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Comparison of measurement of intraocular pressure by ICARE PRO® tonometer and Goldman applanation tonometer


Authors: E. Hladíková 1;  F. Pluháček 1;  K. Marešová 2
Authors‘ workplace: Katedra optiky, Přírodovědecká fakulta Univerzita Palackého, Olomouc vedoucí katedry prof. RNDr. Hradil Zdeněk, CSc. 1;  Oční klinika, Fakultní nemocnice Olomouc, přednosta prof. MUDr. Jiří Řehák, CSc., FEBO 2
Published in: Čes. a slov. Oftal., 70, 2014, No. 3, p. 90-93
Category: Original Article

Overview

The paper compares a concordance in measuring the intraocular pressure (IOP) using two different tonometers, Goldman applanation tonometer (GAT) and ICARE PRO® tonometer. GAT is nowadays considered a standard device for measuring the IOP at the offices of ophthalmologists. Options of the measurements are however limited by necessary installation as well as use of a slit lamp where the evaluation is made subjectively by the examiner. The ICARE PRO® tonometer is a light and mobile device that allows to perform the measurement horizontally as well as vertically. The results are calculated automatically.

The data for the paper was collected by IOP measurements in right and left eye in 45 individuals at the age range of 8–84 years. They were all diagnosed for glaucoma or were suspected to have glaucoma. The measurements were carried out always at the same day time. The acquired data was compared by a double select paired t-test with a significance level p = 0.05 and then analyzed by Bland-Altman method.

There was no statistically important difference (p > 0.26) between the two devices. The average IOP measured by the ICARE PRO® tonometer was 18.19 mm Hg with standard deviation 3.70 mm Hg, whereas the average IOP measured by GAT was 17.94 mm Hg with standard deviation 3.66 mm Hg. It was observed that the difference in the measurements was not related to the IOP.

The results show an acceptable concordance of measurements performed by the two devices. The ICARE PRO® tonometer, in comparison with its predecessor ICARE® TA01 evaluated in the past, shows a much smaller average difference in collected values compared with GAT. Based on the analysis of the collected data it may be stated that measuring the IOP by ICARE PRO® tonometer is clinically acceptable alternative to the use of GAT.

Key words:
intraocular pressure, Goldman applanation tonometer, ICARE PRO® tonometer, rebound tonometry, applanation tonometer


Sources

1. Wessels IF, Oh Y.: Tonometer utilization, accuracy and calibration under field conditions. Arch Ophthalmol, 1990; 108: 1709–1712.

2. Dabasia P.: Contact applanation tonometry. Optician. March 10, 2006; No 6042, vol. 231.

3. Hornová J., Baxant A.: Současné možnosti měření nitroočního tlaku. Čes a slov Oftal, 69; 2013; No. 4: 175–180.

4. Brusini P., Salvetat M. L., Zeppieri M., Tosoni C., Parisi L.: Comparison of I-Care tonometer with goldmann applanation tonometer in glaucoma patients. J Glaukoma, 2006; 15: 213–217.

5. Fernandes P., Díaz-Rey J. A., Queirós A. et al.: Comparison of the ICare® rebound tonometer with the Goldmann tonometer in a normal population. Ophthal Physiol Opt, 2005; 25: 436–440.

6. Nakamura M., Darhad U., Tatsumi Y., et al.: Agreement of rebound tonometer in measuring intraocular pressure with three types of applanation tonometers. Am J Ophthalmol, 2006 Aug; 142(2): 332–4.

7. Kontiola AI.: A new elektromechanical method for measuring intraocular pressure. Doc Ophthalmol, 1997; 93: 265–276.

8. Kontiola AI.: A new induction-based impact method for measuring intraocular pressure. Acta Ophthalmol Scand, 2000; 78: 142–145.

9. Bland JM, Altman DG.: Statistical methods for assessing agreement between two methods of clinical measurement. Lancet, 1986; 1: 307–310.

10. Brencher HL., Kohl P, Reinke AR et at.: Clinical comparison of the airpuff and Goldmann tonometers. J AM Optom Assoc, 1991; 62: 395–402.

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