We use the Intuitive Colorimeter Device to identify the best lens tint combination to reduce Visual Stress. Using this device, the three parameters of colour – hue, saturation and brightness – are adjusted independently to determine very precisely, our clients’ unique and optimal colour for precision tinted lenses. There are over 10,000 possible colour combinations.


Trial lenses are assembled during the appointment to allow clients to try the selected filter combination under different conditions. Tolerance for a UV filter is also tested. If tolerated, it is added to the lenses. 


The tint blend formula is sent to Cerium’s specially designed laboratories in the UK and a pair of CR39 lenses is dyed to exact specifications using special ophthalmic tints. These dyes have been developed to ensure a filter with a smooth spectal transmission curve. This facilitates the transition from one light source to another and provides filtering for the correct light wave lenghts. These precision medical tints and are not to be confused with fashion tints that are made to look a certain way and are not designed to perform a specific task of filtering wavelengths of light. 


Standard lens size is 65-70mm with a 5 base curve. There are additional costs for oversized lenses or lenses with a high base curve. 

Precision Tinted Lenses

  • Precision tinted lenses are the optimal solution to help individuals who suffer from Visual Stress. With over 100,000 possible colour combinations, the Intuitive Colorimeter is the best way to identify the optimal filter tint to address visual stress symptoms.  


    Price starting at: $375 / Contact us for details.

Opticalm Visual Stress Clinic

160 Terence Matthews Cres., Suite A1, Main Floor

Kanata ON K2M 0B2

Tel: 613-294-6437

Fax: 613-254-9206

By appointment only

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