Pattern-Related Visual Stress, Chromaticity, and Accommodation
نویسندگان
چکیده
منابع مشابه
Pattern-related visual stress, chromaticity, and accommodation.
PURPOSE To investigate the impact of colored overlays on the accommodative response of individuals, with and without pattern-related visual stress (PRVS), a condition in which individuals manifest symptoms of perceptual distortion and discomfort when viewing a 3-cyc/deg square-wave grating. METHODS Under double-masked conditions, 11 individuals who reported PRVS selected an overlay with a col...
متن کاملA Delphi study to develop practical diagnostic guidelines for visual stress (pattern-related visual stress)
PURPOSE Visual stress (VS) is characterised by symptoms of visual perceptual distortions and eyestrain when viewing text, symptoms that are alleviated by individually prescribed coloured filters. A recent review supports the existence of VS and its treatment, but noted that controversy remains, in part due to inconsistencies in the diagnosis of the condition. The present paper reviews the diagn...
متن کاملIncreased Vulnerability to Pattern-Related Visual Stress in Myalgic Encephalomyelitis.
The objective of this study was to determine vulnerability to pattern-related visual stress in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). A total of 20 ME/CFS patients and 20 matched (age, gender) controls were recruited to the study. Pattern-related visual stress was determined using the Pattern Glare Test. Participants viewed three patterns, the spatial frequencies (SF) of w...
متن کاملAccommodation, pattern glare, and coloured overlays.
We manipulated the accommodative response using positive and negative lenses to study any association between symptoms of pattern glare and accommodation. Two groups of eighteen young adults were selected from seventy-eight on the basis (i) that their rate of reading increased by 5% or more with an overlay compared to their rate without it, and (ii) that they reported more than 2 symptoms of pa...
متن کاملUse of visual search in the assessment of pattern-related visual stress (PRVS) and its alleviation by colored filters.
PURPOSE Visual search measures have been used to evaluate the effects of pattern-related visual stress (PRVS), and its alleviation by colored filters, but tasks and results have varied between studies. Performance on a high-difficulty search task was measured in individuals having low- and high-PRVS susceptibility. METHODS Two PRVS groups (low and high) were formed on the basis of participant...
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ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2010
ISSN: 1552-5783
DOI: 10.1167/iovs.09-5086