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  4. Surgical results of photorefractive keratectomy with different operative modes
 
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Surgical results of photorefractive keratectomy with different operative modes

Journal
Journal of Cataract and Refractive Surgery
Journal Volume
26
Journal Issue
6
Pages
879-886
Date Issued
2000
Author(s)
WEI-LI CHEN  
FUNG-RONG HU  
I-JONG WANG  
Chang H.-W.
DOI
10.1016/S0886-3350(00)00371-0
URI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0033912189&doi=10.1016%2fS0886-3350%2800%2900371-0&partnerID=40&md5=06bd4ab1cc561141dcb06d80be3d0f42
https://scholars.lib.ntu.edu.tw/handle/123456789/517858
Abstract
Purpose: To compare the predictability, efficacy, and safety of photorefractive keratectomy (PRK) using different operative modes. Setting: National Taiwan University Hospital, Taipei, Taiwan. Methods: One hundred fifty-three eyes of 80 patients who had PRK for myopia with a follow-up of at least 6 months were studied. All patients were sequentially assigned to 1 of the following surgical modes: mode 1: PRK with the Summit OmniMed excimer laser; mode 2: PRK with the Summit Apex Plus laser; mode 3: PRK with the Summit Apex Plus laser with anti-central-island pretreatment. Results: Six months after treatment, a homogeneous topographic pattern was seen in 76% of mode 1 eyes, 70% of mode 2 eyes, and 88% of mode 3 eyes. In the low myopia group (?-6.0 diopters [D]), the mean residual refractive error was -0.79 D ± 0.59 (SD) in mode 1, -0.94 ± 1.02 D in mode 2, and -0.31 ± 0.42 D in mode 3. In the high myopia group (>-6.0 D), it was -1.93 ± 1.51 D, -1.54 ± 0.88 D, and -0.70 ± 0.81 D, respectively. Uncorrected visual acuity of 20/25 or better was achieved in 81% of mode 1 eyes, 56% of mode 2 eyes, and 89% of mode 3 eyes in the low myopia group, and in 48%, 28%, and 72%, respectively, in the high myopia group. Conclusions: Photorefractive keratectomy appears to be a predictable and effective procedure. The best results were achieved with the Summit Apex Plus laser with anti-central-island pretreatment, followed by the Summit OmniMed laser. The Summit Apex Plus laser without anti-central- island pretreatment produced less satisfactory results. (C) 2000 ASCRS and ESCRS.
SDGs

[SDGs]SDG3

Other Subjects
article; excimer laser; female; follow up; human; keratectomy; major clinical study; male; myopia; postoperative period; priority journal; refraction error; safety; treatment outcome; visual acuity; Adult; Cornea; Corneal Diseases; Corneal Topography; Humans; Keratectomy, Photorefractive, Excimer Laser; Myopia; Refraction, Ocular; Retrospective Studies; Treatment Outcome; Visual Acuity
Type
journal article

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