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Removal of the corneal epithelium by photorefractive keratectomy Kenji Yoshida 1 , Yutaka Tazawa 2 1Department of Ophthalmology, Iwate Medical University School of Medicine pp.939-942
Published Date 1997/5/15
DOI https://doi.org/10.11477/mf.1410908776
  • Abstract
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We reviewed 48 myopic eyes treated by photorefractive keratectomy. The corneal epithelium was removed manually in 23 eyes and by additional excimer laser in 25 eyes. Both groups showed similar effects on refraction at 1, 3 and 6 months after treatment, except eyes with myopia greater than -6D which showed a significant shift to hypermetropia at 1 month after treatment. The incidence of subepithelial haze greater than Grade 0.5 was 70%, 83% and 74% at 1, 3, 6 months respectively in manually treated group. It was 44%, 40% and 20% at the same periods in laser-treated group. The difference in two groups was significant. The findings show that both methods were effective for removing the corneal epithelium prior to PRK and that laser-manual debridement was superior in preventing postoperative corneal haze.


Copyright © 1997, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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