pupillary reflex

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Related to Pupil constriction: Pupil dilation

pupillary reflex

[′pyü·pə‚ler·ē ′rē‚fleks]
(physiology)
Contraction of the pupil in response to stimulation of the retina by light. Also known as Whytt's reflex.
Contraction of the pupil on accommodation for close vision, and dilation of the pupil on accommodation for distant vision.
Contraction of the pupil on attempted closure of the eye. Also known as Westphal-Pilcz reflex; Westphal's pupillary reflex.
References in periodicals archive ?
The low-flash intensity of the CR-2 PLUS minimizes pupil constriction and shortens the time required for taking multiple pictures including stereo photography.
M2 PHARMA-April 3, 2015-Omeros unveils first and only US FDA approved Omidria in the nation to prevent pupil constriction and reduce postoperative pain
CR-2 Digital Non-Mydriatic Retinal Camera: With low-flash intensity to minimize pupil constriction, the time required for taking multiple pictures is shortened.
A near accommodative target is then placed in front of the patient and brisk pupil constriction should be observed due to the induced accommodation.