The Keeler City University Colour Test is a widely used tool for assessing colour vision deficiencies. This test is designed to identify and differentiate between various types of colour vision anomalies, including protan (red), deutan (green), and tritan (blue) defects. The test is particularly effective in distinguishing red/green colour deficiencies and can also detect significant tritan defects when used alongside the Ishihara test.
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Keeler
A traditional British manufacturer who has been manufacturing top quality precision ophthalmic instruments for 100 years. Keeler craft their precision instruments with the understanding of their customers need for absolute confidence and control.