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Significance of dynamic contour tonometry in evaluation of progression of glaucoma in patients with a history of laser refractive surgery

 Sang Yeop Lee  ;  Eun Woo Kim  ;  Wungrak Choi  ;  Chan Keum Park  ;  Sangah Kim  ;  Hyoung Won Bae  ;  Gong Je Seong  ;  Chan Yun Kim 
 BRITISH JOURNAL OF OPHTHALMOLOGY, Vol.104(2) : 276-281, 2020 
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dynamic contour tonometry ; glaucoma progression ; goldmann applanation tonometry ; intraocular pressure ; laser refractive surgery
AIMS: In this study, we tested the hypothesis that intraocular pressure (IOP) parameters measured by dynamic contour tonometry (DCT) would be more relevant in progression of glaucoma when there is a history of laser refractive surgery (LRS) than the IOP parameters measured by Goldmann applanation tonometry (GAT) or calculated by correction formulae. METHODS: Ninety-eight eyes in 54 patients with open-angle glaucoma and a history of LRS were included in this retrospective study. IOP was measured by both GAT and DCT during follow-up. Baseline, mean, and peak IOP, IOP fluctuation, and IOP reduction were measured by each tonometry method. Corrected IOP parameters using central corneal thickness and mean keratometry values were also analysed. Clustered logistic regression was used to identify variables correlated with progression of glaucoma. Areas under the curve (AUCs) for correlated variables were also compared. RESULTS: The mean DCT value (OR 1.36, p=0.024), peak DCT value (OR 1.19, p=0.02) and pattern SD (OR 1.10, p=0.016) were significant risk factors for progression. There was a significant difference in the predictive ability of the mean DCT and GAT values (AUC 0.63 and 0.514, respectively; p=0.01) and of the peak DCT and GAT values (0.646 and 0.503, respectively, p=0.009). The AUCs for corrected IOP did not exceed those of DCT. CONCLUSIONS: IOP measurements were more associated with progression of glaucoma when measurements were obtained by DCT than by GAT or correction formulae in eyes with a history of LRS.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Chan Yun(김찬윤) ORCID logo https://orcid.org/0000-0002-8373-9999
Bae, Hyoung Won(배형원) ORCID logo https://orcid.org/0000-0002-8421-5636
Seong, Gong Je(성공제) ORCID logo https://orcid.org/0000-0002-5456-4296
Lee, Sang Yeop(이상엽) ORCID logo https://orcid.org/0000-0002-3834-7953
Choi, Wungrak(최웅락) ORCID logo https://orcid.org/0000-0002-3015-2502
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