The effect of restricted viewing time on the performance of colour defectives using the City University Colour Vision...

The effect of restricting viewing time to 3.75 ms on the performance of seven red/green colour defectives is studied using the City University Colour Vision Test. One further subject who was screened as colour-defective but not classified on the City plates was studied in the same way and results for this subject are presented separately. The results are compared to those for normal observers who exhibit a tritan-classified defect when viewing time is restricted to 3.75 ms.