Featured
At night, why does it take my eyes several minutes to get used to darkness?
At night, your eyes adjust to darkness after several minutes. Do you know why it takes that long? Take a look at how your eyes adjust to darkness.
EYE
Although small in size, the eye is an extremely complex organ that captures light and transforms it into impulses that the brain can interpret as images. Discover the different muscles, parts and conditions of the eye.
How much do you know about the human body?
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At night, why does it take my eyes several minutes to get used to darkness?At night, your eyes adjust to darkness after several minutes. Do you know why it takes that long? Take a look at how your eyes adjust to darkness. See more »
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Glaucoma OverviewFor those of us who depend so heavily on our sense of sight, the idea of losing it is scary. Even scarier? The prospect of losing it without warning due to a silent thief called glaucoma. See more »
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Refractive Vision ProblemsMillions of people have refractive vision problems -- when the eyes get blurry or can't focus on an object. Learn about four major types of refractive vision problems. See more »
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What does it mean when someone has 20/20 vision?We all know 20/20 vision is a good thing, but just what do those numbers mean? See more »
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What if I crossed my eyes for 10 minutes?"Don't cross your eyes -- they'll stick that way!" That's something most of us have heard from our mothers at one time or another. Can your eyes really get stuck? See more »
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Bifocal SetbacksWearing bifocals, or getting new bifocals, can mean a difficult transition, and those new glasses could cause aches and pains. Learn about the setbacks to consider when switching to bifocals. See more »
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Healthy Eyes
Maintaining the gift of healthy sight starts with taking care of your eyes. Learn what you can do to keep eyes healthy and lower your risk of eye problems with simple lifestyle and nutrition changes. See more »
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The Best Sunglasses for Your Face Shape
Are aviators or wayfarer sunglasses the best for your face? Whether you have a round- or square-shaped face, find the best frames for you! See more »
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