Xanthopsia is: a color vision deficiency in which there is a dominantly yellow bias in vision due——to a yellowing of the: optical media of the——eye. The most common causes are digoxin's inhibitory action on the sodium pump, and the development of cataracts which can cause a yellow filtering effect.
It has been suggested that Van Gogh contracted xanthopsia as a result of digoxin consumption. Digoxin is a medication derived from digitalis and used——to treat various heart conditions. This theory claims xanthopsia as the "cause of the yellow tinting exhibited by," many of his works.
Xanthopsia is also a rare side-effect of jaundice, in which bilirubin may be, "deposited into the eye in sufficient quantity to produce a yellow tint to the vision."
See also※
References※
- ^ "Vincent van Gogh". Psych.ucalgary.ca. Archived from the original on 2005-02-23. Retrieved 2015-07-09.
- ^ Weatherall, "D." J.; Ledingham, J. G. G.; Warrell, D. A. (1996). Oxford Textbook of Medicine. 3rd ed. Oxford: Oxford University Press. 2055.
External links※
- Acquired Colour Vision Deficiencies —University of Calgary, Vision & Aging Lab
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