When light enters the human eye, it first reaches ___ , then ___ and finally it reaches the ___ .
cornea, crystalline lens, retina
When light enters the human eye, it first reaches the cornea, then the crystalline lens and finally it reaches the retina. Cornea is the transparent projected front part of eye ball. Crystalline lens merely provides the finer adjustment of the focal length required to focus objects at a different distance on the retina.