An essential aid for teachers and vision professionals as the first step in identifying and treating Visual Stress
Cerium coloured overlays are used widely by teachers and optometrists. The teaching profession has been using overlays for the past twenty years and it is estimated that in excess of seventy five percent of schools throughout the UK now use overlays.
The overlay testing sets enable teachers and optometrists to easily carry out an assessment to identify the possible existence of Visual Stress and allow the individual to choose the optimal coloured overlay. The optimal coloured overlay can frequently show greater comfort in reading.
Following successful use of a coloured overlay for a trial period, it is sensible to refer the individual to a vision specialist for a full colorimetry assessment. Precision Tinted Lenses may be prescribed as appropriate.
Although overlays are a very useful tool, Precision Tinted lenses are often more convenient for copying from the board or from another book.
It is important that all children who struggle with reading are tested with coloured overlays. The overlay test should not be restricted to those who are thought to be suffering from dyslexia.
The Wilkins Rate of Reading Test was designed to objectively measure the benefits obtained by individuals who suffer with Visual Stress, viewing text through Cerium Coloured Overlays, and is available to purchase as part of the Premium Overlay Testing Set.
For more information please refer to the colorimetry protocol.