Dyslexia Test &Visual Stress Explained

Dyslexia Visual Stress is a condition contributing to reading difficulties, eye strain and headaches when reading in many adults and children.

The condition relates to light sensitivity in disorders such as dyslexia, migraine and epilepsy. It can be responsible for distortions on the printed page.

Distortions include blurring of print, movement of words and letters, fading of print and appearance of patterns in text.

Visual stress can co-exist with Dyslexia. If visual stress is diagnosed then other learning difficulties are easier to cope with. Many people who do not have dyslexia do have visual stress and can benefit from colour treatment. Visual stress can co-exist with Dyslexia.

Classic symptoms are:

  • Words moving on the page.
  • When I read I get a headache.
  • The page is very bright and I cannot see the words properly.
  • Reading hurts my eyes.

Research has shown that an individual colour, worn as Precision tinted lenses, will relieve the symptoms of visual stress and allow more fluent, efficient and comfortable reading.

Visual stress is due to the hyper excitability of the neurons in the visual cortex which fire inappropriately. Research has shown that the neurons in the visual cortex are colour sensitive, and by placing a colour in front of the eye changes the pattern of excitation in the cortical network to avoid hyper excitability thereby reducing visual disturbances. The same theory is also used in the treatment for migraine sufferers. Colour treatment can help to prevent the frequency and severity of migraines.

We can now offer this specialized treatment for visual stress, dyslexia and migraine.

Dyslexia  test – visual stress eye sight pricing

The cost of a VST is £75.00 on top of the routine eye test fee. If the patient is eligible for a free eye test under the NHS regulations, then the total to pay for the VST is only £75.00. For further details please contact a member of staff either on

Dyslexia tests

We can use a colorimeter to find the optimal precision tint to relieve perceptual distortion if you have dyslexia, migraines or photosensitive epilepsy.

An 80 minute appointment (and includes a visual assessment) during which we should be able to determine your exact tint from over 100,000 possible combinations.

Dyslexia and colour vision deficiency

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

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

We can reduce the effects of dyslexia and colour vision deficiency through colour overlay assessment and colorimetry. Both assessments include an eye test, which will take place on a different day.

Colour overlay assessment

If you are uncomfortable, experience headaches or find that text distorts when reading black print on white paper, colour overlays may help you to maintain reading speeds for longer and increase performance in visual search tasks.



What is dyslexia?

Dyslexia is a reading impairment that can result from an abnormal developmental process.

While dyslexia has its core in a disruption of language processing, some believe that it may be a visual disturbance.

Some dyslexics complain that small letters appear to blur and move around when they’re trying to read, leading to research being done in the field of optometry to see if there is a visual component to dyslexia.

What causes Dyslexia?

Most specialists consider dyslexia to be a hereditary, genetic condition. Dyslexia often runs in families. The causes have not been fully established at the moment.
However, dyslexia can be caused by other ways i.e., stroke, serious head injury etc.

What are the Indicators of Dyslexia?

People with dyslexia usually have phonological difficulties (i.e., find it difficult to sort out sounds within words, this means they have problems with reading, writing, spelling, number work, short-term memory, hand control and visual processing. Timekeeping, sense of direction and interpersonal skills can also be affected


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