Humans
Special glasses give people superhuman colour vision
A pair of spectacles filter light to trick the eyes into seeing colour differently, letting people distinguish between hues that look the same but aren't
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A pair of spectacles filter light to trick the eyes into seeing colour differently, letting people distinguish between hues that look the same but aren't
Medication, meningitis and being struck by lightning have all affected one woman鈥檚 synaesthesia, but remarkably it soon returned in exactly the same form