Variability of Heidelberg Retina Tomograph parameters during exercise

• Published in: Acta ophthalmologica (Oxford, England) England), 2013-02, Vol.91 (1), p.32-36
• Main Authors: Saarela, Ville, Ahvenvaara, Elina, Tuulonen, Anja
• Format: Article
• Language: English
• Subjects: Adult; Blood pressure; Blood Pressure - physiology; Diagnostic Techniques, Ophthalmological - instrumentation; Diagnostic Techniques, Ophthalmological - standards; exercise; Exercise - physiology; Female; Glaucoma; Heart Rate - physiology; Heidelberg Retina Tomograph; Humans; Intraocular Pressure - physiology; Male; Ophthalmology; optic disc; Optic Disk - anatomy & histology; Reproducibility of Results; Retina; Tomography; variability; Young Adult
• ISSN: 1755-375X; 1755-3768
• DOI: 10.1111/j.1755-3768.2011.02254.x

. Purpose:  The purpose of this study was to determine whether exercise affects the stereometric parameters representing optic nerve head (ONH) topography. Methods:  ONH topography, intraocular pressure (IOP) and blood pressure of 30 healthy volunteers were monitored before, during and after dynamic exercise raising systolic blood pressure by a minimum of 30 mmHg. Change in the stereometric ONH parameters was calculated. Results:  IOP decreased and blood pressure increased during exercise, resulting in an increase in mean ocular perfusion pressure. Exercise was associated with an increase in variance in 17 of the 18 stereometric ONH parameters. The increase in variance was statistically significant in eight parameters, including rim area, cup/disc area ratio and cup shape measure. There was no statistically significant change in image quality. The absolute change from baseline in rim area, cup area, cup/disc area ratio, rim/disc area ratio and rim volume showed a statistically significant (p