| cataract |
A clouding of the normally clear lens restricts the amount of light entering the eye, thus impairing vision.
출처: www.istavision.com/conditions/conditions_glossary....
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| cataract |
A condition in the eye's lens causing it to become cloudy with a loss of vision.
출처: www.mebtc.org/research3c.htm
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| cataract |
The most frequent cause of preventable blindness in the world, a cataract is a clouding of the lens of the eye, which is normally transparent. Last year more than 1.3 million cataract operations were performed in the US
출처: www.gdabvi.org/eye_health/glossary_of_common_eye_p...
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| cataract |
A clouding of the eye's naturally clear lens. Most cataracts appear with advancing age. Scientists are unsure what causes cataract. The most important factor is increasing age, but there are additional factors, including smoking, diabetes, and excessive exposure to sunlight. Cataract is the leading cause of blindness in the world, and affects nearly 20.5 million Americans age 40 and older. By age 80, more than half of all Americans develop cataract.
출처: www.nceyebank.org/newscenter/nceb_glossary.htm
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