Vitreous gel is a substance inside the eyeball, made up mostly of water and a small amount of collagen and hyaluronic acid. A vitreous hemorrhage occurs when blood leaks into the normally clear vitreous gel. The cause could be a rupture of any blood vessels surrounding the eye. Sometimes, certain conditions cause the development of new, abnormal blood vessels that are very fragile. The vessels may grow right into the vitreous gel.
Diabetic retinopathy develops due to blood sugar issues. It can be irreversible if not caught early, but unfortunately, may start off with no symptoms and not be noticed until symptoms appear. Abnormal blood vessels may form, which are quite fragile and bleed easily. Larger vessels can also be affected. Anyone with diabetes should make regular visits to an eye specialist to ensure diabetic retinopathy is not developing -- the condition can cause blindness, but early treatment lowers the chances of this by 95 percent.
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