PHILADELPHIA -- Phillies center fielder Aaron Rowand left Friday night's game against the Braves with blurred vision in his right eye.

Rowand started the game and struck out in the first inning, swinging and missing badly at a Chuck James changeup in the first inning. He was replaced by Chris Roberson for the start of the second inning.

The team isn't sure how long Rowand will be out. He will have an examination on Saturday at Wills Eye Hospital. Rowand had mentioned an issue to teammates before the game.

"He came out for early [batting practice], and had to come back in because his right eye was blurry," third baseman Wes Helms said. "He came back and took a few more swings, and we didn't think anything of it."

Watching Rowand's at-bat from the on-deck circle, Helms saw Rowand's miss and thought James' changeup was particularly devastating.

"Then he came out and I was like, 'Maybe he just couldn't see,'" Helms said. "Hopefully, it's just something tonight and he'll be ready [to play Saturday night]."

Rowand is having a career year for the Phillies, hitting .316 with 18 homers and 65 RBIs. He has played in all of Philadelphia's 114 games this season.