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
The conjunctiva also lines the insides of the eyelids. The cornea is a dome-shaped structure at the front of the eye. It is transparent, allowing light to enter the eye, and together with the lens helps focus and direct light onto the retina.he conjunctiva also lines the insides of the eyelids. The cornea is a dome-shaped structure at the front of the eye. It is transparent, allowing light to enter the eye, and together with the lens helps focus and direct light onto the retina.