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Fourier-domain optical coherence tomography evaluation of clear corneal incision structure according to blade material

Authors
 Hun Lee  ;  Eung Kweon Kim  ;  Hong Seok Kim  ;  Tae-im Kim 
Citation
 Journal of Cataract and Refractive Surgery, Vol.40(10) : 1615-1624, 2014 
Journal Title
 Journal of Cataract and Refractive Surgery 
ISSN
 0886-3350 
Issue Date
2014
Abstract
PURPOSE: To use Fourier-domain optical coherence tomography (OCT) to evaluate the wound characteristics of clear corneal incisions (CCIs) created with a metal or diamond blade in cataract surgery. SETTING: Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea. DESIGN: Prospective comparative observational study. METHODS: Patients who had cataract surgery were randomized into 2 groups based on whether a metal blade (Group 1, 37 eyes) or diamond blade (Group 2, 33 eyes) was used to create a 2.8 mm temporal CCI. One day, 1 week, and 1 month postoperatively, structural characteristics of the CCI were analyzed using RTVue-100 Fourier-domain OCT. Parameters included incision angle, corneal thickness, epithelial or endothelial gaps, and Descemet membrane detachment. Visual acuity, surgically induced astigmatism (SIA), and ocular aberrations were evaluated. RESULTS: There was a significant difference in corneal thickness at the 1.0 mm temporal side from midpoint. The mean uncorrected distance visual acuity in Group 2 (33 eyes) improved significantly over time. In both groups, corneal thickness at the midpoint, 1.0 mm temporal side, and 1.0 mm nasal side from the midpoint of the incision significantly decreased over time. At all timepoints, temporal and nasal thickness in Group 2 was significantly greater than in Group 1 (37 eyes), with the exception of temporal thickness at 1 month. In both groups, wound healing was reliable over time. There were no significant between-group differences in SIA or changes in aberrations. CONCLUSIONS: Corneal thickness at the incision site showed a significant difference between the 2 groups. Both groups achieved structural stabilization. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.
Full Text
http://www.sciencedirect.com/science/article/pii/S0886335014008542
DOI
10.1016/j.jcrs.2014.01.036
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
김응권(Kim, Eung Kweon) ORCID logo https://orcid.org/0000-0002-1453-8042
김태임(Kim, Tae Im) ORCID logo https://orcid.org/0000-0001-6414-3842
김홍석(Kim, Hong Seok)
이훈(Lee, Hun)
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/100133
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