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Related to daltonian: Daltonism, daltonic


1. Attributed to or described by John Dalton.
2. Pertaining to daltonism.
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23) The errors made by daltonians were also evident in a field study, (24) which also found that protan observers failed to see distant red signals more frequently than observers with normal colour vision, and in a laboratory simulation.
The X-Chrom lens and the ChromaGen lens system are two commercially available coloured filters that have been prescribed to improve the colour vision of daltonians.
67) It has generally been agreed that this lens is not a cure for colour vision deficiencies, but opinions vary on its ability to improve the colour discrimination of daltonians.