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Abstract #9179 Published in IGR 5-2
Effect of exercise on intraocular pressure and pulsatile ocular blood flow in a young normal population
Price EL; Gray LS; Humphries L; Zweig C; Button NFOptometry and Vision Science 2003; 80: 460-466
PURPOSE: The hypotensive effect of exercise on intraocular pressure (IOP) is well documented, however, little is known about the effect of exercise on pulsatile ocular blood flow. This study examines this effect and follows the recovery of IOP and pulsatile ocular blood flow after a standard exercise period. METHODS: Eighteen visually normal subjects participated in a four-minute period of bicycle ergometry. IOP and pulsatile ocular blood flow were measured by pneumotonometry before, immediately after exercise, and at regular intervals during the recovery period. RESULTS: IOP was found to decrease significantly with strenuous exercise and recovered gradually toward baseline over a period of 30 minutes. Pulsatile ocular blood flow increased significantly immediately after exercise then returned to baseline levels between five and ten minutes after stopping exercise. CONCLUSIONS: This study confirms the hypotensive effect of exercise on IOP, and shows that exercise significantly increases pulsatile ocular blood flow.
Dr. E.L. Price, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, Scotland, UK. e.price@gcal.ac.uk
Classification:
6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)
