Results 261 to 270 of about 18,366 (304)

Pupillary light reflex in borderline diabetes mellitus

Diabetes Research and Clinical Practice, 1989
It is well known that in diabetes mellitus the early phase insulin release response to glucose becomes blunted. Besides, autonomic neuropathy develops frequently. The autonomic nerve function is related to insulin release in normal subjects. Therefore, in the present study the autonomic function was investigated in different degrees of the early phase ...
N, Kuroda, H, Taniguchi, S, Baba, M, Yamamoto   +3 more
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QUANTITATIVE PUPILLARY LIGHT REFLEX

Archives of Neurology And Psychiatry, 1928
The instrument here presented is one that measures accurately the intensity of light, designated in candle power, and is intended as an aid in determining quantitatively the pupillary response to light. In is an improvement on a similar instrument, containing only a hand battery, which was exhibited to the Section on Ophthalmology of the College of ...
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The pupillary light reflex pathway

Neuro-Ophthalmology, 1997
Since Wernicke1 publicized the matter in the 1880s, it has been considered practically a ‘law of nature’ that the pupillary light reflex pathway is a simple brainstem reflex.
Helmut Wilhelm, Randy H. Kardon
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Adrenergic Mechanisms in the Pupillary Light‐Reflex Path

Acta Physiologica Scandinavica, 1964
AbstractOn the basis of the known effects of reserpine on the eye, the presence of monoaminergic mechanisms in the light‐reflex path of the rat was studied with the use of a fluorescence method for the localization of catecholamines and 5‐hydroxytryptamine at the cellular level.
A, DAHLSTROEM, K, FUXE, N A, HILLARP, T, MALMFORS   +3 more
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Age-dependent pupillary light reflex parameters in children

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012
Pupillary light reflex (PLR) refers to the phenomenon where pupil size changes in response to stimulation with a flash of light. It is a simple functional test that can reveal dysfunctions associated with the PLR pathway. Although abnormal PLR responses have been reported in many neurological disorders, few studies investigated neurodevelopmental ...
Chathuri, Daluwatte, Judith H, Miles, Shawn E, Christ, David Q, Beversdorf, Andrew, Lofgreen, Nathan, Berliner, Gang, Yao   +6 more
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The neuronal pathway subserving the pupillary light reflex

Brain Research, 1978
The pupillary light reflex was investigated using electrical stimulation along the pathway and recording in the short ciliary nerves. The discharge of single units in the ciliary ganglion was compared during diffuse light stimuli and electrical stimuli.
H, Hultborn, K, Mori, N, Tsukahara
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Critical Duration for the Pupillary Light Reflex*

Journal of the Optical Society of America, 1969
Light reflexes of the eye pupil are measured with an infrared scanning pupillometer in response to a 74-deg field. At threshold, the pupillary system responds to stimulus energy for short flashes and stimulus magnitude for long flashes. On a plot of log-flash magnitude vs log-flash duration, the intersection of the constant-energy asymptote and the ...
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Weak gender effects on transient pupillary light reflex

Autonomic Neuroscience, 2009
We investigated the gender effects on transient pupillary light reflex (PLR) in healthy young adults between 18 and 22 years old. Both dark-adapted and light-adapted PLRs were measured using green and red stimuli of different intensities. The results indicate that females had significantly larger relative constriction amplitudes than males in a dark ...
Xiaofei, Fan, Leonard, Hearne, Bo, Lei, Judith H, Miles, Nicole, Takahashi, Gang, Yao   +5 more
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The pupillary light reflex pathway

Neurology, 2008
The anatomy of the human pupillary light reflex (PLR) pathway is a matter of debate. The aim of this study was twofold: namely, to investigate the association of a relative afferent pupillary defect (RAPD) in acquired suprageniculate lesions with the location and extent of the cerebral lesions.
Papageorgiou, E., Ticini, L. F., Hardiess, G., Schaeffel, F., Wiethoelter, H., Mallot, H. A., Bahlo, S., Wilhelm, B., Vonthein, R., Schiefer, U., Karnath, H. O.   +10 more
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Pupillary light reflex in panic disorder

European Archives of Psychiatry and Clinical Neurosciences, 2004
Although many previous studies reported abnormalities of autonomic function in patients with panic disorder (PD), almost all targets in those studies primarily focused on cardiovascular autonomic functions. In the present study, we determined whether PD patients exhibited abnormalities in the pupillary autonomic nervous system (ANS).Before and after ...
Maki, Kojima, Toshiki, Shioiri, Toshihiro, Hosoki, Hideaki, Kitamura, Takehiko, Bando, Toshiyuki, Someya   +5 more
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