title: Encysted corneal contact lens presenting as an eyelid mass.
abstract: A 57-year-old woman presented with a 10 by 10 mm movable eyelid mass which had been present for 8 months before examination by me. Diagnostic exploration of the eyelid was performed, and a cyst containing a hard corneal contact lens was discovered. Further history obtained after surgery revealed that the patient had lost her contact lens approximately 4 years prior to the surgical exploration.
mesh_terms: D000293:Adolescent; D000328:Adult; D003261:Contact Lenses / Q000009:adverse effects*; D003560:Cysts / Q000209:etiology / Q000601:surgery*; D005141:Eyelid Diseases / Q000209:etiology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged