Cerium Coloured Overlays are used widely both in the classroom and by vision professionals in practice. Significant improvements in both reading rate and accuracy are common when the optimum overlay is prescribed.
Cerium Overlays are coloured sheets of robust transparent plastic that are placed over a page of text when reading. The overlay assessment packs are used as a screening tool to identify the benefits of working with colour.
The Cerium premium overlay testing set includes the Wilkins Rate of Reading Test, which measures improvements in both reading speed and accuracy with the chosen optimum overlay.
To understand some of the ongoing research into the many benefits of using overlays, as well as tips on everyday use of overlays, more information can be found here