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Dry eye after LASIK enhancement by flap lifting
Ikuko Toda1, Naoko Kato-Asano, Yoshiko Hori-Komai
1Minamiaoyama Eye Clinic, Tokyo, Japan. ikuko@tka.att.ne.jp
Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|April 25, 2006
Summary
LASIK enhancement does not worsen dry eye symptoms or compromise tear function. Post-surgery evaluations showed no significant changes in dry eye indicators, suggesting other factors may cause dry eye after LASIK.
Area of Science:
- Ophthalmology
- Refractive Surgery
Background:
- Dry eye is a common complication following LASIK.
- LASIK enhancement procedures are performed to correct residual refractive errors.
Purpose of the Study:
- To evaluate the recurrence of dry eye symptoms and changes in ocular surface parameters after LASIK enhancement.
Main Methods:
- Sixty-three eyes of 42 patients undergoing LASIK enhancement were assessed.
- Evaluations included subjective dry eye symptoms, tear break-up time (BUT), Schirmer test, corneal staining, and corneal sensitivity.
- Measurements were taken pre-operatively and at 1, 3, and 6 months post-operatively.
Main Results:
- Subjective dry eye symptoms, Schirmer test values, and tear BUT remained stable post-enhancement.
- Corneal staining scores initially increased at 1 month but improved by 3 months.
- Corneal sensitivity decreased at 1, 3, and 6 months post-enhancement.
Conclusions:
- LASIK enhancement does not appear to exacerbate dry eye symptoms or impair tear function.
- The findings suggest that factors beyond neurotrophic effects may be involved in post-LASIK dry eye.

