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Corneal ectasia after hyperopic LASIK.

J Bradley Randleman1, Christopher S Banning, R Doyle Stulting

  • 1Department of Ophthalmology, Emory University and Emory Vision, Atlanta, Ga, USA. Jrandle@emory.edu

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|February 3, 2007
PubMed
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Corneal ectasia, a rare complication, can develop after hyperopic LASIK (laser-assisted in situ keratomileusis) even without identified risk factors. Early pellucid marginal corneal degeneration increases this risk.

Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Corneal Disease

Background:

  • Hyperopic LASIK is a common refractive surgery procedure.
  • Corneal ectasia is a progressive thinning and bulging of the cornea.
  • Identifying risk factors for post-LASIK ectasia is crucial for patient safety.

Observation:

  • Two cases of corneal ectasia following hyperopic LASIK are presented.
  • Patient 1 had preoperative signs of pellucid marginal corneal degeneration.
  • Patient 2 had no identifiable preoperative risk factors for corneal ectasia.

Findings:

  • Corneal ectasia developed in both patients after hyperopic LASIK.
  • Patient 1 developed ectasia 6 months post-surgery.
  • Patient 2 developed ectasia over 3 years post-surgery, despite normal preoperative topography.

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Implications:

  • Corneal ectasia can occur after hyperopic LASIK irrespective of preoperative risk factors.
  • Patients with pellucid marginal corneal degeneration, even with hyperopic correction, are at significant risk.
  • Enhanced screening for conditions like pellucid marginal corneal degeneration is vital before LASIK surgery.