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Did you know?
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.
Did you know?
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
Did you know?
Cyanide works by making the human body unable to use oxygen.
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The human body produces and destroys 15 million blood cells every second.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.