Dyslexia/visual stress Flashcards
Define dyslexia
Learning difficulty affecting reading, writing , info processing/remembering
Signs of dyslexia
Processing speed Poor conc Difficulty following instructions Forgetting words Adding/missing words Fazed out Easily distracted
Diagosis of dyslexia
SENCo
Screening tests
Areas of strengths/weakness to support
Define visual stress
Visual perception difficulties causing reading/writing difficulties
-assoc with dyslexia
Aka pattern-related visual stress
Meares-Irlen syndrome
What did meares-irlen find
Both found that use of coloured overlays helped with reading/writing when due to visual perception difficulties
Visual stress Sx
Letters/words moving Blurring Diplopia Colour illusions ‘ HAs Glare from reading material Eye strain
DDx for visual stress
Uncorrected rx
Oculomotor/BV issues
Visual stress tx
Coloured filters - increase reading rate
WRRT
Has upto 15 repeated words Px to read as much in 60s 4 cards -ABCD A/D - With overlay B/C - w/o overlay
Calculating overlay effectiveness
(Avg with overlays/avg without overlays -1) x 100
Calculating WPM If <60s
(60 x words correctly read)/time taken
Cons of overlays
High level bias in studies
Results similar to placebo effect
Not enough research on long term effects
Not enough evidence
Intuitive colorimeter
More precise than overlays to determine tint
20-30mins
Examines effects of hue, saturation, brightness
Prescribed tint put in specs
