Dynamic Contour Tonometry for Intraocular Pressure Measurement - 18/08/11
, Jost B. Jonas, MD
Inquires to Dr. B. Kamppeter, Universitäts-Augenklinik, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany; fax: 49-621-383-3803Résumé |
Purpose |
To compare dynamic contour tonometry as a new method for intraocular pressure measurement with Goldmann applanation tonometry.
Design |
Clinical observational study.
Methods |
The study included 176 eyes of 126 subjects (39 eyes with open-angle glaucoma, 137 normal eyes) and consisted of 528 dynamic contour measurements and 352 Goldmann tonometry measurements. Corneal pachymetry measurements were additionally performed.
Results |
Mean dynamic contour tonometric measurements (18.71 ± 5.90 mm Hg) were significantly (P < .001) higher than mean applanation tonometric values (16.98 ± 5.86 mm Hg), correlating significantly with each other (r2 = .905, P < .001). The slope of the regression line was 0.95. Correlation with central corneal thickness was significant for applanation tonometry (P = .036), while dynamic contour tonometry was statistically independent of corneal thickness (P = .32).
Conclusions |
For measurement of intraocular pressure, dynamic contour tonometry may offer a new technology, which, compared with applanation tonometry, may show a lower dependence on central corneal thickness.
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Vol 140 - N° 2
P. 318-320 - août 2005 Retour au numéro
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