title: Angle closure after Boston keratoprosthesis.
abstract: OBJECTIVE
  To evaluate changes in the anterior chamber angle after Boston keratoprosthesis (KPro) placement.
  
  
  METHODS
  Ten patients were serially imaged with anterior segment optical coherence tomography after Boston KPro surgery. Angles were judged to be open or closed in the horizontal axis.
  
  
  RESULTS
  Seven of 10 patients had open angles before KPro placement. Within 4 months, 4 of 7 patients developed angle closure. Contact between the iris and the backplate was seen in 3 of these patients. Two of the 4 eyes demonstrated progressive angle closure. Intraocular pressure was elevated in 3 patients postoperatively due to the obstruction of a glaucoma drainage device tube (1 eye) and angle closure (2 eyes).
  
  
  CONCLUSIONS
  After Boston KPro surgery, patients must be carefully monitored for the onset or progression of glaucoma. Progressive angle closure can occur after placement of a Boston KPro and may be seen in conjunction with irido-backplate touch.
authors.affiliation: *Department of Ophthalmology, New York Eye and Ear Infirmary †New York Medical College, New York, NY ‡Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL.
authors.forename: Joseph F
authors.initials: JF
authors.lastname: Panarelli
authors.forename: Anne
authors.initials: A
authors.lastname: Ko
authors.forename: Paul A
authors.initials: PA
authors.lastname: Sidoti
authors.forename: Julian P
authors.initials: JP
authors.lastname: Garcia
authors.forename: Michael R
authors.initials: MR
authors.lastname: Banitt
mesh_terms: D000869:Anterior Eye Segment / Q000473:pathology*; D001705:Bioprosthesis; D003316:Corneal Diseases / Q000601:surgery*; D016039:Corneal Transplantation; D005500:Follow-Up Studies; D015812:Glaucoma, Angle-Closure / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D007429:Intraocular Pressure; D011183:Postoperative Complications; D011446:Prospective Studies; D019736:Prostheses and Implants; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology