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Related Experiment Videos

Does hinge position affect dry eye after laser in situ keratomileusis?

Mohammad Ghoreishi1, Naser Samadi Aidenloo, Alireza Peyman

  • 1Farabi Eye Hospital, Isfahan, Iran.

Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde
|August 27, 2005
PubMed
Summary

Corneal flap hinge position in laser in situ keratomileusis (LASIK) surgery does not impact dry eye symptoms or signs. Surgeons can choose the hinge position based on preference for optimal outcomes in dry eye disease management.

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Area of Science:

  • Ophthalmology
  • Corneal Surgery
  • Dry Eye Disease

Background:

  • Dry eye is a common concern after laser in situ keratomileusis (LASIK).
  • The position of the corneal flap hinge may influence postoperative dry eye symptoms.

Purpose of the Study:

  • To investigate the effect of corneal flap hinge position (nasal vs. superior) on dry eye after LASIK.

Main Methods:

  • Prospective, double-masked, randomized controlled trial.
  • 212 eyes of 106 myopic patients underwent LASIK with either a superior or nasal hinge.
  • Evaluated visual acuity, tear film breakup time, Schirmer's test, and Ocular Surface Disease Index (OSDI) scores.

Main Results:

  • No significant differences in tear film breakup time or Schirmer's test results between nasal and superior hinge groups.

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  • Subjective dry eye symptoms (OSDI) showed no significant difference postoperatively.
  • Both objective and subjective measures indicated no impact of hinge position on dry eye.

    • Conclusions:

    • Neither nasal nor superior corneal flap hinge placement affects dry eye signs or symptoms following LASIK.
    • Surgeons can select hinge position based on personal preference and surgical ease.