Comparison of Tono-Pen and Goldmann applanation tonometers for measurement of intraocular pressure in healthy children.

ABSTRACT:

Purpose

To assess the agreement of intraocular pressure (IOP) measured with the Tono-Pen and the Goldmann applanation tonometer (GAT) in normal children and adolescents.

Methods

A total of 439 subjects from birth to <18 years of age without anterior segment anomalies or glaucoma had their IOP measured with the two instruments by separate, masked examiners in the office or under general anesthesia.

Results

On average, the Tono-Pen measured values slightly lower than the GAT for IOP <11 mm Hg and slightly higher than the GAT for IOP >11 mm Hg in the office setting. Using the average of GAT and Tono-Pen IOPs to estimate the true IOP, the average difference (GAT - Tono-Pen) was 0.4 mm Hg at IOP of 10 mm Hg and -3.0 mm Hg at IOP of 20 mm Hg. The 95% limits of agreement on

SUBMITTER: Bradfield YS 

PROVIDER: S-EPMC3428123 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature