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Protective effect of soft contact lenses after Boston keratoprosthesis
  1. Leah L Kammerdiener1,2,
  2. Jaime Lynn Speiser3,
  3. James V Aquavella1,
  4. Mona Harissi-Dagher4,
  5. Claes H Dohlman5,
  6. James Chodosh5,
  7. Joseph B Ciolino5
  1. 1Department of Ophthalmology, Flaum Eye Institute, University of Rochester, Rochester, New York, USA
  2. 2Department of Ophthalmology, Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina, USA
  3. 3Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
  4. 4Department of Ophthalmology, Université de Montréal, Montréal, Quebec, Canada
  5. 5Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts, USA
  1. Correspondence to Dr Leah L Kammerdiener, Department of Ophthalmology, Storm Eye Institute, Medical University of South Carolina, Charleston, SC 29425, USA; lkammerdiener{at}gmail.com

Abstract

Purpose To evaluate associations between preoperative diagnosis, soft contact lens (SCL) retention and complications.

Methods A retrospective chart review was conducted of 92 adult patients (103 eyes) who received a Boston keratoprosthesis type I at the Massachusetts's Eye and Ear Infirmary or the Flaum Eye Institute. Records were reviewed for preoperative diagnosis, SCL retention and subsequent complications. Preoperative categories included 16 autoimmune (Stevens–Johnson syndrome, ocular cicatricial pemphigoid, rheumatoid arthritis and uveitis), 9 chemical injury and 67 ‘other’ (aniridia, postoperative infection, dystrophies, keratopathies) patients.

Results 50% of the lenses had been lost the first time after about a year. A subset (n=17) experienced more than 2 SCL losses per year; this group is comprised of 1 patient with autoimmune diseases, 2 patients with chemical injuries and 14 patients with ‘other’ diseases. The preoperative diagnosis was not predictive of contact lens retention. However, multivariate analysis demonstrated that the absence of a contact lens was an independent risk factor for postoperative complications, such as corneal melts with or without aqueous humour leak/extrusion and infections.

Conclusions Presence of a contact lens after Boston keratoprosthesis implantation decreases the risk of postoperative complications; this has been clinically experienced by ophthalmologists, but never before has the benefit of contact lens use in this patient population been statistically documented.

  • Prosthesis
  • Cornea
  • Treatment Surgery
  • Vision

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