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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
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The FDA recognizes 118 routes of administration.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.