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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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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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The longest a person has survived after a heart transplant is 24 years.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.