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Implantable Collamer lens for hyperopia after radial keratotomy.
Kazutaka Kamiya1, Kimiya Shimizu
1Department of Ophthalmology, University of Kitasato School of Medicine, Kanagawa, Japan. kamiyak-tky@umin.ac.jp <kamiyak-tky@umin.ac.jp>
Journal of Cataract and Refractive Surgery
|July 29, 2008
Summary
Implantable Collamer Lens (ICL) effectively corrected hyperopia in a patient previously treated with radial keratotomy (RK). This refractive surgery option showed good visual outcomes and safety over one year.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Corneal Surgery
Background:
- Radial keratotomy (RK) is a refractive surgical procedure to correct myopia.
- Hyperopic shift can occur after RK, necessitating further visual correction.
- Implantable Collamer Lens (ICL) is an option for refractive error correction.
Observation:
- A patient with hyperopia after RK underwent ICL implantation.
- Preoperative refraction was +5.50 -1.5 x 85 with UCVA 0.2 and BSCVA 1.2.
- Postoperative refraction improved to +0.50 -1.25 x 90 with UCVA 0.8 and BSCVA 1.2.
Findings:
- The patient's hyperopia was successfully corrected using a hyperopic ICL.
- Visual acuity significantly improved, with uncorrected visual acuity reaching 0.8.
- No serious complications or hyperopic progression were noted during the 1-year follow-up.
Implications:
- Hyperopic ICL implantation presents a viable surgical alternative for hyperopia correction post-RK.
- This approach may be suitable for patients with pre-existing corneal biomechanical instability.
- Further research could explore ICL as a safe and effective option in similar cases.
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