A pterygium lesion is an elevated superficial mass that generally forms over the white part of the eye and can extend on the corneal surface. This growth is benign and is often shaped like a wedge.
Most cases of this growth don’t cause any issues and often require no intervention. However, if the pterygium gets to the point of interfering with vision or comfort, it can be removed.
Though nobody knows the exact cause of a pterygium, some believe that prolonged exposure to ultraviolet light can be a contributor. These growths are known to be more common in people who spend more time outdoors and live in warmer climates.
If less invasive options like eye drops are not providing relief, surgery to remove the pterygium may be needed.