Sanders suffered the injury on Saturday when he was elbowed in the right eye by Houston Rockets guard James Harden, but the Bucks big man was initially ruled out indefinitely and only through the All-Star break.
It's another run of disappointment for Sanders, who missed 25 games at the beginning of the season because of a torn ligament in his thumb that occurred during a fight at a Milwaukee night club. On the court, Sanders complained of his role under first-year coach Larry Drew early on in the season, and he and Bucks guard Gary Neal had a shouting match in front of media members after a loss to the Phoenix Suns at the beginning of January.
Sanders had come on strongly before his orbital bone injury, recording double-figure rebounding games in the two games prior and scoring 25 points last Wednesday against the Denver Nuggets. He is averaging 7.7 points, 7.2 rebounds and 1.7 blocks per game.
The Bucks signed Sanders to a four-year, $44 million contract this summer.