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n.1.(Physiol.) An instrument for measuring the size of the pupil of the pupil of the eye.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
In this study, the interexaminer variability in pupillary measurements using the manual examination as compared with a portable automated pupillometer was critically examined and quantified.
Automation of the pupillary assessment using an automated pupillometer (NPi-200; NeurOptics,) offers a potential solution to this important clinical problem.
One promising study has shown that the existence of blindsight in patients with cortical vision loss can often be predicted by observing subtle pupil size changes (as measured using a pupillometer) in response to the presentation of isoluminant gratings in the blind field.
(1) Although physical examination of PLR is the usual method of evaluation, use of a device called a pupillometer offers more diagnostic sensitivity than physical examination alone.
The dilated pupil size was at least 6 mm, measured using a Haab's pupillometer. Standard digital fundus photography for the central fundus was performed for all subjects by the same observer.
Five sows were obtained from different experiment groups on the third day after weaning, the PLR index of every group sow was measured by a new portable pupil detector (NeurOptics PLR200 Pupillometer, NeurOptics Inc., Irvine, CA, USA).
The PLR-200 monocular infrared pupillometer (Neu rOptics; Irvine, California) was used to quantify PLR under mesopic conditions (approximately 3 cd/[m.sup.2]) as previously described [8].
A pupillometer, which was used to measure the diameter of the pupil and the distance between the pupils.
The ID and NPD measurement was performed all the time by the same specialist utilizing the Essilor pupillometer calibrated by long distance.
McLeod, "Interexaminer and intraexaminer reliability of pupil diameter measurement using the colvard pupillometer," Investigative Ophthalmology and Visual Science, vol.
Fazari, Testing the Validity of Pupillometer Technology against Traditional Drug Screening Instruments, 75 FED.
And studies suggest that pupil dilation as measured using a commercially available hand-held pupillometer might provide a good peripheral physiologic correlate of activity going on in the brain structures of therapeutic interest, said Dr.