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Fitting contact lenses after myopic keratomileusis
A C Chou1, C A Swinger, S K Cogger
1Department of Ophthalmology, Manhattan Eye, Ear, and Throat Hospital, New York, New York, USA.
Journal of Cataract and Refractive Surgery
|April 13, 1999
Summary
Contact lens fitting is effective for correcting residual refractive errors after myopic keratomileusis (MKM). Rigid gas-permeable lenses were successfully used in 96% of cases, offering long-term vision correction for up to 16 years.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Corneal Topography
Background:
- Myopic keratomileusis (MKM) is a lamellar refractive surgery procedure.
- Residual refractive errors can occur post-MKM, necessitating further visual correction.
- Contact lens fitting is a potential method to manage these postoperative refractive challenges.
Purpose of the Study:
- To assess the long-term effectiveness and outcomes of contact lens fitting after myopic keratomileusis (MKM).
- To determine the success rate and types of contact lenses used for correcting residual refractive errors post-MKM.
Main Methods:
- Prospective evaluation of 27 eyes (20 patients) with residual refractive errors after MKM.
- Contact lens fitting performed at a mean of 9.4 months post-surgery using the trial-lens method.
- Recording and analysis of preoperative/postoperative keratometry, refractions, and contact lens specifications.
Main Results:
- Successful contact lens fitting achieved in 96% of eyes (26 out of 27).
- Rigid gas-permeable (RGP) lenses were used in 89% of successful fits, with a mean power of -5.24 D.
- Lenses were tolerated for up to 16 years, with one case of late-onset myopia.
Conclusions:
- Post-MKM corneal topography is altered, but postoperative keratometry is reliable for initial RGP lens fitting.
- Conventional contact lens fitting methods are validated for patients who have undergone MKM.
- Contact lens correction offers a viable long-term solution for residual refractive errors after MKM.
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