"Parents of children with autism are at higher risk for anxiety and depression," Warner said. "Evan's condition has always been very public and out in the open. It's just not your typical parenting situation."
McCarthy had Evan with her ex-husband, director John Asher. The couple divorced in 2005, after six years of marriage. On "Oprah," McCarthy said her relationship with Asher crumbled, in part, because of Evan's condition.
"I felt very alone in my marriage," she said, adding that Asher removed himself from the research she was doing about treating Evan. "He never sat down and said, 'What did you find out on Google?' There was never that connection of wanting to know and being there."
Earlier this year, McCarthy told Time magazine that thanks to her prayers and a variety of treatments, she believes Evan has overcome autism.
"Evan couldn't talk -- now he talks. Evan couldn't make eye contact -- now he makes eye contact," she said. "Evan was antisocial -- now he makes friends. It was amazing to watch, over the course of doing this, how certain therapies work for certain kids and they completely don't work for others. ... When something didn't work for Evan, I didn't stop. I stopped that treatment, but I didn't stop."
Even so, Caplan believes that Carrey will continue to be a force in McCarthy and her son's life to ensure Evan doesn't feel abandoned.
"They're both going to be there for each other's kids," Caplan said. "A bond was established between Jim and Jenny's son and that's something that's strong, that's real, that's legitimate. It's something that we perceive will continue post breakup."