<prompt> Which of the following is a cause of sudden blindness in a quiet eye with a normal media and fundus: September 2009Acute retrobulbar neuritisVitreous hemorrhageIridocyclitisAll of the above  <response>: Ans. A: Acute retrobulbar neuritis Conditions which produce visual loss with a normal fundus: Amblyopia Coical blindness Retrobulbar neuritis Cone-rod dystrophy Chiasmal tumour 