Agreement and repeatability of Icare ic100 tonometer

Agreement and repeatability of Icare ic100 tonometer

Purpose: To find the agreement and repeatability of Icare ic100 tonometer. Methods: We included 150 subjects above the age of 18 years for this cross-sectional, multicenter study with intraocular pressure (IOP) ≥7 mmHg. After the initial ophthalmic examination, two masked examiners took five IOP mea...

Full description

Saved in:
Bibliographic Details
Published in:Indian journal of ophthalmology Vol. 68; no. 10; pp. 2122 - 2125
Main Authors: Jose, Judy, Ve, Ramesh, Pai, H, Biswas, Sayantan, Parimi, Vamsi, Poojary, Paresh, Nagarajan, T
Format: Journal Article
Language:English
Published: India Wolters Kluwer India Pvt. Ltd 01-10-2020
Medknow Publications and Media Pvt. Ltd
Medknow Publications & Media Pvt. Ltd
Wolters Kluwer - Medknow
Subjects:
Adolescent
Agreements
Cornea
Cross-Sectional Studies
Equipment and supplies
Humans
Intraocular Pressure
Methods
Ocular Hypertension
Original
Reproducibility of Results
Statistical analysis
Tonometry
Tonometry, Ocular
India
repeatability
Agreement
intraocular pressure
Icare-tonometer
tonometer
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Purpose: To find the agreement and repeatability of Icare ic100 tonometer. Methods: We included 150 subjects above the age of 18 years for this cross-sectional, multicenter study with intraocular pressure (IOP) ≥7 mmHg. After the initial ophthalmic examination, two masked examiners took five IOP measurements using three different instruments; Icare ic100, Icare TA01i, and Goldmann applanation tonometer (GAT) in only one eye of the participants. Comparison of agreement of IOP using different instruments was quantified with intraclass correlation coefficient (ICC) using the two-way random effects models of absolute agreement and Cronbach's alpha. The test-retest variability of the instruments was assessed by deriving repeatability coefficient (RC) and coefficient of variation (CV). Results: Agreement between the tonometers across the different IOP groups had no statistically significant difference in their mean IOP. Icare ic100 was found to have good reliability across all IOP groups (ICC value >0.78) when compared with Icare TA01i. In comparison with GAT, Icare ic100 showed good reliability across all IOP groups (ICC >0.87) except >16 to <23 mmHg group where it showed moderate reliability (ICC = 0.52). Icare ic100 showed good repeatability with RC and CV of 2.67 and 4.89, respectively. Conclusion: Icare ic100 rebound tonometer can measure IOP with relatively small measurement error and can provide a reliable and repeatable reading in comparison with GAT across a wide pressure range without hampering corneal health.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0301-4738
1998-3689
DOI:10.4103/ijo.IJO_546_19