Full Cornea Description
[Continued from above] . . . fibers that enter on the margins of the eye and radiate toward the center. These fibers are associated with numerous pain receptors that have a very low threshold. Cold receptors are also abundant in the cornea, but heat and touch receptors seem to be lacking. Along its circumference, the cornea is continuous with sclera, the white portion of the eye. The sclera makes up the back five-sixths of the outer layer. It provides protection and serves as an attachment for the extrinsic muscles of the eye.