Cataract
A clouding or loss of transparency of the lens in the eye as a result of tissue breakdown and protein clumping. There are many causes of cataracts, including aging, cortisone medication, trauma, diabetes, and other diseases. Cataracts affect most people who live into an old age. Symptoms include double or blurred vision and sensitivity to light and glare. A physician can diagnose cataracts by examining the eyes with a viewing instrument. Sunglasses can help to prevent cataracts.
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- Cataract surgery
Removal of the clouded (cataractous) lens in its entirety via surgery and replacement of the lens with an intraocular lens (IOL) made of plastic. A typical cataract operation takes about an hour, requires local anesthesia only, and usually does not require hospitalization.
- Cataract with poikiloderma atrophicans
Cataract with poikiloderma atrophicans: Also known as the Rothmund-Thomson syndrome, this is an hereditary disease characterized by progressive degeneration (atrophy), scarring and abnormal pigmentation of the skin together with stunting of growth, baldness, cataracts, depressed nasal bridge, and malformations of the teeth, nails and bone. Poikiloderma atrophicans with cataract (the Rothmund-Thomson syndrome) is inherited as […]
- Cataract, nuclear
Cataract, nuclear: A clouding of the lens that occurs only in the nucleus, in which case the term nuclear cataract or nuclear sclerosis is used. See: Cataract.
- Cataract, primary
Cataract, primary: A cataract that develops independently of other diseases. A primary cataract is in contrast to a secondary cataract, one that is secondary to another disease.
- Cataract, secondary
Cataract, secondary: A cataract that develops secondary to another disease or surgery. The other disease may, for example, be glaucoma or retinal detachment. A secondary cataract is in contrast to a primary cataract, one that develops independently of any other disease.