Ashton Kutcher made his public appearance on Monday after admitting that he has been suffering a rare autoimmune condition that had rendered him unable to hear, see, or move. Ashton Kutcher’s wife, Mila Kunis, stood beside him during the presentation.

After confessing that he is “fortunate to be alive” after being diagnosed with vasculitis, the actor smiled as he joined Mila at Ping Pong 4 Purpose, a charity event hosted at Dodger Stadium in Los Angeles.

According to the Mayo Clinic, vasculitis is an inflammation of the blood arteries that can cause the walls to thicken and the route to shrink. If blood flow is restricted, the organs and tissues of the body may suffer.

Ashton discussed the debilitating symptoms he suffered as a direct result of his condition in a sneak peek for an upcoming episode of Running Wild with Bear Grylls: The Challenge.

He says in the video broadcast by Access Hollywood, “around two years ago, I developed a weird, exceedingly unique form of vasculitis that entirely ruined my hearing, vision, and hearing abilities.”

In reference to his scary experience with his health, he stated, “It took me almost a year to build it all backup.”

“You don’t realize how much you valued it until it’s gone; I don’t know if I’ll ever be able to see properly again,” Ashton observed. “I consider myself fortunate to be alive.”

After his diagnosis was made public, Ashton commented on his health issue on Twitter. “Before this, there had been a lot of rumors, talk, or whatever you want to call it. Yes, three years ago, I had a peculiar vasculitis episode,” he had written.

“I instantly began having problems with my hearing, vision, and balance once it happened.  My normal self has fully returned. Everything is fine. I’m moving forward.”