Trauma, especially to the head, and several diseases may cause Purtscher’s retinopathy Hyperviscosity-related retinopathy as seen in disorders which cause paraproteinemia Many types of retinopathy are proliferative, most often resulting from neovascularization or blood vessel overgrowth. http://dclakers.com/advisingeyesurgeon/2016/12/05/a-closer-look-at-strategies-of-cataracts/When this occurs, blood and fluid leak from the retinal blood vessels and fatty material called exudate is deposited in the retina. If you have mild or moderate non proliferative diabetic retinopathy, you may not need treatment right away. This technique is similar to ultrasound but uses light waves instead of sound waves to capture images of tissues inside the body. The poorly nourished retina then sends out some type of chemical distress signal that causes new blood vessels to bud and grow proliferate on the retinal surface. The small laser scars that result will reduce abnormal blood vessel growth and help bond the retina to the back of your eye, thus preventing retinal detachment. The macula is the middle of the retina, which lets you see details. no dataIf left untreated, these blood vessels may bleed, clouding vision or scar detaching the retina. Severe loss of vision or even blindness can result if surgery is not performed to reattach the retina. Scar tissue may grow around the abnormal blood vessels and lead to pulling on the retina, causing retinal detachment and possible permanent blindness.