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Related Experiment Videos

Early changes in refractive error following radial keratotomy.

P J McDonnell1, D J Schanzlin

  • 1Estelle Doheny Eye Foundation, University of Southern California School of Medicine, Los Angeles.

Archives of Ophthalmology (Chicago, Ill. : 1960)
|February 1, 1988
PubMed
Summary

Radial keratotomy can cause significant myopic shifts in refractive error. Semi-pressure patching and topical steroids may help reduce refractive changes after this refractive surgery.

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Area of Science:

  • Ophthalmology
  • Refractive Surgery

Background:

  • Radial keratotomy (RK) is a surgical procedure to correct myopia.
  • Post-RK refractive error changes are a concern for patient outcomes.

Purpose of the Study:

  • To analyze early refractive error changes after radial keratotomy.
  • To evaluate the efficacy of semi-pressure patching and topical steroids in mitigating these changes.

Main Methods:

  • Retrospective analysis of 126 eyes undergoing RK.
  • Measurement of refractive error changes between two weeks and three months post-surgery.
  • Comparison of outcomes in eyes receiving standard care versus those with nocturnal semi-pressure patching and topical steroids.

Main Results:

  • A significant myopic shift was observed in most eyes within three months post-RK.

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  • The average myopic increase was 1.31 D.
  • Eyes treated with semi-pressure patching and steroids showed a reduced average change of 0.3 D.

    • Conclusions:

    • Radial keratotomy can lead to progressive myopic shifts.
    • Nocturnal semi-pressure patching combined with topical steroids appears effective in reducing refractive error fluctuations after RK, particularly for undercorrected or overcorrected eyes (<1 D).