<prompt> Common cause of sudden blindness in a young diabetic female is: September 2009 2010GlaucomaVitreous defectsPapilledemaCataract  <response>: Ans. B: Vitreous defects The 3 most common causes of vitreous hemorrhage are: Proliferative diabetic retinopathy Posterior vitreous detachment PVD with or without retinal tears Ocular trauma e.g., shaken baby syndrome; together these account for 60-89 of all cases. Less common causes include branch or central retinal vein occlusion, proliferative sickle cell retinopathy, retinal microaneurysm, age-related macular degeneration, and subarachnoid hemorrhage Terson syndrome. 