This is a report from the Associated Press but obviously it could impact the Vikings given that they will face Arizona on Sunday.

TEMPE, ARIZ. -- Arizona quarterback Kurt Warner says he plans to see an opthamologist about lingering post-concussion symptoms that kept him out of Sunday's 20-17 loss at Tennessee. Warner says he's having hard-to-describe issues with his eyes, a condition he hoped would subside last week but never did. He says the Cardinals medical staff told him before Sunday's game he shouldn't play and he agreed. The decision ended Warner's string of 41 consecutive starts. He sustained the concussion in the second quarter of Arizona's 21-13 victory at St. Louis and didn't play in the second half of that game