Most important factor determining convergence of light rays on retina is –
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- Physical state of vitreous
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- Diopter power of lens
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- Curvature of cornea
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- Length of eyeball
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EXP:
- It has already been explained that most important refractive structure of eye is cornea with a diopteric power of 44. The diopteric power of cornea is dependent on two factors :-
i) Directly related to refractive index of cornea,
ii) Inversely related to radius of curvature of cornea
Diopteric power of cornea = Refractive index of cornea - Refractive index of air / Radius of curvature of cornea