
The cornea provides most of the eye’s focusing power—about four-fifths of incoming light is bent here. Unlike most tissues, it is transparent and contains no blood vessels, serving as the eye’s “window.” It is also richly supplied with pain-sensitive nerves. Because of that, corneal issues typically cause eye pain, light sensitivity, and changes in tearing—either too little or too much.
A tooth implant in the cornea can help restore vision in cases where severe forms of corneal damage have resulted from a chemical burn, a fire or explosion, or an autoimmune reaction where the immune system attacks the eye. Continue reading “Amazing Cornea Facts: Tooth Implant Restores Sight”