http://www.denverbroncos.com/page.php?id=334&storyID=4269Jake Gibbons; Gunnison
In a May Q&A, Pat McPherson said that the modern safety can't be looked off as easily these days because they key on the quarterback's eyes. Is there a rule about covering those eyes with a visor like some of our running backs have worn in the past? Or, does that hinder the quarterbacks vision too much?
Any player who chooses to wear a clear visor can do so, but that wouldn’t help the quarterback at all. If a player chooses to wear a tinted visor, they must be approved by the NFL after providing a considerable amount of medical proof that they need one which our head trainer handles with his medical staff. Needless to say, that is why you don’t see too many guys, especially quarterbacks, with a tinted visor.