Evaluation of the Accuracy of Air-puff Tonometer Compared to Goldmann and Schiotz Tonometers among Egyptians.

Purpose: To determine the precision of the air-puff tonometer compared to the Goldmann applanation tonometer (GAT) and Schiotz tonometers. Methods: The study is a descriptive, cross-sectional study that included 410 eyes from 205 primary open-angle glaucoma patients. Intraocular pressure (IOP) was measured with the air-puff tonometer, followed by the GAT, and finally, the Schiotz tonometer. Pachymetry was performed for all patients. Results: IOP was 20.21 ± 3.63 mm Hg for the air-puff tonometer, 18.73 ± 3.41 mm Hg for GAT, and 18.29 ± 3.92 mm Hg for the Schiotz tonometer, and this difference was not statistically significant. In both eyes, the correlation values between GAT and the air-puff tonometer were greater than 0.8, signifying a strong correlation. Additionally, the Bland-Altman analysis revealed greater agreement between the GAT and the air-puff tonometer than with the Schiotz tonometer. Conclusion: We can be confident that the air-puff tonometer provides accurate measurements close to those obtained by the GAT. Therefore, it can be reliably used for diagnosing, screening, and monitoring glaucoma patients, particularly in rural areas and during epidemics. Additionally, the values obtained from the Schiotz tonometer can be trusted, making it a reliable option for patients under general anesthesia or when other tonometers are unavailable. How to cite this article: Khalil KM, Ghoneim EM, Gab-Alla A, et al. Evaluation of the Accuracy of Air-puff Tonometer Compared to Goldmann and Schiotz Tonometers among Egyptians. J Curr Glaucoma Pract 2025;19(2):75-78.