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Related Experiment Videos

INTACS inserts for treating keratoconus: one-year results.

J Colin1, B Cochener, G Savary

  • 1Bordeaux University Hospital, Hopital Pellegrin, Bordeaux, France.

Ophthalmology
|July 27, 2001
PubMed
Summary

INTACS micro-thin inserts improved vision and reduced corneal steepening in keratoconus patients intolerant to contact lenses. This treatment offers a viable option for managing this eye condition.

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Area of Science:

  • Ophthalmology
  • Corneal Surgery
  • Vision Science

Background:

  • Keratoconus is a progressive eye condition causing corneal thinning and steepening.
  • Patients with keratoconus often become intolerant to contact lenses.
  • Effective treatment options for contact lens-intolerant keratoconus patients are limited.

Purpose of the Study:

  • To evaluate the efficacy of INTACS micro-thin prescription inserts for treating keratoconus.
  • To assess visual acuity and corneal shape changes following INTACS implantation.
  • To determine if INTACS inserts are a viable treatment for contact lens-intolerant patients.

Main Methods:

  • A prospective, nonrandomized comparative trial involving 10 keratoconus patients.
  • Patients received INTACS inserts (0.45-mm inferiorly, 0.25-mm superiorly) after corneal pachymetry and topography assessment.

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  • Preoperative and postoperative visual acuity, refraction, keratometry, and corneal topography were analyzed over 12 months.

    • Main Results:

    • No intraoperative complications were reported.
    • Significant improvements in uncorrected and best spectacle-corrected visual acuity were observed at 12 months.
    • Reduced spherical equivalent error, refractive astigmatism, and improved corneal shape (reduced cone size and height) were noted in all patients.

    Conclusions:

    • INTACS micro-thin prescription inserts appear to be a viable treatment for clear corneal keratoconus in contact lens-intolerant patients.
    • The inserts effectively reduce corneal steepening and astigmatism associated with keratoconus.
    • Visual acuity improvement was achieved in nearly all treated eyes.