Massa says vision problem stopped Schumacher return

Part of the reason for Michael Schumacher calling off his comeback was due to a vision problem, Felipe Massa has revealed in an interview with a Brazilian newspaper.

An article in the O Estado de S.Paulo said Massa, the 28-year-old Ferrari driver, is now basically recovered but that he cannot return yet due to the risk of a secondary head trauma.

Even his vision is nearly back to perfect, the Brazilian said.

"In the first examination my left eye was only 40 out of 100, two weeks after that it was 80 and now we're at 95," he revealed.

Massa also spoke about when Schumacher, Ferrari's preferred substitute, came to visit him recently.

"Michael came and told me about his test at Mugello with the 2007 Ferrari," he said. "He said his neck was hurting him and that he lost a little bit the vision in the curbs because of the vibration.

"He was upset because the doctors said he can not race," Massa added.