49ers’ Kaepernick plans to wear tinted visor vs. Packers, but ...

Colin Kaepernick said he plans to wear a tinted visor in Friday's exhibition game against the Packers. Whether he will be permitted to do so remains to be seen.

Any player who wants to wear a tinted visor in an NFL game, regular season or preseason, must prove it’s medically necessary and must receive approval from the league office. Clear visors are permitted.

"Still working on that," he said Wednesday when asked about permission from the NFL.

A league spokesman said that in cases like this approval would have to be granted by an independent ophthalmologist.

Kaepernick is wearing contact lenses this year to improve his short vision. The visor, which he’s worn all offseason and in training camp, ensures the contacts stay in place and reduces the sunlight that hits his face. The kickoff for Friday’s game is scheduled for 7 p.m. The sun will set at 7:46 p.m.

Defenses might argue that being unable to read an opponent's eyes -- especially a quarterback's -- puts them at a disadvantage. In June, Kaepernick said the visor was needed protect his eyes.

“Been doing a lot of things to make sure my vision’s correct," he said. "So the visor’s been there to help with that.”

This story was originally published August 24, 2016 at 2:57 PM.