College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 55

If the aqueous humor of the eye has an index of refraction of 1.34 and the distance from the vertex of the cornea to the retina is 2.00 cm, what is the radius of curvature of the cornea for which distant objects will be focused on the retina (For simplicity, assume all refraction occurs in the aqueous humor.)