E pithelium is the type of tissue that covers all free body surfaces. The transparency of the cornea is due to the fact that it contains hardly any cells and no blood vessels. On the other hand, it is well supplied with nerve fibers that enter on the margins of the eye and radiate toward the center. T hese 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.
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. Despite our best efforts to ensure the veracity of information published on this site, there may yet be errors or omissions. We disclaim any liability for consequential damages arising out of such unintentional errors or omissions. Readers are requested to kindly alert us of any errors, which shall speedily be attended to.