title: An eyelid mass caused by a migrated hard contact lens.
abstract: OBJECTIVE
  To describe a mass caused by a hard contact lens in the upper eyelid.
  
  
  METHODS
  We present a case of a 77-year-old man who complained of a mass in his right upper eyelid. He had previously undergone cataract surgery in the right eye at age 60 and then became a hard contact lens wearer. He underwent horizontal wedge-shaped excision of the tarsus at age 73.
  
  
  RESULTS
  The mass in the right upper eyelid was excised. During the surgery, a hard contact lens was found embedded in the mass near the excision site of the tarsus.
  
  
  CONCLUSIONS
  Hard contact lens migration through the wedge-shaped excision site of the tarsus into the upper eyelid, as seen in our patient, may be rare.
authors.affiliation: Department of Ophthalmology, Toyama Medical and Pharmaceutical University, Toyama, Japan. ophthal@ms.toyama-mpu.ac.jp
authors.forename: Yoriko
authors.initials: Y
authors.lastname: Hayasaka
authors.forename: Seiji
authors.initials: S
authors.lastname: Hayasaka
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Nagaki
authors.forename: Yoshimi
authors.initials: Y
authors.lastname: Endo
mesh_terms: D000368:Aged; D003261:Contact Lenses / Q000009:adverse effects*; D005129:Eye Foreign Bodies / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D005141:Eyelid Diseases / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed