A CHINESE boy is being labelled the world's first X Man after stunning medics with his ability to see in pitch black with eyes that glow in the dark.
Doctors have been monitoring Nong Youhui's amazing eyesight since his dad Ling took him to hospital in Dahua, southern China, concerned over his extraordinary blue eyes.
Ling said: “They told me he would grow out of it and that his eyes would stop glowing and turn black like most Chinese people but they never did.”
Medical tests conducted in complete darkness show Youhui can read perfectly without any light and sees as clearly as most people do during the day.
Nong Youhui's remarkable abilities have so far baffled scientists. James Reynolds, a pediatric ophthalmologist at State University of New York in Buffalo, said for nature to have created a boy that could see in the dark would take multiple mutations over generations.
He added: “Evolutionarily, mutations can result in differences that allow for new environmental niche exploitation. But such mutations are modified over long periods. A functional tapetum in a human would be just as absurd as a human born with wings.”
Instead of a tapetum, Reynolds suggests the boy may just have an especially high number of rods, our photoreceptors that work well in low light.
As for whether any humans can see in infrared, in an isolated, unverified Navy study during WWII, the U.S. Navy fed volunteers an alternative form of vitamin A, a component of photopigments, but deficient in the normal version.
The volunteers supposedly became more sensitive to longer wavelengths, which the Navy hoped would allow them to send infrared signals invisible to the enemy.
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