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Comparison of goldmann applanation tonometer, noncontact tonometer, and TonoPen XL for intraocular pressure measurement in different types of glaucomatous, ocular hypertensive, and normal eyes.

Title
 Comparison of goldmann applanation tonometer, noncontact tonometer, and TonoPen XL for intraocular pressure measurement in different types of glaucomatous, ocular hypertensive, and normal eyes. 
Authors
 Na Rae Kim ; Chan Yun Kim ; Eun Suk Lee ; Gong Je Seong ; Hyunjoong Kim 
Issue Date
2011
Journal Title
 Current Eye Research 
ISSN
 0271-3683 
Citation
 Current Eye Research, Vol.36(4) : 295~300, 2011 
Abstract
PURPOSE: To compare intraocular pressure (IOP) measurements by Goldmann applanation tonometer (GAT), noncontact tonometer (NCT), and TonoPen XL in glaucomatous, ocular hypertensive (OHT), and normal eyes, all with various central corneal thickness (CCT). METHODS: In 508 subjects, IOP was measured by three different tonometers: GAT, NCT, and TonoPen. CCT was also measured. RESULTS: There was a statistically significant difference between IOP measurements made using the three different tonometers (RMANOVA, P < 0.0001). Both NCT/GAT and TonoPen/GAT differences were significantly associated with age, CCT, IOP, and glaucoma diagnosis (multiple regression analysis, all P ≤ 0.05). CCT and IOP had the greatest effect on IOP measurement variance by different tonometers. IOP measurements made by NCT were consistently higher than those made by GAT; this difference increased both with IOP and CCT levels, but decreased with age and OHT. In addition, TonoPen overestimated the GAT in the eyes of subjects with OHT. CONCLUSION: IOP measurement differences between the three tonometers are affected by age, type of glaucoma, and especially CCT and IOP levels.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/92807
DOI
10.3109/02713683.2010.542865
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Ophthalmology
Yonsei Authors
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Link
 http://informahealthcare.com/doi/abs/10.3109/02713683.2010.542865
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