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Excimer laser photorefractive keratectomy in high myopia. A multicenter study
Archives of Ophthalmology (Chicago, Ill. : 1960)
|July 1, 1992
Summary
Excimer photorefractive keratectomy shows promise for correcting high myopia. This surgical treatment achieved significant refractive correction in most highly myopic eyes within six months.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Refractive Surgery
Background:
- High myopia presents significant visual challenges.
- Current treatments for high myopia have limitations.
- Excimer laser technology offers potential for refractive correction.
Purpose of the Study:
- To evaluate the safety and efficacy of excimer photorefractive keratectomy (PRK) for high myopia.
- To assess visual outcomes and refractive stability after PRK in highly myopic eyes.
- To determine the potential of PRK as a surgical option for severe myopia.
Main Methods:
- Excimer photorefractive keratectomy performed on 16 highly myopic eyes (≥8 D).
- Follow-up conducted for 6 months post-surgery.
- Ablation depths ranged from 137 to 230 microns.
Main Results:
- Mean postoperative spherical equivalent improved from -11.57 D to -0.90 D.
- Eleven of 16 eyes achieved correction within 2 D of the intended refraction.
- Epithelial healing occurred within 3-4 days with no erosions; mild haze observed, resolving over time.
- Best corrected visual acuity was maintained within one Snellen line for most patients.
Conclusions:
- Excimer photorefractive keratectomy is a promising surgical treatment for high myopia.
- The procedure demonstrated good safety and efficacy in this preliminary study.
- Further research is warranted to optimize outcomes for higher myopia correction.