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What is cataract

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A cataract is an abnormality of the eye, characterized by opacity of the lens. Call 1-800-2CHACHA for unlimited use! [ Source: http://www.chacha.com/question/what-is-cataract ]
More Answers to "What is cataract"
A cataract is a clouding or opaque area over the lens of the eye - an area that is normally transparent. As this thickening occurs, it prevents light rays from passing through the lens and focusing on the retina - the light sensitive tissue...
http://www.nchmd.org/default.aspx?id=15&ref=P00494
A cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surg...
http://ghr.nlm.nih.gov/exit?to=www.nei.nih.gov&uid=7bH4sIAAAAAAAAAEvOz0vJLMnMz4t3TIEwEnMU.Dw9FIJSi.NLi5JTi-ORefGeNRklJQVW-vrl5eV6eamZenmZGXrp-WX6GamJOSUZ-smJJYlFicklcEZ8GpAo1kssLgAAtBWIXmsAAAA_
A cataract is a clouding of the normally clear lens of the eye. The amount and pattern of cloudiness within the lens can vary.
http://www.clevelandclinic.org/eye/patient_info/cataract.htm

Related Questions Answered on Y!Answers

Cataract...?
Q: In ophthalmology, a cataract is known as the opacity of the eye lens:1. Who are the people who ever did the first cataract operation?2. How was it done?3. What is the natural phenomena?PS: people who are biased, aggressive and use foul language are jackasses. So choose what you want to be!
A: 1. Medical practitioners in Egypt and ancient Greece before the time of Christ.2. Using a needle to push the lens aside, so that the light could pass to the retina. This was called "couching".3. The clouding of the lens is due to the precipitation of the lens proteins. This may be due to heating (IR or microwave), UV damage, infection, physical trauma, and diabetes.
What is cataract and what form does the removal operation takes?
Q: If someone has been operated upon for cataract, can he see properly thereafter? Will there be a scar on the eye or around it?
A: A cataract is a clouding of the natural lens, the part of the eye responsible for focusing light and producing clear, sharp images. The lens is contained in a sealed bag or capsule. As old cells die they become trapped within the capsule. Over time, the cells accumulate causing the lens to cloud, making images look blurred or fuzzy. For most people, cataracts are a natural result of aging. In fact, they are the leading cause of visual loss among adults 55 and older. Eye injuries, certain medications, and diseases such as diabetes and alcoholism have also been known to cause cataracts. Not all cataracts impair vision or affect daily living. For those that do, common symptoms include: Cloudy, fuzzy, foggy, or filmy vision. Glare from lamps or the sun, which may be severe. Difficulty driving at night due to glare from headlights. Frequent changes in eyeglass prescription. Double vision. Second sight. Difficulty performing daily activities because of vision problems. Presently, there is no medication, eye drops, exercises or glasses to cure or prevent cataracts. Cataract surgery is the only way to remove a cataract. Cataract treatment is one of the safest and most common types of surgery. *Cataracts cannot be removed with a laser, but only through surgical incision. *In cataract surgery the cloudy lens is removed from the eye. The focusing power of the removed lens is achieved by replacing it with a permanent intraocular lens implant (IOL), which has been selected to suit the specific eye measurements of each patient. All questions for detailed information should be obtained from your doctor or ophthalmic specialist.Hope this helpsMatador 89
How many cataract operations before an ophthalmologist can be considered "experienced"?
Q: My opthamologist is a young man who has performed "only" 160 cataract operations. I am worried that that might not be sufficient experience to do an operation on my eye since I am almost 88 years old.
A: You may find the Cataract Free America "50 Tough Questions For Your Cataract Doctor" helpful.http://www.cataractfreeamerica.org/cataracts/cataract-doctor-tough-questions.htm
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