Snapshot A 66-year-old man presents to his primary care physician for evaluation of an abnormal growth of the eye. He reports that his wife noticed this growth. He denies any pain, discomfort, or impairment in his visual field in the affected eye. He denies having any chemical exposure to his eyes. Medical history is unremarkable. He works as a farmer and reports spending most of his day out in the field. On physical exam, there is a wedge-shaped growth extending onto the cornea. Introduction Definition login to view 1 more bullet Epidemiology Incidence login to view 1 more bullet Risk factors login to view 1 more bullet ETIOLOGY Pathogenesis login to view 1 more bullet Presentation Symptoms login to view 2 more bullets Physical exam login to view 2 more bullets Studies Making the diagnosis login to view 1 more bullet Differential Pinguecula login to view 2 more bullets Treatment Operative login to view 3 more bullets Complications Recurrence post-excision Post-surgical complications (e.g., bleeding and infection) Prognosis May lead to visual impairment and reduced ocular motility if not treated Can lead to cosmetic concerns There is a > 90% recurrence within the first 12 months after the pterygium is excised