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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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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.
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Cyanide works by making the human body unable to use oxygen.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.