A sun visor can be opened from a non-used position to an anti-glare position. The visor can be pivoted from a first anti-glare position in front of the windscreen to a second anti-glare position in front of a lateral window of the vehicle. The visor body is guided by a guide device in such a way that in each anti-glare position the same face of the body faces the vehicle interior. The visor body is guided both by a guide rail that is mounted on the roof liner and by an articulated arm that is rotatably mounted on the sun visor body for pivoting from the first anti-glare position to the second. The visor body can also be hinged for pivoting from the first anti-glare position to the second by a pair of articulated arms forming a four-bar mechanism with substantially vertical axes of rotation relative to the roof liner.