Increased pupil constriction with lens accommodation (VIDEO)
Caption
Movie demonstrating the increase in accommodative eye vergence and pupil constriction when the fixating eye (left side of image, right eye of subject) is exposed to -5D defocus. The occluded eye (right side of image, left eye of subject) turns inward as if the stimulus was approaching the subject and the pupils constrict in both eyes. Both eyes are visible in the movie because they are both being recorded with Tobii glasses. When defocus is perceived by the fixating eye, the accommodation power of the crystalline lens increases to focus the stimulus. This increase in accommodation is accompanied by an increase in eye vergence and pupil constriction.
Credit
Alonso Lab at SUNY Optometry
Usage Restrictions
Unrestricted use with citation.
License
Original content