Magnification in Indirect

NEET PG Ophthalmology
#1

Magnification in Indirect ophthalmoscopy –
a) Depends on power of lens used
b) Depends on refractive error of patient
c) Independent of refractive error of patient
d) independent of power of lens used

    1. ac
    1. a
    1. ab
    1. bc

0 voters

EXP:

  • Magnification of image in indirect ophthalmoscopy depends upon :-
  1. Dioptric power of the convex lens
  2. Position of the lens in relation to the eyeball
  3. Refractive state of the eyeball
  • About 5 times magnification is obtained with a +13 D lens. With a stronger lens, image will be smaller, but brighter and field of vision will be more.