Complications after Excimer Laser Photorefractive Keratectomy in High Myopia.
- Author:
Ji Won JEONG
1
;
Young Ho HAHN
Author Information
1. Department of Ophthalmology, Kosin Medical College, Pusan, Korea.
- Publication Type:Original Article
- Keywords:
Complications;
Excimer laser photorefractive keratectomy;
High myopia
- MeSH:
Astigmatism;
Follow-Up Studies;
Lasers, Excimer*;
Myopia*;
Photorefractive Keratectomy*;
Prospective Studies;
Visual Acuity
- From:Journal of the Korean Ophthalmological Society
1997;38(7):1128-1138
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
To evaluate the results and complications of excimer laser photorefractive keratectomy(PRK) in high myopia, 39-months follow-up study after PRK on 179 eyes with high myopia(more than -0.6 diopter) was performed prospectively. And comparative analysis in complications of excimer laser PRK between high myopia and low and moderate myopia(less than -5.9 diopter) was done. In case of high myopia, overcorrection was developed in 63 eyes(35.39%) and undercorrection was developed in 17 eyes(9.55%) 6 months after PRK. At 10 days, induced astigmatism appeared in 122 eyes(68.16%), but it wasdecreased with the lapse of time. Twenty three eyes(12.99%) lost 2 lines of best-spectacle-corrected visual acuity 1 year after surgery, but part of the eyes regained gradually baseline visual acuity. Clinically significant corneal haze was developed in 80 eyes(44.69%) during follow-up period. Excimer laser PRK in high myopia compared with low and moderate myopia induced significantly high occurrence in overcorrection, undercorrection, refractive astigmatism, loss of best-corrected visual acuity, and corneal haze(P<0.05).
