Universität zu Köln

Rosentreter, Andre, Jablonski, Kerstin S., Mellein, Anne C., Gaki, Stergiani, Hueber, Arno ORCID: 0000-0003-2157-126X and Dietlein, Thomas S. (2011). A new rebound tonometer for home monitoring of intraocular pressure. Graefes Arch. Clin. Exp. Ophthalmol., 249 (11). S. 1713 - 1720. NEW YORK: SPRINGER. ISSN 1435-702X

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Abstract

To compare intraocular pressure (IOP) measurements obtained by the Icare ONE rebound tonometer (RTONE) and the Goldmann applanation tonometer (GAT) in healthy persons and glaucoma patients in a prospective study, and to investigate the influence of central corneal thickness (CCT). Measurements on 126 right eyes were obtained by three equally skilled ophthalmologists with each of the above-mentioned tonometers. In addition, patients measured their own IOP with the RTONE (RTONE(p)). The means and standard deviation for all tonometers were compared. Agreement between the tonometers was calculated using the Bland-Altman method. A total of 95 (75.3%) patients were able to perform correct self-tonometry. Mean IOPs obtained were 17.1 +/- 5.9 mmHg (RTONE performed by ophthalmologist: RTONE (o)), 17.3 +/- 5.6 mmHg (RTONE(p)) and 16.5 +/- 5.1 mmHg (GAT). Correlation analysis indicated a good correlation between IOP readings obtained using RTONE(o) and RTONE(p) (rho = 0.916; p < 0.001) and RTONE(o) and GAT (rho = 0.901; p < 0.001). Bland-Altman analysis revealed a mean difference (bias) between RTONE(o) and RTONE(p), between RTONE(o) and GAT, and between RTONE(p) and GAT of -0.2, 0.6, and 0.8 mmHg, respectively, with 95% limits of agreement of -5.0 to 4.5, -4.4 to 5.6, and -4.6 to 6.1 mmHg, respectively. The difference between RTONE(o) and GAT significantly increased with increasing CCT (rho = 0.004), with a 10% increase in CCT resulting in a 1.8% increase in the difference. Measurements obtained with the RTONE, either by an ophthalmologist or by the patient, showed an excellent correlation with those provided by applanation tonometry. RTONE generally tends to overestimate IOP compared to GAT readings and displays a dependence on CCT. This study was registered with the DRKS (German Clinical Trials Register; www.germanctr.de; DRKS00000478).

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Rosentreter, Andre UNSPECIFIED UNSPECIFIED UNSPECIFIED Jablonski, Kerstin S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mellein, Anne C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gaki, Stergiani UNSPECIFIED UNSPECIFIED UNSPECIFIED Hueber, Arno UNSPECIFIED orcid.org/0000-0003-2157-126X UNSPECIFIED Dietlein, Thomas S. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-486066
DOI:	10.1007/s00417-011-1785-7
Journal or Publication Title:	Graefes Arch. Clin. Exp. Ophthalmol.
Volume:	249
Number:	11
Page Range:	S. 1713 - 1720
Date:	2011
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1435-702X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CENTRAL CORNEAL THICKNESS; GOLDMANN APPLANATION TONOMETER; IN-SITU KERATOMILEUSIS; PORTABLE TONOMETERS; GLAUCOMA PATIENTS; ICARE TONOMETER; CONTACT-LENS; EYES; REPRODUCIBILITY; ACCURACY Multiple languages Ophthalmology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48606