corneal disease conjunctival pterygium A pterygium that is characterized by conjunctival degeneration, a fleshy outpouching of conjunctival growth and has_symptom fleshy bumps on the surface of the eye, foreign body sensation, decreased vision, and astigmatism. Conjunctival pterygiums are more common in people prone to ocular surface injury, such as those living in sunny, hot, and dry climates. Conjunctival pterygiums progress from pinguecula. DOID:10526 Web eye disease_ontology