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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 term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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Cyanide works by making the human body unable to use oxygen.