[Intraoperatory rupture of the vein in an arteriovenous crossing sheathotomy]. / Rotura intraoperatoria de vena en disección de cruce arteriovenoso.

CASE REPORT: We present a 43 year-old man with hypertension, diabetes and hypercholesterolemia who suffered an inferior temporal branch retinal vein occlusion in his right eye (visual acuity: counting fingers). An arteriovenous adventitial sheathotomy was made but the vein was perforated during surgery. The eye fundus and his final visual acuity improved (20/40) in spite of the complication. DISCUSSION: We comment the published experiences with this surgery and its complications.