The diagnosis of a retinal branch vein occlusion poses little difficulty to an ophthalmologist who will detect dilated blood vessels, haemorrhages, and swelling enema in the distribution of the vein. Graefes Arch Cain Exp Ophthalmol 2002;240:180-96. This can be accomplished by various means depending on the cause of the decreased flow. Moreover, pan retinal photo coagulation is not a harmless procedure; it can produce loss of peripheral visual fields in CRVO see below - Figures 16,17 and may cause defective vision in the dark. This can cause permanent and often substantial loss of vision. Ophthalmic Les. 2008. 401:26-31. Glazer-Hockstein, retinal specialists at Eye Physicians and Surgeons, P.A. in Wilmington, Delaware, for an immediate evaluation. Some of the changes to your vision may be caused by the swelling and bleeding the blood backing up causes. The results of this study further demonstrate that when these eyes were left untreated, a significant percentage will either fail to improve or will experience further loss of visual acuity. Our Helpline is your direct line to the support, advice, and products you need to face the future with confidence.
The material was 360 eyes with central retinal vein occlusion CRVO, 97 eyes with hemi-CRVO, and 264 eyes with branch retinal vein occlusion bravo; these cases were further subdivided into six groups for logical data analysis: nonischemic CRVO venous stasis retinopathy-VSR, 282 eyes, ischemic CRVO haemorrhagic retinopathy-HR, 78 eyes, hemi-VSR 66 eyes, hemi-HR 31 eyes, major bravo 191 eyes and macular bravo 73 eyes. Vasodilator medication – Drugs such as nitroglycerin, isosorbide and pentoxifylline may be given to help improve blood flow. VI from vein occlusions, ocular ischemia. McAllister and Constable 18 in their original study in eyes with nonischemic CRVO, were able to produce successful chorioretinal anastomoses in only 8 of 24 eyes 33% in 3 to 7 weeks, after 1 to 5 laser attempts. Pathophysiology edit | edit source Occlusion of the blood flow results in severe loss of vision due to oxygen starvation of the retinal tissues and eventual cell death.