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Radial keratotomy: a comprehensive evaluation.

A C Neumann, R H Osher, R E Fenzl

    Documenta Ophthalmologica. Advances in Ophthalmology
    |January 30, 1984
    PubMed
    Summary
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    Radial keratotomy effectively reduced myopia in 147 eyes, improving uncorrected vision to 20/35. Most patients achieved better vision, with high myopia cases showing significant improvement and high satisfaction.

    Area of Science:

    • Ophthalmology
    • Surgical Innovation
    • Refractive Surgery

    Background:

    • Myopia management remains a significant challenge in ophthalmology.
    • Radial keratotomy (RK) emerged as a surgical technique to correct refractive errors.
    • The Fyodorov method offered a standardized approach to RK.

    Purpose of the Study:

    • To prospectively investigate the efficacy and outcomes of radial keratotomy using the Fyodorov method.
    • To analyze visual acuity and refractive error changes one year post-surgery.
    • To identify factors influencing surgical success and patient satisfaction.

    Main Methods:

    • Prospective clinical investigation of 147 eyes undergoing RK for myopia reduction.
    • Analysis of preoperative and one-year postoperative visual acuity and refractive error.

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  • Evaluation of complications, endothelial cell loss, and influencing factors.

    • Main Results:

    • Mean uncorrected visual acuity improved from finger counting to 20/35.
    • Mean myopia reduction was 4.66 diopters; 80% achieved 20/40 or better vision.
    • High myopia cases (6.00-11.75 D) showed a mean reduction of 6.23 D, with 68% achieving 20/40 vision.
    • Glare and visual fluctuation were common complications; 5.2% non-progressive endothelial cell loss observed.
    • Preexisting myopia, age, surgeon experience, and incision depth impacted results.
    • Stabilization occurred by six months for low myopia and later for high myopia.

    Conclusions:

    • Radial keratotomy using the Fyodorov method significantly reduces myopia and improves uncorrected visual acuity.
    • Predictability is influenced by preoperative refractive error, patient factors, and surgical technique.
    • Despite complications like glare, patient satisfaction is high, with a high rate of fellow eye surgery uptake.