Self-Measurement of IOP using a rebound tonometer for patients with glaucoma

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00000478

Enrollment

150

Registered

2010-07-07

Start date

2010-07-12

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

H40.1 H40.0

Interventions

Group 1: Measurements in bothe study groups: 1) Measurement of IOP using the iCare ONE, the iCare, the Pascal and the Goldmann tonometer 2) Pachymetry (corneal thickness measurement) 3) Measurement of

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: study group: patients with glaucoma disease, which want to participate in this study control group: patients without glaucoma, which want to participate in this study

Exclusion criteria

Exclusion criteria: patients, which do not want to participitate in this study patients, which are not able to give their agreement for the study

Design outcomes

Primary

Measure	Time frame
EP: Measurement of intraocular pressure (mmHg) at a particular time using two rebound tonometer (iCare, iCare ONE), measurement with the iCare ONE tonometer is performed by the doctor as well as by the patient. Moreover, measurement of intraocular pressure is done using the Goldmann applanation tonometer and the Pascal contour tonometer. Agreement of the methods is tested by using correlation and Bland-Altman plots. Practicality of the new device (iCare ONE) is tested by uing visual analog scales.	—

Measure

Time frame

EP: Measurement of intraocular pressure (mmHg) at a particular time using two rebound tonometer (iCare, iCare ONE), measurement with the iCare ONE tonometer is performed by the doctor as well as by the patient. Moreover, measurement of intraocular pressure is done using the Goldmann applanation tonometer and the Pascal contour tonometer. Agreement of the methods is tested by using correlation and Bland-Altman plots. Practicality of the new device (iCare ONE) is tested by uing visual analog scales.

—

Secondary

Measure	Time frame
Ability of patients to meausre IOP with the iCare ONE	—

Countries

Germany

Contacts

Public ContactAndré Rosentreter

Zentrum für Augenheilkunde Universität zu Köln

andre.rosentreter@googlemail.com0221-478-4300

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 28, 2026