Controversial treatment using coloured overlays in visual processing disorders
نویسندگان
چکیده
منابع مشابه
Coloured overlays, text, and texture.
In four studies children were asked to read aloud a passage of randomly ordered common words with and without a coloured sheet of plastic (overlay) placed upon the page. The children's rate of reading increased with the overlay, for some children more than for others. The children were also asked to undertake a test of texture segmentation in which targets consisting of a structured texture had...
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 کاملProlonged use of coloured overlays for classroom reading.
Ninety-three children in a primary school and 59 children in two first-year classes of a secondary school were asked individually to observe a paragraph of random letters arranged to resemble text, and to compare the perceptual effects on its clarity of coloured plastic sheets overlaid on the text. A total of 29 colours were compared using 10 coloured plastic sheets and 19 pairwise combinations...
متن کاملBoth coloured overlays and coloured lenses can improve reading fluency, but their optimal chromaticities differ.
Some individuals read more fluently when the text is coloured: i.e., when coloured sheets of plastic (overlays) are placed upon the page, or when coloured lenses are worn. Overlays provide a surface colour whereas lenses mimic a change in the colour of a light source. The neural mechanisms that underlie colour constancy ensure that the chromaticity of overlays and lenses is processed differentl...
متن کاملDisorders of higher visual processing.
A significant proportion of human cortex is involved in visual processing. Cerebral regions beyond striate cortex show specialization for specific stimulus properties: damage to these regions leads to syndromes that also reflect this specialization. These syndromes can be grouped into two broad categories. In the ventral group, there is damage to medial occipitotemporal structures that particip...
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ژورنال
عنوان ژورنال: Indian Journal of Ophthalmology
سال: 2020
ISSN: 0301-4738
DOI: 10.4103/ijo.ijo_623_20