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The Neurological Pupil index, or NPi, is an algorithm developed by NeurOptics, Inc., that removes subjectivity from the pupillary evaluation. A patient's pupil measurement (including variables such as size, latency, constriction velocity, dilation velocity, etc.) is obtained using a pupillometer, and the measurement is compared against a normative model of pupil reaction to light and ...
Pupillometry, the measurement of pupil size and reactivity, is a key part of the clinical neurological exam for patients with a wide variety of neurological injuries. It is also used in psychology . [ 1 ] [ 2 ]
Pupillary light reflex is tested by having the patient stare into the distance as the examiner shines the penlight obliquely into each pupil. Pupillary constriction is tested for on the eye examined (direct response) and on the opposite eye (consensual response). The swinging flashlight test involves moving the light between the two pupils.
Pupil data can be uploaded to the patient record, eliminating the possibility of data entry errors. The pupil size and reactivity are daily measurements and part of the protocol for critically injured or ill patients. They are essential in the clinical monitoring and neurological assessment of the patient.
Light from a single point of a distant object and light from a single point of a near object being brought to a focus. The accommodation reflex (or accommodation-convergence reflex) is a reflex action of the eye, in response to focusing on a near object, then looking at a distant object (and vice versa), comprising coordinated changes in vergence, lens shape (accommodation) and pupil size.
Pupil (1 C, 4 P) S. Saccade (5 P) Visual system (9 C, 79 P) V. ... Neurological pupil index; O. Obangsaek; Object-based attention; Oblique effect; Ocular dominance ...
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A neurological examination is the assessment of sensory neuron and motor responses, especially reflexes, to determine whether the nervous system is impaired. This typically includes a physical examination and a review of the patient's medical history , [ 1 ] but not deeper investigation such as neuroimaging .