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Laser intrastromal keratoplasty--case report.
Mirko Jankov1, Michael Mrochen, Theo Seiler
1Augenklinik, UniversitätsSpital Zürich, Switzerland. mirkojankov@hotmail.com
Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|February 7, 2004
Summary
Laser intrastromal keratoplasty successfully corrected high hyperopia and irregular astigmatism in a patient with a thin cornea. This innovative procedure offers a potential solution for complex refractive errors previously considered untreatable.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Refractive Surgery
Background:
- High hyperopia and irregular astigmatism pose significant challenges in refractive correction, especially in patients with thin corneas.
- Previous laser in situ keratomileusis (LASIK) and lamellar keratoplasty can lead to complex corneal irregularities.
Observation:
- A patient with severe high hyperopia (+8.00 D) and irregular astigmatism underwent laser intrastromal keratoplasty using a donor corneal lenticule.
- Preoperative visual acuity was poor (20/300 uncorrected, 20/100 corrected) with a thin central corneal thickness (398 µm).
Findings:
- Postoperatively, best spectacle-corrected visual acuity improved to 20/50, with a significant reduction in hyperopia and astigmatism.
- Corneal topography demonstrated a smoother surface and increased curvature, while central corneal thickness increased to 600 µm.
Implications:
- Laser intrastromal keratoplasty is a feasible technique for correcting high hyperopia and irregular astigmatism in eyes with thin corneal beds.
- This procedure may offer a viable alternative for patients unsuitable for conventional refractive surgeries.
