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Abstract #12371 Published in IGR 7-2
Intraocular pressure over the clinical range of blood pressure: blue mountains eye study findings
Mitchell P; Lee AJ; Wang JJ; Rochtchina EAmerican Journal of Ophthalmology 2005; 140: 131-132
See also comment(s) by Selim Orgül •
PURPOSE: To quantify the relation of blood pressure (BP) and intraocular pressure (IOP) across the clinical range of BP in an older phakic population not using glaucoma medications. DESIGN: Cross-sectional population-based study METHODS: Seated BP and applanation IOP were measured, and their relation was assessed in regression models. RESULTS: Mean IOP of the two eyes increased linearly from 14.3 mmHg for systolic BP < 110 mmHg to 17.7 mmHg for systolic BP ≥ 200 mmHg, a 3.4-mmHg excursion over this range. Mean IOP also increased from 15.2 mmHg for diastolic BP < 70 to 18.4 mmHg for diastolic BP ≥ 120, a similar variance. There were no changes after age and multivariate adjustments for IOP or after excluding undiagnosed glaucoma cases. CONCLUSION: A 3-mm linear IOP increase over the clinical spectrum of BP levels was evident; this variance is greater than with most other systemic and ocular parameters.
Dr. P. Mitchell, Department of Ophthalmology, University of Sydney, Sydney, Australia. paul_mitchell@wmi.usyd.edu.au
Classification:
6.1 Intraocular pressure measurement; factors affecting IOP (Part of: 6 Clinical examination methods)
