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HRR Pseudo-Isochromatic Color Vision Test, 24 plates

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SKU: 9332 Category:


4th edition. The HRR (Hardy, Rand and Rittler) plates provide testing for congenital and acquired color vision defects (blue-yellow and red-green defects).

4 demonstration plates, 20 test plates, instruction card and a laminated score card to make copies.