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Clinical Outcomes of SMILE With a Triple Centration Technique and Corneal Wavefront-Guided Transepithelial PRK in High Astigmatism

Other Titles
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Authors
 Ikhyun Jun  ;  David Sung Yong Kang  ;  Dan Z Reinstein  ;  Samuel Arba-Mosquera  ;  Timothy J Archer  ;  Kyoung Yul Seo  ;  Tae-Im Kim 
Citation
 Journal of Refractive Surgery, Vol.34(3) : 156-163, 2018 
Journal Title
 Journal of Refractive Surgery 
ISSN
 1081-597X 
Issue Date
2018
MeSH
Adult ; Astigmatism/physiopathology/*surgery ; Corneal Stroma/*surgery ; Corneal Topography ; Corneal Wavefront Aberration/*surgery ; Female ; Follow-Up Studies ; Humans ; Excimer/*therapeutic use Lasers ; Male ; Myopia/physiopathology/*surgery ; Photorefractive Keratectomy/*methods ; Ocular/physiology Refraction ; Retrospective Studies ; Visual Acuity/physiology ; Young Adult
Abstract
PURPOSE: To comparatively investigate the clinical outcomes, vector parameters, and corneal aberrations of small incision lenticule extraction (SMILE) with a triple centration technique and corneal wavefront-guided transepithelial photorefractive keratectomy (PRK) for the correction of high astigmatism. METHODS: This retrospective, comparative case series study included 89 eyes (89 patients) that received treatment for myopia with high astigmatism (>/= 2.50 diopters) using SMILE with a triple centration technique (SMILE group; 45 eyes) and corneal wavefront-guided transepithelial PRK (transepithelial PRK group; 44 eyes). Visual acuity measurement, manifest refraction, slit-lamp examination, autokeratometry, corneal topography, and evaluation of corneal wavefront aberration were performed preoperatively and at 1, 3, and 6 months after surgery. The safety, efficacy, vector parameters, and corneal aberrations at 6 months after surgery were compared between the two groups. RESULTS: At 6 months after surgery, the transepithelial PRK and SMILE groups exhibited comparable mean uncorrected distance visual acuities (-0.06 +/- 0.07 and -0.05 +/- 0.07 logMAR, respectively), safety, efficacy, and predictability of refractive and visual outcomes. There was a slight but statistically significant difference in the correction index between the transepithelial PRK and SMILE groups (0.96 +/- 0.11 and 0.91 +/- 0.10, respectively). Whereas the transepithelial PRK group exhibited increased corneal spherical aberration and significantly reduced corneal coma and trefoil, no changes in aberrometric values were noted in the SMILE group. CONCLUSIONS: Both SMILE with a triple centration technique and corneal wavefront-guided transepithelial PRK are effective and provide predictable outcomes for the correction of high myopic astigmatism, although slight undercorrection was observed in the SMILE group. The triple centration technique was helpful in astigmatism correction by SMILE. [J Refract Surg. 2018;34(3):156-163.].
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/162667
Full Text
https://www.healio.com/ophthalmology/journals/jrs/2018-3-34-3/%7B91520926-55c6-4ff1-bf65-f3e2c9159bc7%7D/clinical-outcomes-of-smile-with-a-triple-centration-technique-and-corneal-wavefront-guided-transepithelial-prk-in-high-astigmatism
DOI
10.3928/1081597x-20180104-03
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실)
Yonsei Authors
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
전익현(Jun, Ik Hyun) ORCID logo https://orcid.org/0000-0002-2160-1679
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