| 单词 |
protanopia |
| 释义 |
protanopia Ophthalm.|prəʊtəˈnəʊpɪə|
[mod.L., f. prec. + -ia1.]
A form of dichromatic colour-blindness marked by an insensitivity to red and an inability to distinguish between red, yellow, and green hues.
1902J. M. Baldwin Dict. Philos. & Psychol. II. 371/1 In..the so-called red-blindness, the red end of the spectrum is shortened, and the maximum brightness is further towards the green (protanopia). 1923L. C. Martin Colour x. 146 In complete protanopia or deuteranopia we have the spectrum consisting (broadly speaking) of two parts of differing hue separated by a grey or white. 1950Jrnl. Optical Soc. Amer. XL. 46/2 If the scores at either + 5 or - 5 are incorrect the subject has complete red-green color deficiency, i.e. either protanopia or deuteranopia. 1974Ophthalmic Res. VI. 281 Colour discrimination as tested with the Ishihara plates and Nagel anomaloscope..was typical for protanopia.
Hence protaˈnopic a.
1908Psychol. Bull. V. 298 Certain individuals..make their mixtures much redder, and other individuals much greener than the average. Here again we must distinguish between a protanopic and a deuteranopic sub-type. Investigations since Rayleigh's pioneer publication have shown that the former sub-type is much more numerous than the latter. 1973Vision Res. XIII. 1762 The reduction in gradient of the deuteranopic isochromatic line through the blue-green and purple region suggests an explanation of why some deuteranopes cannot distinguish either the protanopic or the deuteranopic diagnostic figures in the Ishihara test. |
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