pupillary reflex


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Related to pupillary reflex: accommodation reflex, white pupillary reflex

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 ?
Features of neurological examination: coma/absent response to painful stimulus, absent pupillary reflex, absent corneal reflex, absent cough reflex, absent gag reflex, absent oculovestibular reflex, and absent oculocephalic reflex.
The eye care practitioner is usually the first to be confronted with concerns of an abnormal pupillary reflex. Although leukocoria is occasionally caused by the reflection of a normal optic disc, its presence should always be taken seriously as it can be a presenting sign of a wide spectrum of intraocular and systemic disease processes.
The variables GCS <8, pupillary reflex and tone were found to be statistically significant (p <0.001).
Her finger-to-nose exam, pupillary reflexes, and extra-ocular movements were normal, but peripheral vision was limited on her left side.
Ceasing the activity of the latter is followed by disappearance of the corneal and pupillary reflexes. The figurative elements of blood and the cardiac monocytes can withstand anoxia even a few hours.
On ocular examination, his visual acuity was 6/6 in both eyes with orthophoria, normal pupillary reflexes and ocular motility.
Pupillary reflexes and extraocular movements (both vertical and horizontal) were intact.
Anterior visual pathways include retina, optic nerves and optic chiasm and the involvement results in moderate to profound visual loss along with impaired colour vision and loss of pupillary reflexes. Posterior visual pathways include optic tracts, lateral geniculate body, optic radiation and occipital cortex.
(9) reported that the latencies of the direct pupillary reflexes were longer when the amblyopic eyes were stimulated.
Preoperative assessment included: Best Corrected Visual Acuity (BCVA) by Snellen test-type, extraocular movements, fixation preferences, pupillary reflexes, slit lamp biomicroscopy of the anterior segment, applanation tonometry, dilated refraction, fundus examination with indirect ophthalmoscope, keratometry (Opposite normal eye was used in case of corneal surface irregularities), intraocular lens power calculation and B-scan was done.