Blindness
Blindness
Opacities and clouding of the eye's lens, known as cataracts, may form and block the passage of light through the eye. Some people are born with cataracts, but the incidence increases with age. They are not painful; in fact the only symptom is blurred, dimmed or double vision. Not all require surgery, but those large enough to cause serious visual problems require surgical removal of the lens, implantation of an intraocular lens and corrective glasses or contact lenses.
The increased lifespan of diabetics has increased the incidence of this disorder. Changes in the tiny blood vessels of the diabetic's retina can cause blindness. Abnormal blood vessels are formed, some may burst and the retina may even break loose from the back of the eye. Laser treatments to "seal" blood vessels or reattach the retina may help if undertaken early. Some diabetics, incidentally, do not experience vision loss.
Perhaps one in every seven or eight cases of blindness is due to this......
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