning it "feels like it's glued shut." And since his vision in each eye is now so different, contacts are his only option. Other patients who should think twice about Lasik: anyone who's had a herpes infection, a lazy eye, or severe myopia or astigmatism.
8. "Sterile equipment? Nope. But hey, we washed it."
Peter Brett, a 42-year-old oncologist in California, was horrified back in 2001 when he read an article from the San Francisco Chronicle about the eye center where he and his wife had both had laser surgery; supposedly, instead of sterilizing the surgical microkeratome blades, the clinic rinsed and reused them. Brett was so concerned that he and his wife were tested for Hepatitis B and C, as well as HIV. (All tests were negative.) In a settlement to an investigation brought by the Medical Board of California, the doctors in question admitted that the protocol was to rinse and reuse a blade on up to four eyes; the board concluded that the doctors departed from the standard of care and placed them on probation.
9. "Open your eyes and I'll be gone."
Ever heard of "co-management"? It's a controversial trend in eye care in which an eye surgeon can share postoperative checkups with an optometrist — who, in turn, gets a cut of the surgery fee. This arrangement sometimes makes sense for patients, especially those who live in rural areas and have had surgery far from home.
But it can also be disastrous, since the risk of complications — bleeding, infection or retinal detachment — are much greater in the first 10 days after surgery, says Alan Mendelsohn, president of Florida's Broward County Medical Association. "There's no other specialty in medicine," he says, "where a surgeon doesn't see his patients postoperatively."
10. "You're a guinea pig."
Eye care is one of the most rapidly advancing areas of science, and the benefits to patients can be life-changing. In fact, it's quite easy to find an eye doctor conducting a clinical trial of some new, experimental treatment. Devices that aren't approved by the FDA for any use, however, require informed consent from all patients. Unfortunately, when it comes to fully understanding the risks, patients are often in the dark.
Eye diseases-Cataracts
A cataract is a clouding of the normally clear lens of the eye. It can be compared to a window that is frosted or yellowed.
are you at risk
The most common type of cataract is related to aging of the eye. By age 80, more than half of all Americans either have a cataract or have had cataract surgery (per NEI). All persons 65 and over should be evaluated for cataracts through a comprehensive eye exam every one to two years.
Age is the most common risk factor. You may be at a higher risk of developing cataracts if you:
* Smoke
* Use steroid medications
* Suffered an eye injury
* Have diabetes
* Have had prolonged exposure to sunlight
* Are obese
* Are an alcoholic
* Have a family history of cataracts
If you have any of these risk factors, you should schedule an appointment with your ophthalmologists for an exam.
Cataracts are a common cause of decreased vision, particularly for seniors, but they are treatable. Your ophthalmologist can tell you whether cataract or some other problem is the cause of your vision loss and can help you decide if cataract surgery is appropriate for you.
LASIK eye surgery
Refractec Inc. is studying whether conductive keratoplasty, a radio wave treatment for presbyopia, can be used on people who have had Lasik so people never have to wear contacts or glasses.
A preliminary study presented last month at the annual meeting of the American Academy of Ophthalmology in Chicago showed no safety problems and satisfactory outcomes for near and far vision.
"There were no patients who were dissatisfied. There was a significant improvement in near vision, and their distance vision was unaffected," said Dr. Daniel S. Durrie, lead investigator of the study and an ophthalmologist in Kansas City.
Source: The Detroit News
Conductive keratoplasty is a very simple procedure that doesn't cut or remove anything unlike LASIK.
2008年4月21日星期一
what is dry-eye
The eye bathes itself in tears to stay moist. Some people don't produce enough tears for healthy eyes. This is called dry eye.
What You Need To Do:
Check the store for eyedrops called "artificial tears." If you try these and your eyes are still scratchy or irritated, contact your ophthalmologist (Eye M.D.).
Why It’s Important:
Moist eyes are essential to comfort and health. Also, dry eyes may mean other problems.
corneal
The cornea is the clear front window of the eye. A corneal transplant replaces a damaged cornea with a donor cornea.
What You Can Expect:
This is often an outpatient surgery. The ophthalmologist (Eye M.D.) carefully removes the damaged or diseased cornea. Then the clear donor cornea is sewn into place.
Who Is a Good Candidate:
A corneal transplant may help if the cornea is deeply scarred or swollen and other treatments don't work.
chind eye safety
Be aware of potentially dangerous situations at home and in school. Insist that children use protective eyewear when participating in sports or other hazardous activities.
Provide adequate supervision and instruction when your children handle potentially dangerous items, such as pencils, scissors, forks and penknives.
Be aware that even common household items such as paper clips, bungee cords, wire coat hangers, rubber bands and fishhooks can cause serious eye injury.
Avoid projectile toys such as darts, bows and arrows, and missile-firing toys.
Do not allow your children to play with non-powder rifles, pellet guns or BB guns. They are extremely dangerous and have been reclassified as firearms and removed from toy departments.
Keep all chemicals and sprays, such as sink cleaners or oven cleaners, out of reach of small children.