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토포라이저 바리오를 이용한 각막굴절력검사의 신뢰도 연구

Other Titles
 Clinical Reliability of the Topolyzer Vario Instrument for Measurement of Corneal Refractive Power 
Authors
 설동헌  ;  전익현  ;  이형근  ;  김응권  ;  서경률  ;  김태임 
Citation
 JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY, Vol.61(8) : 882-889, 2020-08 
Journal Title
 JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY 
ISSN
 0378-6471 
Issue Date
2020-08
Keywords
Corneal refractive power ; Keratometry ; Topographer ; Topolyzer vario
Abstract
Purpose: To evaluate the clinical reliability of the Topolyzer Vario (Wavelight-Alcon, Erlangen, Germany), we compared three different corneal topographers in terms of corneal refractive power. Methods: The medical records of patients who visited Severance Hospital for corneal refractive surgery were retrospectively reviewed. Keratometric data of patients who underwent evaluations using the Pentacam HR (Oculus, Wetzlar, Germany), ORBscan II (Bausch & Lomb, Rochester, NY, USA), and Topolyzer Vario instruments on the same day were obtained. Flat keratometry (Kf), steep keratometry (Ks), mean keratometry (Km), astigmatism keratometry (Kastig), Cartesian astigmatism (J0), and oblique astigmatism (J45) values were calculated. The measurement values of the three devices were subjected to Pearson’s correlation analysis and repeated measures analysis of variance (with Bonferroni correction); a Bland-Altman plot was also created. Results: The keratometric data of 80 eyes were included in the analysis and all of the keratometric measurements obtained by the three devices showed significant correlations, i.e., good agreement. The Kf and Km measurements of the Pentacam HR were flatter than those of the ORBscan II, and the Kf, Km, Ks, and J45 measurements were flatter than those of the Topolyzer Vario. However, there was no significant difference in keratometric values between the ORBscan II and Topolyzer Vario. Furthermore, the difference in corneal refractive power between the Pentacam HR and Topolyzer Vario was not clinically significant. Conclusions: When measuring the corneal refractive power of patients without any history of corneal disorder or ocular surgery, the Topolyzer Vario is a clinically reliable device that shows similar performance to the ORBscan II and Pentacam HR.
Files in This Item:
T202004536.pdf Download
DOI
10.3341/jkos.2020.61.8.882
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Eung Kweon(김응권) ORCID logo https://orcid.org/0000-0002-1453-8042
Kim, Tae-Im(김태임) ORCID logo https://orcid.org/0000-0001-6414-3842
Seo, Kyoung Yul(서경률) ORCID logo https://orcid.org/0000-0002-9855-1980
Lee, Hyung Keun(이형근) ORCID logo https://orcid.org/0000-0002-1123-2136
Jun, Ik Hyun(전익현) ORCID logo https://orcid.org/0000-0002-2160-1679
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/180280
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