A pinguecula is a yellowish patch or bump on the white of the eye. It is not a tumour, but an alteration of normal tissue resulting in a deposit of protein and fat. Unlike a pterygium, a pinguecula does not actually grow onto the cornea. A pinguecula may also be a response to chronic eye irritation or sunlight.
No treatment is necessary unless it becomes inflamed. A pingulecula does not grow onto the cornea or threaten sight. If particularly annoying, a pinguecula may on rare occasions be surgically removed, but the post-operative scar may be as cosmetically objectionable as the pinguecula itself.