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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?
Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.