The cornea is the crystal center part of the eye and its structure contributes the most refractive power of the eye. The cornea is what we look through to see clearly and it’s what people look through to see what color our eyes are! A good analogy is that the cornea is like the crystal on your watch. Just like any other human tissue, problems can affect the cornea. There are congenital, hereditary and acquired disorders that can affect the cornea tissue. Please follow the link for more information on these conditions.