GA| Monikko | pupils |
(anatomy) The hole in the middle of the iris of the eye, through which light passes to be focused on the retina.
Cross-section of the human eye, showing the position of the pupil.
(anatomy) The hole in the middle of the iris of the eye, through which light passes to be focused on the retina.
The pupil diameter can vary greatly due to various factors (primarily the pupillary light reflex), from constriction to as small as 2 mm, to dilation larger than 8 mm in some individuals, though the maximal dilation also varies substantially by individual and decreases with age