<prompt> A young adult male presented with sudden painless loss of vision. He recovered spontaneously within 3 months Most likely cause of his blindness is -Central serous retinopathyMacular holeMyopic crescentVitreous haemorrhage  <response>: Central serous retinopathy- spontaneous serous detachment of neurosensory retina in the macular region, with or without retinal pigment epithelium detachment. Risk factors - young adult male, type A personality, emotional stress, steroid intake, HTN, pregnancy. Sudden onset of painless loss of vision associated with metamorphopsia. Spontaneous resolution occurs in 80 to 90 cases. Vision returns to normal or near normal with in 3 to 6 months. Ref khurana page no.288 