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
Aqueous and Vitreous â The aqueous is located in between the cornea and the lens and is a very thin fluid. It gives the front of the eye its shape as well as nourishes the cornea and lens. The Vitreous is a thicker substance that gives the inner eye it essential shape. With age, it thins and can cause damage to the retina. Retina â The retina is the sensory tissue that lines the inner layer of the eye, and converts light rays into electrical impulses that communicate with the brain. It is made up millions of photoreceptors known as rods and cones. (For More Information, See Retina page). Structure of the eye (www.stlukeseye.com/Anatomy.asp) Vision: