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Laboratory, Clinical, and Kindergarten Test of a New Eccentric Infrared Photorefractor (PowerRefractor)
Purpose Photorefraction is a convenient way to determine refractive state from a distance. It is, therefore, useful for measuring infants and noncooperative subjects. However, its reliability (orExpand
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Straylight effects with aging and lens extraction.
PURPOSE To assess possible gains and losses in straylight values among the population to consider straylight as added benefit of lens extraction. DESIGN In this cross-sectional design, data from aExpand
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Pupillographic assessment of sleepiness in sleep-deprived healthy subjects.
Spontaneous pupillary-behavior in darkness provides information about a subject's level of sleepiness. In the present work, pupil measurements in complete darkness and quiet have been recordedExpand
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Visual impairment in stroke patients – a review
Approximately 30% of all stroke patients suffer from post‐stroke visual impairment. Hemianopia is the most common symptom, but also neglect, diplopia, reduced visual acuity, ptosis, anisocoria, andExpand
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Pupil campimetry in patients with visual field loss
Pupil campimetry is an objective test of the visual field. In pupil campimetry, the pupil light response elicited by focal light stimuli at different locations within the visual field is measured.Expand
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Spontaneous fluctuations in pupil size are not triggered by lens accommodation
Fluctuations in pupil size and lens accommodation are measured concurrently under open loop conditions, constant illumination and far fixation. In 12/17 trials no correlation was measured between theExpand
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[Pupillography as an objective attention test].
Infrared video pupillography (IVP) allows continuous recording of spontaneous pupillary oscillations in darkness which change characteristically with fatigue. Pupil size in darkness is age-related,Expand
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[Multiple sclerosis. An update with practical guidelines for ophthalmologists].
Multiple sclerosis (MS) is the most frequent chronic inflammatory disease of the central nervous system. Mostly young adults present with a variety of different symptoms due to the multipleExpand
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A novel clinical syndrome revealing a deficiency of the muscarinic M3 receptor
Objectives: No clinical disorders have been caused by dysfunction of any of the 5 subtypes (M1–M5) of muscarinic receptors. We present a patient with a novel clinical syndrome that we suggest resultsExpand
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[Pupillography for objective vigilance assessment. Methodological problems and possible solutions].
To measure vigilance disorders in healthy normals or in patients (narcolepsy, sleep apnea syndrome) is difficult, time-consuming and hardly objective with present methods. Recording and analysis ofExpand
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