Photorefractive keratectomy retreatment after LASIK |
| |
Authors: | Neira-Zalentein Waldir Moilanen Jukka A O Tuisku Ilpo S Holopainen Juha M Tervo Timo M T |
| |
Institution: | Department of Ophthalmology, University of Helsinki, Finland. |
| |
Abstract: | PURPOSE: To study the results of late photorefractive keratectomy (PRK) in corneas originally subjected to LASIK. METHODS: Seven eyes of seven patients who had LASIK for myopia were retreated with PRK at least 2 years after LASIK. Uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), refraction, and haze were evaluated before and after LASIK and after retreatment by PRK. RESULTS: Photorefractive keratectomy retreatment improved BSCVA in six (86%) of seven eyes, and one (14%) eye showed no changes. None of the eyes lost lines of BSCVA. Five of seven eyes developed mild haze, which disappeared before the last postoperative follow-up. CONCLUSIONS: Photorefractive keratectomy retreatment performed at least 2 years after LASIK can improve visual acuity. We hypothesize that LASIK-induced corneal nerve damage disturbs corneal wound healing by increasing the tendency for development of haze. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|