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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.