pupillary reflex


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Related to pupillary reflex: accommodation reflex, white pupillary reflex
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Synonyms for pupillary reflex

reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
riuminiana, it shows that the response of five mice was normal according to their awareness, grooming, corneal reflex, pupillary reflex, gripping strength, skin color, urination, lactation, touch response, pain response, convulsion, tremors, righting reflex, salivation, lacrimation, and hyperactivity.
The absence of pupillary reflex was noted in 71 (93.4%), absence of response to painful stimulus/coma in 70 (92%), absence of spontaneous breathing in 66 (86.8%), absence of corneal reflex in 63 (82.9%), absence of cough reflex in 63 (81.6%), absence of gag reflex in 62 (81.6%), absence of oculovestibular reflex in 59 (77.6%), and absence of oculocephalic reflex in 59 (77.6%; Figure 2).
Literature report that the avian iris is not only involved in pupillary reflex (as in mammals) but also in the reflex of lens accommodation, based on contraction of iris musculature which determine changes in curvature of the lens (Ostrin et al, 2011).
The most common sign of retinoblastoma is a white pupillary reflex, known as leukocoria (Wallach and Balmer, 2006).
ANS Function: Pupillary Reflex. The first study on ANS function in children with AP was carried out by Rubin and colleagues in 1967 [14] and addressed the pupillary reflex which is controlled by parasympathetic (constriction) and sympathetic (dilatation) influences.
Neurological manifestations included abnormal plantar reflex (6), abnormal deep tendon reflexes (10), sluggish pupillary reflex (5), and hypertonia and hypotonia in one case each.
The pupillary reflex can be seen clearly from the pupillary size profile, however.
"The pupillary reflex is very simpleminded, but it seems rather important to show that a transplant can relay a bit of specific, simple-minded behavior,' Lund told SCIENCE NEWS.
Ophthalmologic abnormalities include nystagmus diplopia amaurosis and absence of pupillary reflex.2
Where the patient has a significantly better near pupillary reflex than a light pupillary reflex, this is known as near-light dissociation.
Consensual pupillary reflex causes sharp pain in the covered eye only if iritis is present.
This also provides the opportunity to determine what the pupilary reflex should appear like in the child's particular ethnic group, since the pupillary reflex can vary with the degree of ocular pigmentation (melanin); indeed, this is often a cause for misdiagnosis.