Visual factors affecting reading
Pattern Glare Sensitivity. Ability to cope with black lines on white backgrounds (ie text). Also known as Mearles-Irlen or scotopic sensitivity, sufferers have a range of symptoms including losing one’s place, headache, eyestrain, eye fatigue. Some can be extremely sensitive and can lead to great discomfort and thus a lack of interest in reading.
Reducing pattern glare (usually with coloured overlays or precision tints) can have a dramatic effect on reading skills.
Eye Dominance. Unstable eye dominance may cause loss of place. Cross dominance may be a factor in mixing up letters (saw or was) and letter reversals.
Visual Field and Peripheral Awareness. The vision around you and how you integrate information in it with your central vision.
Fusional Reserves. Eye Muscle strength and flexibility.
Visual Centring. Relating where you are in your visual space and relating this with other objects. |
