Dyslexia Test – Colorimeter

Dyslexia testing with the colorimeter

Andrew and Rogers Optometrists in Beverley have the latest intuitive colorimeter an instrument which is used in the dyslexia test.  It is for designing precision tints used for help with dyslexia.  You can book in for a colorimeter /dyslexia test by phoning on 01482 860362.  The cost of a colorimeter appointment is only £59.00 and we include a reading assessment with and without the tint so we can be confident that the tint is going to really help you out before you commit to buying it.

You will find more information below, but if you don’t enjoy reading and would rather just call us then feel free.

What is Visual Stress?

Simply explained, Visual Stress (Meares-Irlen syndrome) is a sensitivity to visual patterns, particularly stripes.  In some individuals this condition can cause visual perceptual problems which interfere with reading. The symptoms can occur despite normal vision.

One current scientific explanation is that the perceptual problems are due to a hyperactivation of the visual cortex of the brain, particularly in more anterior visual areas, which is reduced by precise individual colour.

The Symptoms of Visual Stress

All or some of the following may be present

 .        Movement of the printed text.

 .        Blurring of print

.        Letters changing size or shape

.        Patterns in the print (sometimes described as rivers or worms)

.        Halos of colour surrounding letters or words

       Tiring easily whilst reading

.        Headaches or visual discomfort

.        Red, sore, watery eyes


dyslexia test, colorimeter, glasses

Dyslexia Test – A child using a pair of colorimeter glasses in a rate of reading test.

The Signs of Visual Stress in Dyslexia

.        Moves closer to or further away from the book

.        Moves book around on the desk

.        Fidgets continuously

.        Using finger as a marker on the page

.        Skips words or lines.

.        Frequently re-reads the same line

.        Rubs eyes or blinks frequently when reading

.        Poor comprehension of reading content

.        Frustration and low self-esteem

Frustration and low self esteem can occur in children who are underachieving due to visual stress. Early diagnosis of the problem is essential. The longer it takes to identify and remedy visual stress, the greater the loss of confidence that can result.

Is this Dyslexia?

‘Dyslexia’ is a term used to refer to reading problems that are not due to poor teaching. Dyslexia is often associated with spelling difficulty.

Visual Stress is NOT the same as dyslexia but is more common in those who are dyslexic. People who fail to read because of visual stress are frequently mis-diagnosed as dyslexic. For this reason it is important that the existence of visual stress is identified at an early stage. Once the visual stress has been treated, the remaining problems are more easily dealt with.

Visual stress can occur in non-dyslexic individuals.  Symptoms may become more apparent when a period of intensive reading is necessary, as when studying for exams.

dyslexia test, lenses, precision tint, colorimeter

Dyslexia test – The selection of coloured lenses for the colorimeter glasses

A Solution 

Visual Stress can be reduced by the use of coloured filters.  A coloured overlay is placed over text or coloured lenses worn in spectacles. It helps most when the colour is selected to suit the individual.  The selection of lenses is best undertaken with the aid of the Intuitive Colorimeter in the dyslexia test.

Coloured overlays are widely used by teachers in schools throughout the UK.  If an overlay proves useful it is likely that precision tinted lenses will be even more beneficial.  Tinted spectacles can be used for writing as well as reading.

It is important to note that the most effective coloured overlay is unlikely have the same colour as the optimal precision lenses.

A full eye examination is necessary before prescribing precision tinted lenses. This procedure is best undertaken by an optometrist who also specializes in colorimetry. Both of our optometrist’s here have expertise in the colorimeter and dyslexia test.

Appropriately tinted lenses frequently result in reading that is more fluent and comfortable. Some lens wearers enjoy significant improvement in both reading rate and accuracy.

The degree of improvement differs: some individuals experience improvements in reading age of one – two years within a few weeks of acquiring the lenses.  In others the lenses may offer greater comfort when reading, but the reading improvement may be less dramatic because of other reading difficulties.





Further information on the lenses used can be found here: http://www.ceriumoptical.com/vistech/background.aspx

colorimeter glasses lenses, dyslexia test

Dyslexia Test Lenses

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