branch retinal vein occlusion occurring after second dose of sinopharm covid-19 vaccine: a case report

An old-aged woman was evaluated with branch retinal vein occlusion (brvo) vision reduction in his left eye three weeks after the sinopharm coronavirus disease 2019 (covid-19) vaccination. her best-corrected visual acuity (bcva) was 1m counting finger in the left eye and 10/10 in the right eye. initial retinal findings were superior retinal hemorrhage with prominent retinal vein dilation and tortuosity in the left eye. fluorescein angiography (fa) and optical coherence tomography (oct) confirmed a brvo diagnosis. blood reports showed no abnormalities. antithrombotic treatment of 80 mg/d low-dose entrocoated asa was administered. in addition, an intravitreal aflibercept (eylea) injection, monthly and ongoing, was prescripted, which led to a decrease in macular edema, retinal hemorrhage, and height of serous retinal detachment. moreover, the bcva improved to 2/10 after a three-week follow-up.