Pupils Equal and Reactive to Light and Accommodation Pupils Equal and Round, Reactive to Light Pupils Equal and Round, Regular in Size, React to Light Pupils Equal Round React to Light Accommodation Pupils Equal, Round, Reactive to Light
PLR is typically measured as direct and consensual responses, which are graded as PERRLA (pupils equal round reactive to light and accommodation) if they are normal. A direct papillary reflex means that the pupil quickly constricts briskly when the light is shone in that eye. This can be ...
The apparently black circular opening in the center of the iris of the eye, through which light passes to the retina. [Middle English, from Old Frenchpupille, from Latinpūpilla,little doll, pupil of the eye (from the tiny image reflected in it); seepupil1.] ...
Pupillary responses indicate the functional state of the afferent (via cranial nerve II) and efferent (via cranial nerve III) pathways and the midbrain tegmentum. The presence of equal, light-reactive pupils indicates an intact reflex pathway. A normal pupillary reaction to light in a comatose...
He developed a fixed dilated right pupil but with the left pupil responsive to light. Oculovestibular responses were normal. He had right extensor posturing. At autopsy, uncal herniation was not found, but there was a diagonally shifted and rotated brainstem likely tethering or compressing the ...
(via cranial nerve II) and efferent (via cranial nerve III) pathways and the midbrain tegmentum. The presence of equal, light-reactive pupils indicates an intact reflex pathway. A normal pupillary reaction to light in a comatose patient usually suggests a metabolic rather than structural cause ...
The normal pupil size in adults varies from2 to 4 mm in diameter in bright light to 4 to 8 mm in the dark. The pupils are generally equal in size. They constrict to direct illumination (direct response) and to illumination of the opposite eye (consensual response). The pupil dilates in...
the second end may be offset from the first end by a spatial length substantially equal to a length of the respective first or second duct structure in the propagation direction. In some examples, at least one of the first end or the second end includes an end reflective coating element. ...
but does not react to light, which is classically described in tertiary syphilis. Near-light dissociation is also seen with Adie tonic pupil syndrome, a benign peripheral neuropathy which, in contrast to the brisk and immediate response of AR pupils, is characterised by a slow and prolonged near...
If all pathways are intact, shining a light in one eye will constrict both pupils at an equal rate and to a similar degree. Pathway of pupillary dilatation (sympathetic) Sympathetic fibres descend from the ipsilateral hypothalamus through the lateral aspect of the brain stem into the spinal cord...