Universität zu Köln

Termuehlen, Julia, Mihailovic, Natasa, Alnawaiseh, Maged, Dietlein, Thomas S. and Rosentreter, Andre (2016). Accuracy of Measurements With the iCare HOME Rebound Tonometer. J. Glaucoma, 25 (6). S. 533 - 539. PHILADELPHIA: LIPPINCOTT WILLIAMS & WILKINS. ISSN 1536-481X

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Abstract

Purpose: To evaluate the accuracy of intraocular pressure (IOP) measurements obtained with the newly available iCare HOME (RTHOME) rebound tonometer compared with the iCare ONE (RTONE) tonometer and Goldmann applanation tonometry (GAT), and possible correlation with central corneal thickness (CCT). Materials and Methods: IOP measurements were obtained from 154 patients by an ophthalmologist (doc) using each of the above-mentioned tonometers. In addition, patients (pat) measured their own IOP with the RTHOME and RTONE. The means and SD of results obtained with the different tonometers were compared. Agreement between the tonometers was calculated using the Bland-Altman method. Results: Mean IOPs for the right eyes only were 15.9 +/- 6.4 mm Hg (RTONEdoc), 15.8 +/- 6.4 mm Hg (RTONEpat), 15.0 +/- 5.9 mm Hg (RTHOMEdoc), 14.9 +/- 6.3 mm Hg (RTHOMEpat), and 15.8 +/- 4.4 mm Hg (GAT). Bland-Altman analysis revealed mean differences (bias) between RTONEdoc and RTHOMEdoc, between RTHOMEdoc and RTHOMEpat, and between RTHOMEdoc and GAT of 0.8, 0.1, and -0.8 mm Hg, respectively, with 95% limits of agreement of -3.5 to 5.2, -4.9 to 5.1, and -7.2 to 5.6 mm Hg, respectively. Linear regression of the comparisons revealed a proportional error over the range of pressures examined in the case of RTHOMEdoc versus GAT (slope = 0.32, P < 0.001). Considering the data from all eyes, the difference between RTHOMEdoc and GAT correlated significantly with the CCT (P = 0.01). Conclusion: RTHOME readings correlate well with the GAT results although some limitations such as dependency of readings on CCT and increasing differences at lower and higher IOP levels need to be taken into account.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Termuehlen, Julia UNSPECIFIED UNSPECIFIED UNSPECIFIED Mihailovic, Natasa UNSPECIFIED UNSPECIFIED UNSPECIFIED Alnawaiseh, Maged UNSPECIFIED UNSPECIFIED UNSPECIFIED Dietlein, Thomas S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rosentreter, Andre UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-273065
DOI:	10.1097/IJG.0000000000000390
Journal or Publication Title:	J. Glaucoma
Volume:	25
Number:	6
Page Range:	S. 533 - 539
Date:	2016
Publisher:	LIPPINCOTT WILLIAMS & WILKINS
Place of Publication:	PHILADELPHIA
ISSN:	1536-481X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language GOLDMANN APPLANATION TONOMETER; CORNEAL THICKNESS; DYNAMIC CONTOUR Multiple languages Ophthalmology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/27306