Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content + Download Section PDF Listen ++ For further information, see CMDT Part 7-07: Pinguecula & Pterygium + Key Features Download Section PDF Listen +++ ++ Often bilateral Occur more frequently on the nasal side of the conjunctiva Pingueculae rarely grow but may become inflamed (pingueculitis) Pterygia become inflamed and may grow Recurrence is common and often more aggressive than the primary lesion + Clinical Findings Download Section PDF Listen +++ ++ Pinguecula A yellowish elevated conjunctival nodule in the area of the palpebral fissure Common in persons over age 35 years Pterygium A fleshy, triangular encroachment of the conjunctiva onto the cornea Usually associated with prolonged exposure to wind, sun, sand, and dust + Diagnosis Download Section PDF Listen +++ ++ Clinical + Treatment Download Section PDF Listen +++ ++ No treatment is usually required for inflammation of pinguecula or pterygium Artificial tears are often beneficial Indications for excision of pterygium Growth that threatens vision by encroaching on the visual axis Marked induced astigmatism Severe ocular irritation