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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.

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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

The visual field as seen by a person with (a) glaucoma, (b) macular degeneration, and (c) cataracts. The visual field as seen by a person with (a) glaucoma, (b) macular degeneration, and (c) cataracts.
Older adults may grieve intensely over the loss of a person or situation that has been a part of the Older adults may grieve intensely over the loss of a person or situation that has been a part of the
This graphic illustrates the original systems model of politics advanced by David Easton. Politics This graphic illustrates the original systems model of politics advanced by David Easton. Politics
Brushing off to finish-back. In a quiet voice ask the person to sit up with legs off the side of the ... Brushing off to finish-back. In a quiet voice ask the person to sit up with legs off the side of the ...
Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme
Coffee will not sober you up. An intoxicated person who drinks coffee will end up being a stimulated Coffee will not sober you up. An intoxicated person who drinks coffee will end up being a stimulated
Video: Stroke volume

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