Fallout: New Vegas Traits

General information
Traits modify different aspects of gameplay, including (but not limited to): Primary statistics, derived statistics and skills. With the exception of Wild Wasteland, traits yield one or more benefits, plus an equal number of (offsetting) detriments.

Traits are optional; the player may select up to two (or none at all) during character creation.

Note that you can chose not to get any, Fast Shot and Trigger Disciplines counter-act each other.

Also before choosing the Four Eyes trait one should keep in mind that perks with a perception requirement such as Sniper or Better Criticals will be based off of the player's perception score without glasses.