Pinguecula
A 36-year-old woman was concerned about the diffuse yellow pigment at the temporal aspect of the conjunctiva of her right eye. This is a pinguecula. It is considered an elastotic degeneration of the substantia propria and may be associated with exposure to ultraviolet light, dry climates, and dust.1 This disorder usually occurs in aged persons. The lesion is often located on the nasal side of the conjunctiva. When a pinguecula advances from the conjunctiva onto the cornea, it becomes a pterygium. However, not all pterygiums originate from pingueculae. Pingueculae are asymptomatic. They require treatment with a short course of topical corticosteroids only if inflamed.
1. Tasman W, Jaeger EA. The Wills Eye Hospital Atlas of Clinical Ophthalmology.2nd ed. Philadelphia: Lippincott-Raven; 2001:55.