They include several days of blurred vision after each treatment and possible loss of side peripheral vision. When Should I Call the Doctor About My Vision? Solar retinopathy due to direct sunlight exposure. lei supports research to develop new therapies for diabetic retinopathy, and to compare the effectiveness of existing therapies for different patient groups. In about 10% of cases, diabetic macular oedema DBE may occur where blood vessels leak their contents into the macular region of the retina and this may cause a more rapid form of vision loss. Radiation retinopathy due to exposure to ionizing radiation. This abnormal growth is called neovascularization. This tiny area of extra-sharp vision is called the macula. Retinal Vein Occlusion generally occurs in the elderly. In untreated diabetic retinopathy, scar tissue that forms on the back of the retina as a result of a contraction of the new blood vessels can cause the retina to pull away from the back of the eye.
Diabetic macular enema DBE. Sudden, severe high blood pressure may cause swelling of the optic nerve. Sometimes these vessels swell and leak fluid or even close off completely.