title: Seoul-type keratoprosthesis: preliminary results of the first 7 human cases.
abstract: OBJECTIVE
  To evaluate the clinical efficacy of a newly designed Seoul-type keratoprosthesis (S-KPro).
  
  
  METHODS
  The S-KPro, which consists of a polymethyl methacrylate optic, a skirt (polyurethane or polypropylene), and polypropylene haptics, was developed and implanted into 2 unsighted and 5 sighted eyes of 7 patients. One patient had a chemical burn, another had an ocular pemphigoid, and the remainder were diagnosed as having Stevens-Johnson syndrome. The preoperative visual acuities ranged from light perception to hand motions. The average follow-up time was 25.6 months.
  
  
  METHODS
  We evaluated anatomical stability, visual acuity, retinal status, and the visual field.
  
  
  RESULTS
  At the last follow-up visit, the S-KPro was well placed in 6 patients. The best-corrected visual acuities of the sighted patients ranged from 20/100 to 20/60 in the affected eye. One patient each experienced retinal detachment or endophthalmitis. Partial extrusion was found in the patient with glaucoma. A retroprosthetic membrane was detected in 1 patient and was treated with an Nd:YAG laser. No glaucomatous visual field defects were found in any of the sighted patients.
  
  
  CONCLUSIONS
  Anatomical success was achieved in 6 of 7 eyes. In 3 of the 5 sighted eyes, the S-KPro could rehabilitate corneal blindness not correctable with keratoplasty.
authors.affiliation: Department of Ophthalmology, Seoul Municipal Boramae Hospital, Korea.
authors.forename: Mee Kum
authors.initials: MK
authors.lastname: Kim
authors.forename: Jae Lim
authors.initials: JL
authors.lastname: Lee
authors.forename: Won Ryang
authors.initials: WR
authors.lastname: Wee
authors.forename: Jin Hak
authors.initials: JH
authors.lastname: Lee
mesh_terms: D000328:Adult; D001672:Biocompatible Materials; D003316:Corneal Diseases / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019904:Polymethyl Methacrylate; D011126:Polypropylenes; D011140:Polyurethanes; D011183:Postoperative Complications; D019736:Prostheses and Implants; D011474:Prosthesis Design; D019919:Prosthesis Implantation; D012029:Refraction, Ocular; D014792:Visual Acuity / Q000502:physiology; D014794:Visual Fields / Q000502:physiology
chemical_list: D001672:Biocompatible Materials; D011126:Polypropylenes; D011140:Polyurethanes; D019904:Polymethyl Methacrylate