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Related Experiment Videos

Excimer laser reablation

A Loewenstein1, I Lipshitz, D Varssano

  • 1Department of Ophthalmology, Ichilov Hospital & Assutah Laser Center, Tel-Aviv, Israel.

Ophthalmic Surgery and Lasers
|April 1, 1997
PubMed
Summary
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Repeated photorefractive keratectomy (PRK) successfully treats undercorrection and haze after initial PRK. This retreatment improved visual acuity and refractive outcomes, with significant reduction in corneal haze.

Area of Science:

  • Ophthalmology
  • Corneal Surgery
  • Refractive Surgery

Background:

  • Photorefractive keratectomy (PRK) is a common refractive surgery.
  • Undercorrection, regression, and corneal haze can occur after initial PRK.
  • Retreatment may be necessary to address these complications.

Purpose of the Study:

  • To evaluate the outcomes of repeated excimer laser keratectomy after initial PRK.
  • To assess the efficacy of retreatment for refractive errors and corneal haze.

Main Methods:

  • Retrospective study of 32 patients undergoing repeated PRK.
  • Follow-up of at least 12 months.
  • Assessed refractive error (spherical equivalent), corneal haze, and visual acuity.

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Main Results:

  • Significant improvement in spherical equivalent (SE) post-retreatment.
  • 66% of eyes achieved SE within +/-1 D six months after retreatment.
  • Marked reduction in corneal haze (from 62% to 3%) and improved visual acuity (20/36).

Conclusions:

  • Repeated PRK is a viable option for managing undercorrection and regression post-PRK.
  • Retreatment effectively reduces corneal haze and improves visual outcomes.
  • Excimer laser retreatment shows potential for successful management of PRK complications.