An essential aid for teachers and vision professionals as the first step in identifying and treating Visual Stress
Overlay testing sets enable teachers and vision professionals to carry out an assessment to identify the possible existence of Visual Stress.
If an overlay proves useful to an individual over a sustained period, referral to a vision specialist for a full colorimetry assessment may be beneficial. Precision Tinted Lenses may be prescribed as appropriate.
For more information please refer to the colorimetry protocol.