title: Radial keratotomy associated endothelial degeneration.
abstract: OBJECTIVE
  To describe the presentation and clinical course of eyes with a history of radial keratotomy (RK) and varying degrees of endothelial degeneration.
  
  
  METHODS
  Retrospective case series were used.
  
  
  RESULTS
  Thirteen eyes (seven patients) were identified with clinical findings of significant guttata and a prior history of RK. The mean age of presentation for cornea evaluation was 54.3 years (range: 38-72 years), averaging 18.7 years (range: 11-33 years) after RK. The presentation of guttata varied in degree from moderate to severe. Best corrected visual acuity (BCVA) ranged from 20/25 to 20/80. All patients had a history of bilateral RK, except one patient who did not develop any guttata in the eye without prior RK. No patients reported a family history of Fuch's Dystrophy. One patient underwent a penetrating keratoplasty in one eye and a Descemet's stripping automated endothelial keratoplasty (DSAEK) in the other eye.
  
  
  CONCLUSIONS
  RK may induce a spectrum of endothelial degeneration. In elderly patients, the findings of guttata may signify comorbid Fuch's dystrophy in which RK incisions could potentially hasten endothelial decomposition. In these select patients with stable cornea topography and prior RK, DSAEK may successfully treat RK endothelial degeneration.
authors.affiliation: John A Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA.
authors.forename: Majid
authors.initials: M
authors.lastname: Moshirfar
authors.forename: Andrew
authors.initials: A
authors.lastname: Ollerton
authors.forename: Rodmehr T
authors.initials: RT
authors.lastname: Semnani
authors.forename: Maylon
authors.initials: M
authors.lastname: Hsu