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Background: A comparison of intraocular pressure (IOP) in cases of infantile glaucoma during general anesthesia was carried out by measurement with the iCare rebound tonometer (RBT) and a handheld applanation tonometer (Perkins). Methods: A total of 45 eyes from pediatric patients with childhood glaucoma were included in this prospective trial. Bland-Altman plots and linear regression were used for statistical analysis. Results: In almost two thirds of the eyes the difference between RBT and Perkins was 2 mmHg or less. A systemic bias of 1.96 mmHg and a 95% confidence interval of -3.35 to 7.26 was detected. Linear regression of the Bland-Altman data showed a proportional error (gradient=0.16; r(2)=0.23; p<0. 01). Conclusions: The iCare rebound tonometer is useful during general anesthesia in cases of childhood glaucoma. It provides comparable IOP values to applanation tonometry with a tendency to record higher values. (copyright) 2010 Springer-Verlag. LA: German
A. Rosentreter. Zentrum fur Augenheilkunde, Universitat zu Koln, Joseph-Stelzmann-Strasse 9, 50931 Koln, Germany. Email: andre.rosentreter@googlemail.com
6.1.1 Devices, techniques (Part of: 6 Clinical examination methods > 6.1 Intraocular pressure measurement; factors affecting IOP)
12.17 Anesthesia (Part of: 12 Surgical treatment)
9.1.2 Juvenile glaucoma (Part of: 9 Clinical forms of glaucomas > 9.1 Developmental glaucomas)