AN AVERAGING METHOD FOR THE INTERPRETATION OF THE FARNSWORTH‐MUNSELL 100‐HUE TEST—I. CONGENITAL COLOUR VISION DEFECTS

Abstract— A method is described for identifying polarity in Farnsworth‐Munsell 100‐Hue test data. The method is facilitated by the use of a micro‐computer and involves the plotting of “averaged” scores for each cap of the test. Results are presented for 30 protanopes, 30 deuteranopes, 1 tritanope and 2 typical rod monochromats. Analysis of the results shows that the proposed technique is compatible with standard methods of interpreting 100‐Hue plots and is suitable to use when error scores are high and when polarity is difficult to interpret.

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