Distant direct ophthalmoscopy is done at: (A) 100 cm, (B) 25 cm, (C) As close to the face as possible, (D) 1 m
Answer is B. Ans. (b) 25 cmDistant direct ophthalmoscopy is done from a distance of 20 - 25 cm, and the features of the red reflex are noted.Option a/d are the same (mathematical conversion), so rule them out distance for retionscopy.Option c - distance for Direct ophthalmoscopy.