eye disorders
Blockage of Central Retinal Arteries and Branch Retinal Arteries
Symptoms
The affected eye has a sudden and severe but painless loss of vision over the entire field of vision. Sometimes only a part of the field of vision is affected. Blockage of the central retinal artery may also cause growth of abnormal blood vessels on the retina or iris. Sometimes these abnormal blood vessels bleed or cause a painful type of glaucoma (called neovascular glaucoma). In neovascular glaucoma, abnormal blood vessels that have formed in the iris close the space between the iris and the cornea, blocking the drainage of fluid from the eye and causing buildup of pressure in the eye ( Glaucoma ). 