Authors have experienced a case of unilateral blindness which occurred after general anesthesia. A 17 year sold male patient underwent right CC, hemilaminectomy and traumatic pseudomeningocele aspiration under Halothane general anesthesia in prone position on December 17th, 1987. On regaining conciousness, he complained of loss of vision. At initial examination, the affected eye was blind and the opposite eye was normal except loss of indirect light reflex. There was complete drooping of eyelid and loss of ocular movements. The right pupil was markedly dilated and direct light relfex was abscent. Examination of the retina revealed milky edema and cherry-red spot at the macula. There was a permanent loss of vision on the affected eye.