Eighteen-year follow-up of excimer laser photorefractive keratectomy.

  title={Eighteen-year follow-up of excimer laser photorefractive keratectomy.},
  author={Zaid Shalchi and David P O'brart and Robert J. McDonald and Parul Parag Patel and Timothy J. Archer and John Marshall},
  journal={Journal of cataract and refractive surgery},
  volume={41 1},
PURPOSE To evaluate the long-term efficacy of photorefractive keratectomy (PRK). SETTING University Hospital, London, United Kingdom. DESIGN Prospective case series. METHODS One eye of patients who had PRK 18 years previously was examined. All had myopic corrections with a 6.0 mm optical zone. RESULTS Forty-six patients were examined. The mean preoperative spherical equivalent (SE) refractive error was -4.86 diopters (D) (range -2.75 to -7.375 D). The mean programmed correction was -4… CONTINUE READING
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