Multiple sclerosis: How Jack Osbourne was diagnosed with the disease

Sharon and Ozzy Osbourne's son Jack Osbourne went nearly blind in his right eye before discovering he has multiple sclerosis.

"I couldn't see anything in front of me," Jack, 26, tells People.

He was diagnosed with the degenerative nerve disorder shortly after the birth of his and fiancee Lisa Stelly's daughter, Pearl Clementine, at the end of April. Fortunately for Jack, his vision has improved as he has begun treatment with medication and a healthier diet to reduce his symptoms.

"It's just one of those things you take as it comes," Jack says. "It's all about your outlook."

And his family's outlook is a positive one.  

"Osbournes survive everything. We really do," Sharon says.