Jack Osbourne: 'My MS Is Unpredictable'
Reality TV star appears on his mum's talk show to discuss his illness...
He said: "Honestly, I'm fine. Ultimately that is the toughest thing with this disease that I'm learning - one minute you can be fine, and the next I went blind in my right eye. It's a completely unpredictable disease.
But Jack revealed that he had since regained 80 per cent of his vision in that eye.
"They don't know if it will ever improve beyond that, but everyone's different. Some people are left with a blind spot, some people's return 100 per cent, some people never even get anything back, so it's hit and miss."
And he said he had been suffering from some of the symptoms of MS for years before he was diagnosed.
He said: "I've been having symptoms for three or four years and not realised it. MS has lots of symptoms - problems with bowels, urination, vision, slurred speech, it sounds like someone is drunk."
Jack revealed this week that he was finally diagnosed with MS after a stunt for a TV show.
But he said he was too busy with new daughter Pearl Clementine to dwell on his illness.
"We don't have much time to be sad because we have a little girl and diapers to change. So we're having fun, we're going to be okay."
And Sharon has also been talking about Jack's illness with rival chat show host Conan O'Brien, telling him: "It's actually been a month and we kept it to ourselves for a month.
"He is actually doing amazing, he is so strong and positive ... my son will conquer!"