Pronger was skating toward a rebound in his defensive zone as Toronto's Mikhail Grabovski attempted to shoot the loose puck on net. On the follow-through of Grabovski's wrist shot, his stick hit Pronger in the face, causing a cut and vision problems.
According to Flyers general manager Paul Holmgren, "[Pronger] did initially [have trouble seeing], but then [his vision] came back."
Holmgren also said, "he has a little bit of a cut on the outside of his right eye," indicating the lateral portion of the eye socket.
After the stick made contact, Pronger dropped to the ice, shedding his gloves and grabbing his face. He got up immediately, with his left hand covering the right side of his face. He quickly skated off towards the dressing room.
Pronger did not return to the game, which the Flyers won 4-2.
Holmgren said Pronger is "basically on bed rest for the next three days" and is "going to see the eye doctor for the next four days."
Holmgren said the 37-year-old Norris Trophy winner will miss at least the next five games, saying "we're hoping [for Pronger] to be able to rejoin the team within 10 days to two weeks...skating-wise, not necessarily playing."
The injury is a big blow to the Flyers, who had ended a two-game losing streak against the Maple Leafs during the game of the incident.
Pronger missed significant playing time last season, playing in just 50 of the 82 games. He was unable to play in the final three games of the playoffs, as the Flyers were swept by the Boston Bruins.