Comparison of Tono-Pen and Goldmann applanation tonometers for measurement of intraocular pressure in healthy children
| Autor: | Michele Melia, Yasmin S. Bradfield, Michael X. Repka, Brett Kaminski |
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| Rok vydání: | 2012 |
| Předmět: |
Aging
Intraocular pressure medicine.medical_specialty Younger age Adolescent genetic structures Tono pen Anesthesia General Article Cornea Tonometry Ocular Reference Values Ophthalmology medicine Humans Child Intraocular Pressure Extramural business.industry Limits of agreement Infant Newborn Infant Reproducibility of Results Goldmann Applanation Tonometer eye diseases Multicenter study Child Preschool Pediatrics Perinatology and Child Health Normal children sense organs business |
| Zdroj: | Journal of American Association for Pediatric Ophthalmology and Strabismus. 16:242-248 |
| ISSN: | 1091-8531 |
| DOI: | 10.1016/j.jaapos.2011.12.150 |
| Popis: | To assess the agreement of intraocular pressure (IOP) measured with the Tono-Pen and the Goldmann applanation tonometer (GAT) in normal children and adolescents.A total of 439 subjects from birth to18 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.On average, the Tono-Pen measured values slightly lower than the GAT for IOP11 mm Hg and slightly higher than the GAT for IOP11 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 the average difference between instruments were ± 6.4 mm Hg in the office setting and ± 6.8 mm Hg under general anesthesia. Larger differences between instruments were found with younger age. Standard error of measurement with the Tono-Pen was 1.44 mm Hg and 1.82 mm Hg for the office and anesthesia settings, respectively. Thicker corneas were associated with higher IOP with both the GAT and the Tono-Pen.In normal children, average differences between IOP measured by Tono-Pen and GAT were small, although there was substantial test-retest variability. Younger age was associated with larger average differences, as was higher IOP in the office setting. |
| Databáze: | OpenAIRE |
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