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Epikeratophakia: technique modifications and visual results compared to the national study
B D Nichols1, P A Williams, A V Spigelman
1Department of Ophthalmology, University of Minnesota, Minneapolis 55455.
Journal of Cataract and Refractive Surgery
|May 1, 1989
Summary
Epikeratophakia surgery offers refractive correction for aphakia, myopia, and keratoconus. Technique modifications improved outcomes, though complications like overcorrection occurred.
Area of Science:
- Ophthalmology
- Surgical Techniques
- Refractive Surgery
Background:
- Epikeratophakia is a surgical procedure used for refractive correction.
- The University of Minnesota has performed 28 epikeratophakia procedures since 1985.
- This study analyzes outcomes and technique modifications.
Purpose of the Study:
- To describe technique modifications in epikeratophakia.
- To compare refractive and visual outcomes with national results.
- To evaluate outcomes in aphakic, myopic, and keratoconus cases.
Main Methods:
- Performed 28 epikeratophakia procedures.
- Included 17 aphakic (13 adult, 4 pediatric), 7 myopic, and 4 keratoconus cases.
- Utilized a no-keratectomy technique and modified trephine placement.
Main Results:
- 80% of adult aphakic cases were within 3 diopters of emmetropia at six months.
- Myopic cases showed some overcorrection; all maintained preoperative visual acuity.
- Major complications included graft failure, hematoma, and severe overcorrection.
Conclusions:
- Technique modifications in epikeratophakia can improve refractive outcomes.
- The procedure is effective for aphakia, myopia, and keratoconus, with manageable complications.
- Further refinement of surgical techniques is beneficial for refractive correction.