FALANTFarnsworth Lantern (color vision test)
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References in periodicals archive ?
The H-W and the FALANT both display nine pairs of red, green and white lights separated vertically (see Figure 1).
(19) The pilot had severe congenital red-green deficiency but had passed an examination with the FALANT. The official accident report ordered a review of colour vision examination procedures and recommended that the FALANT be discontinued.
This criterion passes a higher percentage of colour deficient people than the FALANT and about 50% of those that pass the D15.