Clinical results of excimer laser photorefractive keratectomy: A multicenter study of 265 eyes
- 1 November 1995
- journal article
- clinical trial
- Published by Wolters Kluwer Health in Journal of Cataract & Refractive Surgery
- Vol. 21 (6) , 644-652
- https://doi.org/10.1016/s0886-3350(13)80560-3
Abstract
Efficacy, predictability, and safety of excimer laser photorefractive keratectomy were evaluated at centers in Paris and Brest, France. Photoablation was performed with the VISX laser on 265 eyes (151 at the Paris center and 114 at the Brest center). The eyes were clinically and statistically evaluated over a six month follow-up. Initial myopia ranged from -0.7 to -19.4 diopters (D) (mean spherical equivalent [SE] -5.9 D) in the Paris center and from -0.9 to -14.5 D (SE -4.5 D) in the Brest center. At both centers, the mean uncorrected visual acuity was worse than 20/200; over 90% of cases in each center had a best uncorrected visual acuity of 20/100 or worse. Results are reported globally and for subgroups of myopia: Group A, SE better than or equal to -3.0 D; Group B, SE worse than -3.0 D and better than or equal to -7.0 D; Group C, SE worse than -7.0 D. Uncorrected visual acuity was significantly improved in the patients followed for six months; 64% of Paris cases and 62% of Brest cases obtained an uncorrected visual acuity of 20/40 or better. Predictability of the treatment was good; 67% of Paris eyes and 74% of Brest eyes were less than 1.0 D from the intended correction after six months. The data suggest that the initial myopia affected the efficacy and predictability of the treatment; results in the mild to moderate myopia eyes were significantly better than results in the severe myopia eyes. One case of visual acuity regression (less than one line) was observed in the two groups. This was associated with corneal haze of moderate intensity.Keywords
This publication has 8 references indexed in Scilit:
- Photorefractive keratectomy to treat low, medium, and high myopia: A multicenter studyJournal of Cataract & Refractive Surgery, 1994
- Excimer laser photorefractive keratectomy for myopia: Two-year follow-upJournal of Cataract & Refractive Surgery, 1994
- Central Photorefractive Keratectomy for MyopiaArchives of Ophthalmology (1950), 1990
- One-Year Refractive Results of Central Photorefractive Keratectomy for Myopia in the Nonhuman Primate CorneaArchives of Ophthalmology (1950), 1990
- Corneal Stromal Wound Healing in Rabbits After 193-nm Excimer Laser Surface AblationArchives of Ophthalmology (1950), 1989
- Human Excimer Laser Lamellar KeratectomyOphthalmology, 1989
- Excimer laser surgery of the cornea: Qualitative and quantitative aspects of photoablation according to the energy densityJournal of Cataract & Refractive Surgery, 1986
- Excimer Laser Surgery of the CorneaAmerican Journal of Ophthalmology, 1983