Systematic review of the agreement of tonometers with Goldmann applanation tonometry
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OBJECTIVE: To assess the agreement of tonometers available for clinical practice with the Goldmann applanation tonometer (GAT), the most commonly accepted reference device. DESIGN: A systematic review and meta-analysis of directly comparative studies assessing the agreement of 1 or more tonometers with the reference tonometer (GAT). PARTICIPANTS: A total of 11 582 participants (15 525 eyes) were included. METHODS: Summary 95% limits of agreement (LoA) were produced for each comparison. MAIN OUTCOME MEASURES: Agreement, recordability, and reliability. RESULTS: A total of 102 studies, including 130 paired comparisons, were included, representing 8 tonometers: dynamic contour tonometer, noncontact tonometer (NCT), ocular response analyzer, Ocuton S, handheld applanation tonometer (HAT), rebound tonometer, transpalpebral tonometer, and Tono-Pen. The agreement (95% limits) seemed to vary across tonometers: 0.2 mmHg (-3.8 to 4.3 mmHg) for the NCT to 2.7 mmHg (-4.1 to 9.6 mmHg) for the Ocuton S. The estimated proportion within 2 mmHg of the GAT ranged from 33% (Ocuton S) to 66% and 59% (NCT and HAT, respectively). Substantial inter- and intraobserver variability were observed for all tonometers. CONCLUSIONS: The NCT and HAT seem to achieve a measurement closest to the GAT. However, there was substantial variability in measurements both within and between studies. FINANCIAL DISCLOSURE(S): The author(s) have no proprietary or commercial interest in any materials discussed in this article.
Cook , J A , Botello , A P , Elders , A , Ali , A F , Azuara-Blanco , A , Fraser , C , McCormack , K , Burr , J M & Group() , S O O H S 2012 , ' Systematic review of the agreement of tonometers with Goldmann applanation tonometry ' , Ophthalmology , vol. 119 , no. 8 , pp. 1552-1557 . https://doi.org/10.1016/j.ophtha.2012.02.030
This is the accepted version of an article published in Ophthalmology, © 2012 American Academy of Ophthalmology, available from http://www.sciencedirect.com
DescriptionThis review was part of the Surveillance for Ocular Hypertension study funded by the UK National Institute for Health Research Health Technology Assessment Programme (Project No. 07/46/02).
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