Comparison of intraocular pressure measurements with different contact tonometers in young healthy persons

Autor: Saulius Galgauskas, Rasa Strupaite, Ernesta Strelkauskaite, Rimvydas Asoklis
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: International Journal of Ophthalmology, Vol 9, Iss 1, Pp 76-80 (2016)
Druh dokumentu: article
ISSN: 2222-3959
2227-4898
DOI: 10.18240/ijo.2016.01.13
Popis: AIM: To analyze the correlation of Goldmann applanation tonometer (GAT), I-Care tonometer and Tono-Pen tonometer results in young healthy persons, and to investigate the influence of central corneal thickness (CCT) on intraocular pressure (IOP) measurements recorded with these tonometers. METHODS: We conducted a pilot clinical study in 78 eyes of 78 subjects aged 22-28 years old (44 women and 34 men; mean age 23.8±1.19y). IOP was measured using GAT, I-Care and Tono-Pen tonometers, followed by measurements of CCT. Statistical analysis was performed using SPSS 20.0. RESULTS: The mean IOPs and standard deviation (±SD) for GAT, I-Care and Tono-Pen were 15.62±2.281 mm Hg, 16.29±2.726 mm Hg and 16.32±2.393 mm Hg, respectively. The mean CCT was 555.15±29.648 μm. Clear positive correlations between GAT and I-Care, GAT and Tono-Pen, and I-Care and Tono-Pen tonometers were found (r=0.867, P0.05). Both non-gold standard tonometers were affected by CCT; that is, both I-Care and Tono-Pen tonometer values were significantly higher with higher CCT means (>555 μm; MD=−1.282, P555 μm) were associated with overestimated IOP values.
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