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Related Experiment Videos

Refractive keratotomy in keratoconus suspects

C B Bowman1, K P Thompson, R D Stulting

  • 1Emory Eye Center, Emory University School of Medicine, Department of Ophthalmology, Atlanta, GA, USA.

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|May 1, 1995
PubMed
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Keratoconus suspects (4.5%) in refractive surgery showed acceptable outcomes after refractive keratotomy. Further studies are needed to define corneal topography variants and refractive surgery responses.

Area of Science:

  • Ophthalmology
  • Corneal Surgery
  • Refractive Surgery

Background:

  • Videokeratography is crucial for identifying keratoconus suspects in refractive surgery candidates.
  • Assessing corneal topography is vital for patient selection in refractive surgery.

Purpose of the Study:

  • To determine the frequency of keratoconus suspects in a refractive surgery population.
  • To compare refractive keratotomy outcomes in keratoconus suspects versus patients with normal corneal topography.

Main Methods:

  • Retrospective review of 67 patients (120 eyes) undergoing refractive keratotomy.
  • Preoperative videokeratography used to measure inferior-superior (I-S) values for corneal steepening.

Main Results:

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  • 4.5% of eyes (3/120) were identified as keratoconus suspects based on I-S values.
  • All identified keratoconus suspects achieved uncorrected visual acuity of 20/30 or better postoperatively.
  • 80% of eyes with normal topography achieved 20/30 or better, and 94% achieved 20/40 or better.

    • Conclusions:

    • Keratoconus suspects may achieve acceptable refractive surgery results.
    • Further research with larger populations is needed to define corneal topography variants and refractive surgery outcomes.