light reflex
Pupil light reflex in the Atlantic brief squid, Lolliguncula brevis
... eye, light passes through a mobile pupil aperture, which typically constricts and centralizes incoming light reaching the graded refractive index ...the light, which is focused on the retina by ...
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Hypersensitive pupillary light reflex in infants at risk for autism
... the reflex arc, the dem- onstration of an altered pupillary light reflex in infants at risk for autism could help narrow the search for bio- logical mechanisms related to the disorder ...the ...
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Real Time Measurement and Processing of Pupillary Light Reflex for Early Detection of Disease
... pupillary light reflex movement (both eyes) and alternating pupillary light reflex movement (one eye) are ...pupillary light reflex test is a method in which light is ...
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Human pupillary light reflex during successive irradiation with 1-ms blue- and green-pulsed light
... pupillary light reflex elicited by a 1-ms pulse of light was prolonged ...to light of lower irradiance light and by ipRGCs under ex- posure to light of higher irradiance [4, 11, ...
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Parasympathetic nervous system dysfunction, as identified by pupil light reflex, and its possible connection to hearing impairment
... between light stimulus onset and start point of constriction) was found to be the most often-used PLR parameter, but not the most sensitive one to PNS dys- ...lower light intensity [85] and older age [86] ...
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Ultrasonic evaluation of pupillary light reflex
... The condition of the iris and its response to stimuli is of interest in a variety of conditions. Reviews on pupillary light reflex (PLR) and its clinical implications have been published [3, 12]. For ...
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Analysis for Extracted Features of Pupil Light Reflex to Chromatic Stimuli in Alzheimer’s Patients
... 1s light pulse and 7s as a restoration ...IR light-emitting diodes (LEDs), two for the left eye (OS)(IR_OS) and two for the right eye ...IR light is reflected by the corneal surface, transmitted by ...
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Pupil light reflex evoked by light emitting diode and computer screen: methodology and association with need for recovery in daily life
... simple light stimuli like the light source required to elicit the ...different light sources (light stimuli generated by LEDs have a narrow visual field, while a computer screen generates a ...
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Association between melanopsin gene polymorphism (I394T) and pupillary light reflex is dependent on light wavelength
... with light-induced melatonin suppression in hu- man beings [42,43], and it has been reported that pupil size is correlated with melatonin suppression ...high-intensity light and short-wavelength ...
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Enhanced pupillary light reflex in infancy is associated with autism diagnosis in toddlerhood
... It has been hypothesized that because the PLR pathway is acetylcholine dependent, PLR atypicalities in ASD could reflect the disruptions of the cholinergic system 10,15 – 17 , which plays a key role in the regulation of ...
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Comparison of ultrasonographic versus infrared pupillary assessment
... analyzes the images in less than 3 s. When placed over the eye, the infrared pupillometer shows a light stimu- lus over the open eye in order to assess for the pupillary light reflex (Fig. 3). The ...
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Multifocal optical systems and pupil dynamics in birds
... monochromatic light of a certain wavelength ...pupillary light reflex are problematic because the iris shades the outer zones of the lens as the pupil constricts ...allow light to pass through ...
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Correlation of Human Fasting Blood Sugar with Grip Muscle Strength and Reflex Response Time
... In his famous book, Sir Charles Sherrington (1857-1952) defined this as “the unit reactions in nervous integration” or “Reflex”. The time taken for this to occur is the “Reflex Response time (RRT)” or ...
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A pilot study on pupillary and cardiovascular changes induced by stereoscopic video movies
... pupillary light reflex is controlled through the arc through the retinal ganglion cells, the pretectum, and the parasympathetic oculomotor ...lary light reflex depend probably on the ...
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Decentration following femtosecond laser small incision lenticule extraction (SMILE) in eyes with high astigmatism and its impact on visual quality
... corneal light reflex (CSCLR) and the visual outcomes, correction efficacy of astigmatism, wavefront aberrations and objective scatter index (OSI) were ...
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Cursor Movement Using Eyeball Motion
... pupillary light reflex is a reflex that controls the diameter of the pupil, in response to the intensity of light that falls on the retina of the eye, thereby assisting in adaptation to ...
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Association between a relative afferent pupillary defect using pupillography and inner retinal atrophy in optic nerve disease
... asymmetrical light reflex of the control subjects and patients with optic nerve disease and to evaluate the relationships among the relative afferent pupillary defect (RAPD), visual acuity (VA), central ...
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Pupillary Dilation by Pediatricians
... appropriate light inten- sity for the direct ophthalmoscope. The full strength light of the ophthalmoscope causes un- wanted pupillary constriction and is not necessary to visualize the red ...pupillary ...
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A Unique Case of Asystole Secondary to Facial Injury
... cardiac reflex: an update of the current knowledge,” Journal of Neurosurgical Anesthesiology, ...“Trigeminocardiac reflex: a clinical phenomenon or a new physiological entity?” Journal of Neurology, ...
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Klystron and Reflex Amplifier.pdf
... The level of modulation applied for transmission is small enough that the power output essentially remains constant. At regions far from the optimum voltage, no oscillations are obtained at all. This tube is called a ...
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