Pterygium

Pterygium is a common and frequently-occurring disease in ophthalmology. It is generally considered to be a chronic inflammatory lesion of localized bulbar conjunctival fibrous vascular tissue caused by external stimuli. It is triangular in shape and can invade the cornea, with unilateral or bilateral involvement. Because its shape resembles an insect's wings, it is called pterygium flesh, which is called ldquo; flesh flare eyes rdquo; by Chinese medicine. It is one of the most common ophthalmic diseases in clinical practice and the oldest eye disease. Not only can it cause eye irritation and appearance defects, it can also affect vision to varying degrees. Occurs mostly in outdoor workers. May be related to long-term stimuli such as sand, smoke, sunlight, and ultraviolet rays.