Philadelphia 76ers All-Star centre Joel Embiid has been diagnosed with Bell's palsy, a form of facial paralysis he says has affected him since before the play-in tournament.

Embiid wore sunglasses to the podium after he scored 50 points in the Sixers' Game 3 win over the New York Knicks and said he's battled various symptoms such as blurred vision and dry eyes.

Embiid said he first started suffering from the affliction about a "day or two" before the Sixers played the Miami Heat on April 17 in the play-in tournament. Embiid had 23 points and 15 rebounds in the win that sent the Sixers to the playoffs.

Embiid complained of migraines but "thought it was nothing" before he finally notified doctors he wasn't feeling well.

"My body was just, I was just not feeling it," he said.

"Yes, it's pretty annoying. My left side of my face, my mouth and my eye. It's been tough. But I'm not a quitter. I'm going to keep fighting through anything. It's unfortunate, that's the way I look at it. But it's not an excuse. I've got to keep pushing."

Last season's NBA MVP, Embiid was 13-of-19 from the floor, made 19 of 21 free throws and hit five three-pointers in Game 3.