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Indian Journal of Clinical and Experimental Ophthalmology

Comparison of rebound tonometry with applanation tonometry for intraocular pressure measurement

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Author Details : CN Madhusudhana, S. Shyam

Volume : 3, Issue : 3, Year : 2017

Article Page : 329-332

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Purpose: To compare the readings of the Goldmann’s applanation tonometry with that of the iCare Ta01i in Indian patients.
Materials and Methods: Intraocular pressure measurements were obtained in 440 eyes of 220 subjects in which 320 were normal eyes and 120 eyes had a high IOP. A thorough examination was done and IOP was measured in all subjects using iCare Ta01 tonometer and the Goldmann’s applanation tonometer 3 times each and the average was taken. All examinations and measurements were done by the same 2 personnel.
Results: Intraocular pressure measurements with ICare Ta01 tonometer compared with the Goldmann’s applanation tonometer were not found to have a significant difference (mean ±2.34mmHg). The 95% confidence interval between readings with the 2 methods was within acceptable limits.
Conclusion: The ICare Ta01 tonometer measurement of intraocular pressure showed excellent correlation with those from the Goldmann applanation tonometer, which is the gold standard for IOP measurement. The iCare, with all its advantages over the GAT, can be used as a routine instrument for measurement of IOP in ophthalmology practice.

How to cite : Madhusudhana C, Shyam S, Comparison of rebound tonometry with applanation tonometry for intraocular pressure measurement. Indian J Clin Exp Ophthalmol 2017;3(3):329-332

Copyright © 2017 by author(s) and Indian J Clin Exp Ophthalmol. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC-BY-NC 4.0) (