Pterygium and pinguecula
Pterygium and pinguecula are two abnormal lumps in the conjunctiva of the eye that often emerge because of excessive exposure to ultraviolet rays. That's why doctors stress the importance of protecting the eyes from the sun. Specifically, pterygium appears as fleshy tissue on the cornea, its size may vary, and accordingly the treatment can range from applying drops to surgery. Meanwhile, pinguecula springs as a yellowish bump on the white of the eye. In this case, not grow over the cornea, usually not require any specific treatment unless it affects vision, in which case it would need to be removed by surgery.