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Laser in situ Keratomileusis for Overcorrection After Radial Keratotomy
Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|December 25, 2013
Summary
Laser in situ keratomileusis (LASIK) effectively treats hyperopia after radial keratotomy. This safe procedure offers significant refractive correction and visual acuity improvement in most patients.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Corneal Surgery
Background:
- Radial keratotomy (RK) can induce hyperopic shifts.
- Laser in situ keratomileusis (LASIK) is evaluated for correcting post-RK hyperopia.
Discussion:
- The study assessed 20 eyes undergoing LASIK for hyperopia post-RK.
- Nidek EC-5000 excimer laser and Hansatome microkeratome were utilized.
- Ablation zones ranged from 5.5 to 7.5 mm for hyperopic correction.
Key Insights:
- Mean preoperative refraction was +3.44 D, reduced to -0.66 D postoperatively.
- 80% of eyes achieved correction within ±1.00 D of emmetropia.
- 50% of eyes achieved a best spectacle-corrected visual acuity of 20/20 or better.
Outlook:
- LASIK is a safe and effective treatment for induced hyperopia following RK.
- No vision-threatening complications were reported.
- Further studies could explore long-term outcomes and refine surgical parameters.
