Which of the following statements is
correct?
(1) Cornea is an external, transparent and
protective proteinacious covering of the
eye-ball.
(2) Cornea consists of dense connective
tissue of elastin and can repair itself.
(3) Cornea is convex, transparent layer which
is highly vascularised.
(4) Cornea consists of dense matrix of
collagen and is the most sensitive portion
the eye.