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Abstract #12382 Published in IGR 7-2
Single intraocular pressure measurements and diurnal intraocular pressure profiles
Jonas JB; Budde W; Stroux A; Oberacher-Velten IM; Junemann AAmerican Journal of Ophthalmology 2005; 139: 1136-1137
PURPOSE: To evaluate the probability of a single intraocular pressure measurement to be the highest measurement within a diurnal intraocular pressure profile. DESIGN: Hospital-based clinical, observational study. METHODS: The study included 3,025 day-and-night intraocular pressure profiles measured on 1,072 eyes of 547 Caucasian glaucoma patients or glaucoma suspects. Applanation tonometry was performed at 7 am, noon, 5 pm, 9 pm, and midnight. RESULTS: Intraocular pressure measurements were highest at 7 am, noon, 5 pm, 9 pm, and midnight, respectively, in 20.4%, 17.8%, 21.3% 13.9%, and 26.7% of the profiles, respectively. The measurement taken at 7 am was significantly (P < .001) closest to the maximal value of the profile. CONCLUSIONS: Any single intraocular pressure measurement taken between 7 am and 9 pm has a higher than 75% chance to miss the highest point of a diurnal curve. Intraocular pressure may be measured at different times of the day to have the best chance of observing the maximal value.
Dr. J.B. Jonas, Department of Ophthalmology, Faculty of Clinical Medicine Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany. Jost.Jonas@augen.ma.uni-heidelberg.de
Classification:
6.1 Intraocular pressure measurement; factors affecting IOP (Part of: 6 Clinical examination methods)
