Ophthalmology 1mm change in the axial length of the eyeball produces a change in refractive index by: March 2005 A 1 D B 2 D C 3 D D 4 D 💡 Explanation 1mm change in the axial length of the eyeball produces a change in refractive index by: March 2005 ✓ Correct Answer: C. 3 D