Tonic pupil in right eye

The typical features of a tonic pupil are seen in the right eye. The photos were made with a prism to bring the eyes closer together. Pupil size asymmetry (anisocoria) is greater in light, particularly in bright light. The tonic right pupil constricts poorly to light and better to near (light-near dissociation). The tonic pupil also demonstrates denervation supersensitivity to low-dose pilocarpine by constricting better than the fellow left pupil.