Visual Contrast Sensitivity: Response
نویسندگان
چکیده
منابع مشابه
Knowledge alters visual contrast sensitivity.
Research has shown that the visual system's sensitivity to variations in luminance (visual contrast) within a particular area of the retina is affected in a bottom-up fashion by the ambient contrast levels in nearby regions. Specifically, changes in the ambient contrast in areas surrounding the target area alter the sensitivity to visual contrast within the target area. More recent research has...
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The influence of stimulus orientation on contrast sensitivity function was studied in 10 patients with drug-induced Parkinsonism. Nine of the 10 patients had at least one eye with contrast sensitivity deficit for vertical and/or horizontal stimuli. Only generalised contrast sensitivity loss, observed in two eyes, was stimulus orientation independent. All spatial frequency-selective contrast def...
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In “Possible Estuary-Associated Syndrome: Symptoms, Vision, and Treatment,” Shoemaker and Hudnell (1) advocated use of the visual contrast sensitivity (VCS) test as a biomarker to diagnose possible estuaryassociated syndrome (PEAS) and to assess response to their proposed treatment regimen. However, the use of VCS as a diagnostic test for PEAS (and subsequent treatment of PEAS with cholestyrami...
متن کاملevaluation of contrast sensitivity, color vision and visual acuity in patients with and without diabetes
purpose : to investigate the discriminative ability of contrast sensitivity (cs), color vision and best corrected visual acuity (bcva) in detecting functional losses in diabetic participants with and without retinopathy methods : in this cross sectional study we examined 105 patients in khatam-al-anbia eye hospital of mashhad university of medical sciences including 70 diabetic patients (35 wit...
متن کاملeffect of occlusion therapy on visual acuity, contrast sensitivity and stereopsis in amblyopia
purpose: to determine the effect of occluding a normal eye on visual acuity, contrast sensitivity and stereopsis in amblyopic school children. methods: amblyopic children from primary schools of region 2 in mashhad were identified and referred to optometry clinics of mashhad medical university through a screening program. informed consent was obtained from the parents. all subjects underwent an...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 2002
ISSN: 0091-6765
DOI: 10.1289/ehp.110-a121