Nejm 2010;363:2135
Cause:Hypertension, DM, hyperlipidemia
Pathophys:thrombosis of vein
most over 50yo
Sx:painless unless ischemic form which is often painful, unilateral vision loss, may be subtle
Si:retinal hemorrhages, optic disc edema, retinal vein edema and engorgement
Rx:laser photocoagulation, intravitreal steroid injection, anti-VEGF agent injection