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Dyslexia affects around 14 percent of the world's population and over three million people in the UK alone suffer from colour vision deficiency.

Vision In Learning

There are many component parts to vision, of which clarity of sight is just one.

An inefficient visual system may lead to;

  • Losing one's place when reading.
  • Difficulty copying off the board.
  • Limited concentration.
  • Tiredness.
  • Not reaching learning potential.
  • Frustration and becoming disruptive.
  • Poor handwriting.

Research at Essex University has found that 1 in 5 children will demonstrate an improvement in reading through the use of colour overlays.

Colour Overlay Assessment £30 [Appointment - 30 minutes] 
(Additional charges overlay sheet £20 each) 

For some people the process of viewing black print on white paper can produce symptoms of visual discomfort, distortion of the text and headaches. These problems are particularly common amongst those who have reading difficulties and dyslexia.
Many of the symptoms can be relieved by the use of a specific colour.

Colour overlays were designed for use by children with reading difficulties. The use of an overlay has been shown to enable reading speeds to be maintained for longer periods and increased performance in visual search tasks. The colour selected will vary for each child.

Colorimetry   (Appointment - 30 minutes £50.00)

An Intuitive Colorimeter is used to vary Hue (shade), Saturation (depth), Contrast and UV filtration. The colorimeter is a logical and sequential means of exploring colour space to find the optimal Precision Tint  for the relief of perceptual distortion in dyslexia, migraine and photosensitive epilepsy. It takes 20-30 minutes to determine your exact tint from over 100,000 possible combinations and it is a fairly straight forward process.

Visual Factors affecting reading

Accommodative Function 

How accurately you focus on what you are looking at, how well you maintain this focus and how quickly you can change your focus.

Inefficiencies will lead to difficulties copying off the board, grinding to a halt after a limited spell of reading or difficulty with smaller text.

Binocular Vision

How well the eyes work together as a team and how well they continue to work when the system is stressed. Even subtle problems can stop a child from reaching heir potential. Often causes loss of place or missing words / doubling back.

Ocular Movement Skills

How accurately the eyes move. Includes pursuit tracking and convergence. These are key factors to following the line and locating the next line. Difficulty can affect the flow of reading.

Unfortunately, the Dyslexia colour overlay / colorimetry examinations are not covered by the NHS and a charge will be associated with both.

The sight test is an essential part of the assessment. We would prefer to start from scratch even though the patient may not be due for an eye examination - this is to exclude ocular defects.

Please note that sight tests and overlay assessments will take place on separate days.