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Retreatment after initial laser in situ keratomileusis.

W A Lyle1, G J Jin

  • 1Eye Institute of Utah, Salt Lake City 84107, USA.

Journal of Cataract and Refractive Surgery
|June 1, 2000
PubMed
Summary

Laser in situ keratomileusis (LASIK) retreatment effectively corrects undercorrection and regression after initial LASIK, offering safe and favorable visual outcomes. Regression typically occurs within six months but can manifest up to two years post-surgery.

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Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Corneal Surgery

Background:

  • Laser in situ keratomileusis (LASIK) is a common refractive surgery.
  • Undercorrection and postoperative regression are potential complications following LASIK.
  • Retreatment may be necessary to achieve optimal visual outcomes.

Purpose of the Study:

  • To evaluate the efficacy and safety of LASIK retreatment.
  • To analyze retreatment outcomes in patients with primary undercorrection.
  • To assess retreatment results in patients experiencing postoperative regression.

Main Methods:

  • A prospective study involving 157 eyes of 108 patients.
  • Retreatments performed using the VISX Star laser for undercorrection (27%) and regression (73%).

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  • Mean follow-up of 15 months post-initial surgery and 10 months post-retreatment.

    • Main Results:

    • Pre-retreatment spherical equivalent (SE) improved from -1.28 D to -0.23 D.
    • 97.5% of eyes achieved within +/-1.00 D of emmetropia; 81.5% within +/-0.50 D.
    • Best corrected visual acuity (BCVA) improved or remained stable in all eyes, with 1.3% experiencing a loss of ≥2 lines due to corneal irregularity.

    Conclusions:

    • LASIK retreatment is an effective and safe procedure for addressing undercorrection and regression.
    • Good visual outcomes can be anticipated following LASIK retreatment.
    • Regression can occur up to two years post-LASIK, and some patients may require multiple retreatments with promising results.