8 Blue/Yellow plates, brush, English instructions, score sheet.
This is a subset of the HRR 4th Edition used for testing Tritan only.
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8 Blue/Yellow plates, brush, English instructions, score sheet.
This is a subset of the HRR 4th Edition used for testing Tritan only.
8 Blue/Yellow plates, brush, English instructions, score sheet.
This is a subset of the HRR 4th Edition used for testing Tritan only.
| Brands | Good Lite |
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The lantern has been used since Dean Farnsworth first described it in 1946 for the testing the color signal discrimination ability of color anomalous individuals. This test has found longstanding application in the military and the transportation industry to qualify operators of ships vehicles and aircraft that are known to have failed screening tests such as the Ishihara plates.
Color Vision, screening is now as easy as using your favorite app. The M&S Smart System Tablet (Google Nexus 7) comes pre-installed with ColorCheck Color Vision, application to easily and quickly screen both adults and children. ColorCheck uses Pediatric LEA SYMBOLS® and LEA NUMBERS® to check for protan/deutan/tritan (red/green/blue) color deficiencies. The protocol is completely randomized ensuring accurate results.
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