coloured overlay is a transparent coloured sheet of plastic that can be laid over the reading material.

Primarily this is used as a screening tool to determine which patients will benefit from coloured lenses. These overlays are well designed for use at school; they are robust enough to survive general handling and have a matt finish to reduce reflections and create minimal interference with the text before it.

Related Pages

KEYWORDS: coloured overlays ; reading ; dyslexia ; eye test ; poor sight ;