CO1-5860R
The HRR Pseudoisochromatic Plates 4th Edition employ a sophisticated test strategy that virtually eliminates the potential for memorization and malingering. The figures used by the plates are independent of language and suitable for both adults and children.
Testing for acquired defects (Tritan) is becoming increasing important in Occupational Testing as the population ages.
Further, toxicity from prescription drugs and industrial solvents and some ocular diseases can be detected by loss of yellow and blue (Tritan) colour vision