| Description | HRR 4th edition pseudoisochromatic test from Richmond Products includes the four demonstration plates, the six screener plates and the 14 diagnostic series for a total of 24 plates. Each of these plates has its own tab for easy and clean page | HRR 4th edition pseudoisochromatic test from Richmond Products includes the four demonstration plates, the six screener plates and the 14 diagnostic series for a total of 24 plates. Each of these plates has its own tab for easy and clean page |