If the axial length of the eyeball is changed by limn then the power changes by:: (A) 1 dioptre, (B) 2 D, (C) 3 D, (D) 4 D
Answer is C. C i.e. 3 Dioptres A decrease in 1 mm in curvature of cornea leads to hypermetropia of 6D while 1 mm decrease in length leads to hypermetropia of 3D.Q