Comparative study between The ICare® Rebound Tonometry and Applanation Tonometry

Original article


Abdrahman F M Ben Zaglam 1, Milud S Elaraoud2, Zbigniew Zagorski3, Robert Rejdak3

1- Tripoli Eye Hospital, Tripoli- Libya 2- Almowasat Clinic. Tripoli-Libya 3- 1st Department of Ophthalmology, Medical University of Lublin, Poland

JMJ Vo1.7 No.1 (Spring) 2007:45-47


Purpose: The aim of this study is to compare measurement of intraocular pressure using (ICare) rebound tonometer with the Goldmann applanation tonometer Patients and methods: IOP was measured with the Rebound tonometer (ICare) and the Goldman Applanation Tonometer in 62 normal and Glaucomatous Patients (124 Eyes), aged from 22 – 44 years (47 ± 11.5, Mean ± SD). The ICare tonometer measurements were performed first, then Goldmann applanation tonometry were measured by another person who did not know the ICare tonometer readings. Results: The ICare tonometer measured, on average, 2.19 mmHg higher than the Goldmann tonometer (2.19 ± 1.01 mmHg (mean ± S.D)). The ICare readings were within ± 2 mm Hg of the Applanation tonometer readings in 58 % of eyes. Conclusions: Measurement of IOP with the ICare Rebound tonometer is a rapid, well-tolerated and reliable procedure. However, it tends to overestimate IOP compared with Goldmann applanation tonometry. The main advantage of this tonometer is that it can be used without local anaesthetic and it is good for screening.

Keywords: Intraocular pressure, Rebound, Applanation, Tonometer, Measurement.