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Comparison of Hyperopic Photorefractive Keratectomy and LASIK
원시에서 굴절교정레이저각막절제술과 라식수술의 비교
JKOS 2019 Jun;60(6):528-33
Published online June 15, 2019;  https://doi.org/10.3341/jkos.2019.60.6.528
Copyright © 2019 The Korean Ophthalmological Society.
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Don Gyung Kim, MD1, Jae Ho Choi, MD2, Sung Won Kim, MS3, Tae Hoon Choi, MD, PhD1, Chul Myong Choe, MD, PhD1
김돈경1·최재호2·김성원3·최태훈1·최철명1

Nune Eye Hospital1, Seoul, Korea
Nune Eye Hospital2, Daegu, Korea
Department of Mathematics and Statistics, Johns Hopkins University3, Baltimore, MD, USA
서울 누네안과병원1, 대구 누네안과병원2, 존스홉킨스대학교 응용수학 및 통계학과3
Received May 3, 2018; Revised September 11, 2018; Accepted May 17, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
Purpose: We compared the results of photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) for the correction of hyperopia.
Methods: Patients who underwent PRK or LASIK, under +6.00 diopters (D) hyperopia and under ‐2.00 D astigmatism were included. In total, 21 patients (38 eyes) underwent PRK surgery and 25 patients (41 eyes) underwent LASIK surgery. We compared the visual acuity, refractive error, safety, and efficacy between the two groups.
Results: The manifest refractive spherical equivalent (MRSE) of the PRK and LASIK groups at 1 and 3 months after surgery was significantly different between the two groups (p < 0.05). However, the MRSE was not significantly different at postoperative 6 and 12 months between the two groups. The uncorrected visual acuity (UCVA) of the PRK and LASIK groups at 1 month after surgery was significantly different between the two groups (p < 0.05). However, the UCVA was not significantly different at postoperative 3, 6, and 12 months between the two groups. The best‐corrected visual acuity was not significantly different at postoperative 1, 3, 6, and 12 months between the two groups. The safety index was not significantly different between the two groups at postoperative 1, 3, 6, and 12 months. The efficacy index of the PRK group was lower than that of the LASIK group at 1 month after surgery. However, the efficacy index was not significantly different at postoperative 3, 6, and 12 months between the two groups. There was no statistically significant difference between the predictability of the two groups at postoperative 1 year.
Conclusions: After PRK treatment, temporary myopic deviation was observed after 1 month, but there was no significant difference between the two treatments after 3 months of follow‐up. In the correction of hyperopia, there was no significant difference between PRK and LASIK in efficacy or safety.
Keywords : Hyperopia, LASIK, Photorefractive keratectomy

 

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