Correct Option: C

The cornea represents the strongest part of the refracting power of the eye, providing about 80% of the power of the system. The index of refraction of the cornea is about 1.376. Rays pass from the cornea into the watery fluid known as the aqueous humor which has an index of refraction of about 1.336. The lens provides perhaps 20% of the refracting power of the eye with a refractive index of 1.386-1.406. the refractive Index of Vitreous Humor is 1.33.