A cataract is simply an opacity that forms in the crystalline lens of the eye. When you are born, the crystalline lens is supposed to be clear and flexible. This lens is really the fine focusing mechanism of the eye and as it ages it becomes stiffer and it changes to a yellow color. Sometimes also opacities appear on the surface of the lens. As light enters the eye, this yellowing distorts the images and the opacities produce glare. This glare may acceptable to some and intolerable to others. When you are ready to have surgery, it will bother you enough that you will be the one to know when surgery is needed. Cataract surgery is one the surgeries most performed today, but still is a surgery that has dangers and even the possibility of complications.
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