Doctors say it is too early to judge whether Felipe Massa will race again after it was revealed on Monday that the Brazilian suffered damage to his left eye in his Hungarian Grand Prix crash.
Massa is still in hospital recovering from a skull fracture and concussion after he was hit in the face by a spring from Rubens Barrichello's car.
Local media quoted the hospital's professor Robert Veres from Budapest as saying that the eye injury could be enough to end Massa's F1 career.
"He has suffered some damage to the eye," said Veres. "We don't know whether he'll be able to race again."
The AEK hospital in Budapest is scheduled to hold a press conference this evening to update the media on Massa's injuries.
The spring struck Massa just above his left eye, smashing his helmet and fracturing his skull.
Doctors also confirmed on Monday that the operation that was conducted on Saturday afternoon saved Massa's life.
Ferrari president Luca di Montezemolo visited Massa in hospital on Monday.
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