Authority Glasses

The  are a set of heavily tinted glasses in Fallout: New Vegas. They can be found commonly throughout the Mojave Wasteland. They are frequently worn by NCR Personnel and Praetorian Guard of Caesar's Legion.

Characteristics
Can be repaired with other pairs of themselves or eyeglasses, reading glasses, tinted reading glasses, and sunglasses. The biggest difference from normal sunglasses is the fact they are always blackened out rather than requiring a bright light source to cause them to darken.

Locations

 * Located to the South-East of Nipton is the Old Nuclear Test Site and the Caesar's Legion Safehouse. In between these two areas and northwest of the Old Nuclear Test Site is a small sandbag observation shelter where several sets can be found. There are 5 glasses in total on top of seats and some on the floor. This implies they were being worn by people observing a nuclear explosion, though sunglasses would not prevent eye damage from viewing one directly.
 * Worn by some NCR Rangers (most notably at Ranger Station Echo and Ranger Ghost).
 * Worn by Boone. Can be removed from his inventory after teaming with him (or, probably, by killing him).
 * Can be found on a dead Prospector in The Devil's Throat next to a unique minigun, the CZ57 Avenger.
 * A pair can be found along side a Ranger Grey Hat in the basement of the ruined church at Camp Searchlight on one of the two tables.
 * Another pair can be found in Ruby Hill Mine within the inventory of a dead gang member. The dead gang member also holds the unique melee weapon Pushy

Appearances
The appears in Fallout: New Vegas.

References In Popular Culture
These seem to be a reference to Cartman's comment about respecting his "Authority" while being a deputy in the episode chickenlover (season 2 episode 3). while being a deputy he wears sunglasses.