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Four incision radial keratotomy.

A V Spigelman1, P A Williams, B D Nichols

  • 1Department of Ophthalmology, University of Minnesota, Minneapolis 55455.

Journal of Cataract and Refractive Surgery
|March 1, 1988
PubMed
Summary
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Four-incision radial keratotomy offers a safe and effective surgical option for myopia correction. This procedure demonstrates high visual acuity and refractive accuracy, with reduced risks compared to traditional methods.

Area of Science:

  • Ophthalmology
  • Refractive Surgery

Background:

  • Radial keratotomy (RK) is a surgical procedure to correct myopia.
  • Evolving RK techniques aim to improve safety and efficacy.

Purpose of the Study:

  • To evaluate the outcomes of a modified four-incision radial keratotomy (RK) procedure.
  • To assess the safety and refractive predictability of this RK technique.

Main Methods:

  • A prospective study involving 55 eyes of 31 patients undergoing four-incision RK.
  • Follow-up ranged from one to 18 months, with data analyzed for visual acuity and refractive error.

Main Results:

  • In low myopia, 93% achieved 20/40 or better vision, with 90% within +/- 1 diopter of emmetropia.
  • In moderate myopia, 84% achieved 20/40 or better vision, with 92% within +/- 1 diopter of emmetropia.

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  • No patients experienced overcorrection greater than 1 diopter.

    • Conclusions:

    • Four-incision RK is a safe procedure with a low risk of complications.
    • The technique provides good visual outcomes and refractive predictability for low to moderate myopia.