ReadEZ Clip-Ons are available in 12 colours (A-L) and two saturations (lightness) making a choice of 24. Simply attach the clip-ons to your glasses whenever you need them. The colours have been carefully chosen by a team of vision experts to provide the optimum saturation (colourfulness) and transmittance (darkness) to minimise the symptoms of Meares-Irlen syndrome.

The lenses are made of CR39 (the same material as most spectacle lenses) and the clip-on fits most types of spectacle frame.