If you took out this part of your eye, you could see ultraviolet light.

If you took out this part of your eye, you could see ultraviolet light.

You may have heard that digital cameras can be made sensitive to infrared light by removing the IR filter found inside, but did you now that something similar can be done with the human eye?

People who have aphakia, or the absence of the lens on the eye, have reported the ability to see ultraviolet wavelengths.

The lens on a human eye ordinarily filters out UV rays, so we don’t see many of the things certain animals see.

For example, the males and females of some butterfly species look identical to the human eye but very different to UV-sensitive eyes — the males sport bright patterns in order to attract the females!

(Source)

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