Answer- A i.e. As early as feasibleAll diabetic (IDDM & NIDDM both) aged over 12 years and/or entering pubey should be screened (visual activity measurement and fundus examination by ophthalmoscopy)For retinopathy. and those with risk for visual loss referred to an ophthalmologist.Type I DM (IDDM) require ophthalmoscopic examination within 3 years of diagnosis and annual review. (If lt is diagnosed before the age of pubey).Type II DM (NIDDM) require ophthalmoscopic examination at the time of diagnosis (because it is usually diagnosed after the age of 12 years) and annual review.