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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?
Approximately 25% of all reported medication errors result from some kind of name confusion.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
Did you know?
More than 4.4billion prescriptions were dispensed within the United States in 2016.