1. An epithelial condition characterized by an abnormal, triangular growth of vascular tissue extending from the nasal edge of an eye to the cornea or beyond. 2. The growth that characterizes this condition.
Dictionary source: JM Latin-English Dictionary
English to English translation of Pterygium
A winglike triangular membrane. Although a pterygium can be anywhere (including behind the knee), it commonly refers to an winglet (of the conjunctiva) extending across the white of the eye toward the inner corner of the eye, caused environmentally by prolonged exposure of the eyes to wind and weather or familially by a single gene.
Def: Crecimiento anormal en el ojo. Ex: Chinese ophthalmological works of the time are studied here, especially ophthalmic diseases like pterygium and cataract, which often call for surgical intervention as a way of giving curative treatment.