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Unilateral Post-LASIK Ectasia and Contralateral Spontaneous Ectasia.

Vincent Qin, Alain Saad, Damien Gatinel

    Journal of Refractive Surgery (Thorofare, N.J. : 1995)
    |February 10, 2016
    PubMed
    Summary

    Laser-assisted in situ keratomileusis (LASIK) surgery may accelerate corneal ectasia in susceptible eyes. This case shows LASIK-induced ectasia in one eye and spontaneous ectasia in the other.

    Area of Science:

    • Ophthalmology
    • Corneal Surgery
    • Refractive Surgery

    Background:

    • Corneal ectasia is a progressive thinning and bulging of the cornea.
    • Laser-assisted in situ keratomileusis (LASIK) is a common refractive surgery procedure.
    • Iatrogenic corneal ectasia following LASIK is a known but rare complication.

    Observation:

    • A case report detailing a patient who developed unilateral post-LASIK corneal ectasia.
    • The contralateral, unoperated eye later exhibited spontaneous signs of ectatic evolution.
    • Preoperative and postoperative measurements, including topography and pachymetry, were used for assessment.

    Findings:

    • The operated eye showed signs of ectasia, including inferior steepening and thinning, six months post-LASIK.
    • Five years later, the unoperated eye also developed increased inferior steepening and corneal thinning.

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  • Corrected distance visual acuity decreased in the operated eye.

    • Implications:

    • LASIK may accelerate the onset of corneal ectasia in individuals with pre-existing susceptibility or biomechanical fragility.
    • This case highlights the importance of careful patient selection and screening for ectasia risk factors.
    • Further research is needed to understand the long-term implications and management of LASIK-induced ectasia.