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the opening in the center of the iris through which light enters the eye; see also Plate 17.
Adie's pupil tonic pupil.
Argyll Robertson pupil one that is miotic and responds to accommodation effort, but not to light.
fixed pupil a pupil that does not react either to light or on convergence, or in accommodation.
Hutchinson's pupil one that is dilated while the other is not.
pupilloplegia/pu·pil·lo·ple·gia/ (pu″pĭ-lo-ple´jah) tonic pupil.
pupilloplegia(pū″pĭ-lō-plē′jē-ă) [″ + plege, stroke]
Slow reaction of the pupil of the eye.
a pupil that responds in a slow delayed fashion to accommodation and convergence stimuli. Called also tonic pupil.