Pinguecula and Pterygium - Eye Disorders - The Merck Manuals
https://www.merckmanuals.com/professional/eye-disorders/conjunctival-and-scleral-disorders/pinguecula-and-pterygium
WEBA pterygium is a fleshy triangular growth of bulbar conjunctiva, occurring only at the 3 and 9 o'clock meridians of either eye, usually not simultaneously. The pterygium may spread across and distort the cornea, induce astigmatism, and change the refractive power of the eye. Symptoms may include decreased vision and foreign body sensation.
DA: 65 PA: 13 MOZ Rank: 60