Some birthmarks are from extra color (pigment) in the skin. Other birthmarks are blood vessels that are bunched together or don't grow normally. It's not clear why some children have birthmarks and others don't.
a thickening of the cornea may indicate swelling swelling usually occurs from damage to the back the layer of the cornea associated with aging trauma or disease of the eye the swelling can be observed for progression or medically treated with topical hyper osmotic agents
Corneal Transplants. T he cornea is the clear tissue covering the front of your eye. Like the crystal on your watch, your cornea serves as a protective window that allows light to enter your eye and come to focus on your retina.The cornea must remain clear for you to have good vision.orneal Transplants. T he cornea is the clear tissue covering the front of your eye. Like the crystal on your watch, your cornea serves as a protective window that allows light to enter your eye and come to focus on your retina. The cornea must remain clear for you to have good vision.