Central retinal vein occlusion after prolonged vomiting and repeated valsalva maneuvers associated with gastroenteritis and dehydration.

A 44-year-old man presented with central retinal vein occlusion (CRVO) in his right eye after prolonged vomiting and repeated Valsalva maneuvers associated with gastroenteritis and dehydration. He had no other pertinent medical history, and a subsequent systemic and hematologic evaluation was within normal limits. At initial diagnosis, his visual acuity was 20/70 due to diffuse cystoid macular edema (CME) and nonischemic CRVO. After six monthly intravitreal bevacizumab injections, his vision improved to 20/20 and the CME greatly improved. An episode of prolonged vomiting and repeated Valsalva maneuvers may be a potential risk factor for CRVO in younger patients.