Pupillary light reflex - Wikipedia
The pupillary light reflex (PLR) or photopupillary reflex is a reflex that controls the diameter of the pupil, in response to the intensity (luminance) of light that falls on the retinal ganglion cells of the retina in the back of the eye, thereby assisting in adaptation of vision to various levels of lightness/darkness.
Pupillary Light Reflex - StatPearls - NCBI Bookshelf
2023年7月25日 · Pupillary light reflex is used to assess the brain stem function. Abnormal pupillary light reflex can be found in optic nerve injury, oculomotor nerve damage, brain stem lesions, such as tumors, and medications like barbiturates.
PUPILLARY REFLEXES AND THEIR ABNORMALITIES - Optography
2021年12月14日 · PUPILLARY REFLEXES:-There are all total three pupillary reflexes – Light reflex, Near reflex and Psychosensory reflex. Light Reflex: When light is shone to either of the eyes both the pupil constrict.
Neuroanatomy, Pupillary Light Reflexes and Pathway
2023年8月8日 · Pupillary light reflexes require both optic and oculomotor nerve (cranial nerve III) to constrict pupils upon light exposure. The optic nerve mediates the afferent limb of the pupillary reflex, whereas the oculomotor nerve involves the efferent limb of the reflex.
Reflexes and the Eye - EyeWiki
Pupillary light reflex An autonomic reflex that constricts the pupil in response to light adjusting the amount of light that reaches the retina [2] . Pupillary constriction occurs via innervation of the iris sphincter muscle, which is controlled by the parasympathetic system [2] .
Pupillary reflex - Wikipedia
Pupillary reflex refers to one of the reflexes associated with pupillary function. These include the pupillary light reflex and accommodation reflex. Although the pupillary response, in which the pupil dilates or constricts due to light is not usually called a "reflex", it …
Pupillary Responses - Stanford Medicine 25
When performing a pupillary exam, it sometimes helps to illuminate pupils indirectly from the side, so you can actually see what is happening. Refers to the asymmetric sizes of pupils. Physiologic anisocoria can is very common and a normal variant in up to 20% of the population.
Understanding Causes of Pupillary Light Reflex Loss
2024年9月2日 · The pupillary light reflex (PLR) is a vital physiological mechanism that causes pupil constriction in response to light stimulation. This reflex is critical for maintaining optimal visual acuity and protecting the eye’s sensitive structures.
Pupillary Reflex - an overview | ScienceDirect Topics
Pupillary reflex refers to the regulation of the amount of light entering the eye, controlled by the sympathetic cervical plexus and the oculomotor nerve. AI generated definition based on: Manual Therapy for the Cranial Nerves, 2009
What Is The Pupillary Light Reflex? - Science ABC
2024年6月2日 · The pupillary light reflex is a reflex that controls the diameter of the pupil when it is exposed to varying intensities of light. This allows the eyes to adjust in response to bright or dim lights. Walk into any room and switch on the light; everything seems perfectly in its place.