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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.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.
On average, the stomach produces 2 L of hydrochloric acid per day.