All humans can see ultraviolet, however the lens of the eye filters it out - people without a lens see the wavelength

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All humans can see ultraviolet, however the lens of the eye filters it out - people without a lens see the wavelength

People without a lens in their eye are reported to be able to see ultraviolet wavelengths (400 nm - 300 nm) that are normally excluded by the lens. They perceive this light as whitish blue or whitish violet. This is probably because all three of the eye's color receptors are stimulated when a person sees ultraviolet wavelengths (which also happens when a person sees a combination of red, green, and blue light).

Some animals, by contrast, have a fourth color receptor for ultraviolet wavelengths (see tetrachromacy). This might have had an effect on the colors perceived by artist Claude Monet, who had cataract surgery in 1923


Monet http://www.skepticalartist....

From: http://en.wikipedia.org/wik...

Read about the reactions of redditors, some of whom can see ultraviolet and who never realized that people couldn't.

Fascinating ... http://www.reddit.com/r/tod...

MonetsGarden1.jpg - 81.53kb
By netchicken: posted on 23-11-2013








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