Which colour overlay do I need?

It is recommended that you consult a suitably-qualified professional to test for Visual Stress and determine which colour overlay may be best for you (if any).

However, you can perform a quick check on the screen by following the simple instructions below:

  • No background

  • Overlay A

  • Overlay B

  • Overlay C

  • Overlay D

  • Overlay E

  • Overlay F

  • Overlay G

  • Overlay H

  • Overlay I

  • Overlay J

  • Overlay K

  • Overlay L

What colour overlay do I need?

  1. Select the text with a white background and click on it.
  2. Read through the words for about 1 minute – they do not make sense!
  3. Do the words appear to move, wobble or flicker or can you see strange patterns in the words?
  4. If you experience any of these symptoms, try each of the overlay colours in turn and see if the symptoms are reduced by any particular colour
  5. Narrow down your choice to one overlay colour
  6. Click on i next to the thumbnail to show the Overlay letter

Please note: the screen colours may differ slightly from the actual overlay colours supplied due to variations in the colour reproduction of different computer displays

Found the right colour?

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