Whilst coloured overlays are a useful tool, they may not offer the best long-term solution. The range of colours is limited, compared with the thousands of colour combinations available from the Intuitive Colorimeter™.
Specific coloured lenses are more suitable for copying from the board or from another book. The colour of the lenses is usually different from the colour chosen as an overlay.
Research has shown that the colour chosen as an overlay may not be the same as the precision colour chosen following assessment using the Intuitive Colorimeter™. Lenses tinted to match a coloured overlay may offer very little benefit.
All precision tinted lenses prescribed by a Cerium vision specialist following a Colorimetry assessment, are tinted at the Cerium special purpose lab, together with any refractive prescription where required. A certificate of authenticity is issued with every pair of lenses.
For more information please refer to the colorimetry protocol.