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About the C Test

The C test is a spiral bound book containing pseudoisochromatic plates for tritan contrast measurement, arranged in equal difficulty steps from 1 to 10. It enables an ordinal score based on the last correctly identified plate (C score). It should be administered under bright artificial daylight illumination (ideally 800 Lux) to minimise the effect of blue absorption in the human lens.

Phone: (08) 9374 0620

Fax: (08) 9374 0623

Email: sales@ctest.com.au

Address: 11/53 The Crescent, Midland, WA, 6056

Hours: Mon - Fri 9:00 am - 4:00 pm

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