What is a cataract?
A cataract is a cloudy or opaque area in the normally transparent
lens of the eye. As the opacity thickens, it prevents light
rays from passing through the lens and focusing on the retina,
the light sensitive tissue lining the back of the eye. Early
lens changes or opacities may not disturb vision. But as the
lens continues to change, several specific symptoms including
blurred vision; sensitivity to light and glare; increased nearsightedness;
or distorted images in either eye, may develop. |
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