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Comparison between Wavefront-optimized and corneal Wavefront-guided Transepithelial photorefractive keratectomy in moderate to high astigmatism

Other Titles
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Authors
 Ikhyun Jun  ;  David Sung Yong Kang  ;  Samuel Arba-Mosquera  ;  Jin Young Choi  ;  Hyung Keun Lee  ;  Eung Kweon Kim  ;  Kyoung Yul Seo  ;  Tae-Im Kim 
Citation
 BMC Ophthalmology, Vol.18(1) : 154, 2018 
Journal Title
 BMC Ophthalmology 
Issue Date
2018
MeSH
Adolescent ; Adult ; Astigmatism/complications/physiopathology/*surgery ; Corneal Topography ; Corneal Wavefront Aberration/diagnosis/*etiology/surgery ; Corneal/pathology/*surgery Epithelium ; Female ; Follow-Up Studies ; Humans ; Excimer/*therapeutic use Lasers ; Male ; Myopia/complications/physiopathology/*surgery ; Photorefractive Keratectomy/*methods ; Postoperative Period ; Ocular *Refraction ; Retrospective Studies ; Treatment Outcome ; Visual Acuity ; Young Adult
Keywords
Astigmatism ; Corneal Wavefront-guided ; Transepithelial photorefractive keratectomy ; Wavefront-optimized
Abstract
BACKGROUND: To compare the clinical outcomes of wavefront-optimized (WFO) transepithelial photorefractive keratectomy (trans-PRK) and corneal wavefront-guided (CWFG) trans-PRK for myopic eyes with moderate to high astigmatism. METHODS: One hundred ninety-six eyes (196 patients) with moderate to high astigmatism (>/= 1.75 D) treated with WFO or CWFG trans-PRK (101 and 95 eyes, respectively) were retrospectively registered. Safety, efficacy, predictability, vector analysis, and corneal aberrations were compared between groups preoperatively and at 6 months postoperatively. RESULTS: At postoperative 6 months, the mean logMAR uncorrected distance visual acuity was similar in the WFO (- 0.07 +/- 0.08) and CWFG (- 0.07 +/- 0.07) groups. Safety, efficacy, and predictability of refractive and visual outcomes were also similar. The correction indices were 1.02 +/- 0.14 and 1.03 +/- 0.13 in the WFO and CWFG groups, respectively, with no significant difference. The absolute values of the angle of error were significantly higher in the WFO group (2.28 +/- 2.44 vs. 1.40 +/- 1.40; P = 0.002). Corneal total root mean square higher-order aberrations and corneal spherical aberrations increased postoperatively in both groups; however, the change was smaller in the CWFG group. Corneal coma showed a significant increase postoperatively only in the WFO group. CONCLUSIONS: WFO and CWFG trans-PRK are safe and effective for correcting moderate to high astigmatism. However, CWFG trans-PRK provides a more predictable astigmatism correction axis and fewer induced corneal aberrations.
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/162657
Files in This Item:
T201802097.pdf Download
DOI
10.1186/s12886-018-0827-x
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실)
Yonsei Authors
김응권(Kim, Eung Kweon)
김태임(Kim, Tae Im) ORCID logo https://orcid.org/0000-0001-6414-3842
서경률(Seo, Kyuong Yul) ORCID logo https://orcid.org/0000-0002-9855-1980
이형근(Lee, Hyung Keun) ORCID logo https://orcid.org/0000-0002-1123-2136
전익현(Jun, Ik Hyun) ORCID logo https://orcid.org/0000-0002-2160-1679
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