Results 251 to 260 of about 21,624 (285)
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QUANTITATIVE PUPILLARY LIGHT REFLEX
Archives of Neurology And Psychiatry, 1928The 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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Monocular Blindness With Preserved Pupillary Reflexes
Archives of Neurology, 1985To the Editor. —In their article Lhermitte et al 1 failed to mention the possibility of the most likely cause of monocular failure of light perception with relatively intact pupillary reflexes, namely, a functional elaboration of what presumably was a partial visual loss due to an episode of opticneuritis in this patient.
C, Wertenbaker +2 more
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Archives of Ophthalmology, 1943
In 1939 one of us (Lowenstein1) described a pupillary reflex which he called the "reflex to darkness." In order to elicit this reflex both eyes of the subject tested are adapted to a constant level of illumination in which darkness is a periodic stimulus.
O. LOWENSTEIN, I. GIVNER
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In 1939 one of us (Lowenstein1) described a pupillary reflex which he called the "reflex to darkness." In order to elicit this reflex both eyes of the subject tested are adapted to a constant level of illumination in which darkness is a periodic stimulus.
O. LOWENSTEIN, I. GIVNER
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The pupillary light reflex in migraine
Ophthalmic and Physiological Optics, 2005AbstractThe literature suggests that there may be pupil size and response abnormalities in migraine headache sufferers. We used an infra‐red pupillometer to measure dynamic pupil responses to light in 20 migraine sufferers (during non‐headache periods) and 16 non‐migraine age and gender matched controls. There was a significant increase in the absolute
Deacon E, Harle +2 more
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Diurnal Modulation of Pupillary Light Reflex
Light & Engineering, 2023Pupillary light reflex is mediated by intrinsic photosensitive retinal ganglion cells (ipRGCs) and the midbrain in human brain. The cells ipRGCs are highly sensitive to blue light (~ 480 nm). In this study, we evaluated diurnal changes in chromatic sensitivity of ipRGCs by measuring pupillary light reflex.
Ryuma Senba, Yu Maruyama, Motoharu Takao
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Gamma-Movement and the Pupillary Reflex
The American Journal of Psychology, 1965Bartley distinguished six different kinds of gamma-movement and attributed all of them to a spatio-temporal distribution of the retinal image resulting from differences in reaction-time of rods and cones and differences in intensity of stimulation from the center toward the periphery of the retina.1 He purported to discredit earlier theories which ...
I T, BALDWIN, R W, TINSLEY
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1981
Visual evoked responses and pupillary reflex have been recorded simultaneously with the automatic perimeter PERIMATIC. Results are reported from normal patients and several cases of visual pathway disturbances. These results are compared to the subjective responses obtained with the same instrument.
J. Charlier, J. C. Hache
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Visual evoked responses and pupillary reflex have been recorded simultaneously with the automatic perimeter PERIMATIC. Results are reported from normal patients and several cases of visual pathway disturbances. These results are compared to the subjective responses obtained with the same instrument.
J. Charlier, J. C. Hache
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The pupillary light reflex pathway
Neuro-Ophthalmology, 1997Since 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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Saccadic suppression of the pupillary light reflex
Experimental Neurology, 1966Abstract The visual threshold is known to be elevated by as much as one or two log units just before and during both voluntary and involuntary saccadic eye movements (saccadic suppression). Experiments were carried out to discover whether or not the direct pupillary reflex is suppressed in association with saccadic suppression.
B L, Zuber, L, Stark, M, Lorber
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Pupillary light reflex in borderline diabetes mellitus
Diabetes Research and Clinical Practice, 1989It 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 +3 more
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