New equipment
Buy now 555 €
ref : 12764
Year of mfg. : 2026
Available
HRR Colour test, laminated – 20 plateThe HRR (Hardy Rand and Rittler)
Contents: 4 demonstration plates, 6 plates for Screening, 14 plates to diagnose color deficiency
New equipment
HRR Color Vision Test – 4th Edition
Manufacturer: Richmond Products (United States)
Model: HRR Pseudoisochromatic Plates – Fourth Edition
The HRR (Hardy-Rand-Rittler) test is an ophthalmic diagnostic device designed to screen for, classify, and assess the severity of color vision abnormalities.
Unlike the Ishihara test, which focuses primarily on red-green color vision deficiencies, the HRR test also detects blue-yellow color vision deficiencies.
Technical Specifications
Product Name: HRR Pseudo-Isochromatic Plates
Edition: 4th edition
Type: Pseudo-isochromatic test
Format: Spiral-bound album
Number of plates: 24
Method: Recognition of colored symbols
Symbols Used Crosses, circles, and triangles
Detected Deficiencies Red-green and blue-yellow
Classification Protan, deutan, and tritan
Assessment Degree of severity of the deficiencies
Use Monocular, one eye at a time
Testing Distance Approximately 75 cm
Lighting Standardized daylight or lighting suitable for color vision testing
Album Contents
Plates Function
4 plates Demonstration and familiarization
6 plates Screening for color vision abnormalities
14 plates Identification and classification of color vision deficiencies
The test distinguishes between mild, moderate, and severe color vision deficiencies.
Key Features
- Detects congenital and acquired color vision deficiencies.
- Suitable for adults and children.
- Can be used with patients who cannot read.
- Quick, non-invasive examination requiring no electronic equipment.
- Scoring sheet and user guide included.
- Available in standard paper or laminated versions.
New equipment
1
Year of mfg.
2026
Available
Checked by OPHTAZON
3
Year of mfg.
-
Available
New equipment
1
Year of mfg.
2026
Available
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