For many, coloured overlays make reading easier. When the correct colour is placed over reading material there is an immediate reduction in the glare of the white page and the contrast of the black text on white paper. In addition, the pattern of the text and the letters is altered so it no longer triggers perceptual distortions. The result is a page that is easier to look at, and thus easier to read.  


Opticalm carries a wide selection of overlay colours from several suppliers to provide a full range of options to meet our client’s needs.  See our "About Overlays" section for more information.

Crossbow full page overlays: Multi-colour – Pack of 10

Colours: Multi-colour pack (10)
  • Crossbow Education overlays have been formally designed by visual stress specialists and researchers to provide a full range of colours that are evenly spaced around the colour spectrum.


    Stringent testing ensures that the overlays are clear and print clarity is retained. 


    These overlays are moderately saturated so they can be used on their own, doubled for deeper saturation, or paired with neighbouring colours to provide the maximum number of effective combinations.   


    This set contains either ten overlays of the same colour or one overlay of each colour – great for teachers to use in the classroom for students who need to have options when looking for the most effective colour for reducing symptoms. 


    Sets of 10 overlays are available in magenta, pink, orange, yellow, celery, grass, jade, aqua, sky blue, and purple or 10 colour multi-pack. 

Opticalm Visual Stress Clinic

160 Terence Matthews Cres., Suite A1, Main Floor

Kanata ON K2M 0B2

Tel: 613-294-6437

Fax: 613-254-9206

By appointment only

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