Ashton Kutcher reveals rare condition that prevented him from seeing

Ashton Kutcher revealed that an autoimmune disease left him unable to see, hear or walk.

“About two years ago, I had this weird, super rare form of vasculitis that disabled my vision, disabled my hearing, disabled my balance,” said Kutcher, 44, in a sneak preview of “Running Wild with Bear Grylls: The Challenge obtained by “Access Hollywood.”

The “That ’70s Show” alum said it took him about a year to rebuild every sense.

Vasculitis is a very rare autoimmune disease that can cause inflammation of the blood vessels, resulting in restricted blood flow, according to the Mayo Clinic. There are many types of vasculitis, but most affect at least one organ.

“You don’t really appreciate it until it’s gone,” Kutcher said. “Until you go, ‘I don’t know if I’ll ever be able to see again, I don’t know if I’ll ever be able to hear again, I don’t know if I’ll ever be able to walk again.’

Ashton Kutcher and Bear Grylls on "On the run."
Kutcher said he is “lucky to be alive”.
National Geographic/Ben Simms

“[I’m] lucky I’m still alive,” he added.

Now fully recovered from his terrifying health anxiety, the “No Strings Attached” actor said he won’t let any challenge get in the way of his path to success.

“The moment you start seeing your obstacles as things made for you, to give you what you need, life starts to get fun, right?” said Kutcher, who shares two children with wife Mila Kunis. “You start surfing on top of your problems instead of living under them.”

The former “Punk’d” host’s episode of “Running Wild” airs Monday at 9 p.m. ET on National Geographic.

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