Related Experiment Videos
Exercise and reversed pupillary block in pigmentary glaucoma
P K Jensen1, O Nissen, S V Kessing
1Eye Department, National University Hospital, Copenhagen, Denmark.
American Journal of Ophthalmology
|July 1, 1995
Abstract
Purpose/Methods:
The effect of exercise on the iris contour was investigated with ultrasound biomicroscopy in two patients with pigmentary glaucoma.
Results/Conclusion:
Ten minutes of bicycle exercise strikingly increased the iris concavity. After Nd:YAG laser iridotomy the iris remained plane after a repeated exercise test. We believe that exercise increased the ocular pulse, which augmented cyclic aqueous movements through the pupil. Combined with a reverse pupillary block, the resulting intermittent excessive iris concavity caused pigment dispersion.