Deep Vision
( Races of Stone, p. 137)[Psionic]
Your mental focus helps you see farther with darkvision.
Prerequisite
Darkvision,
Benefit
While you are psionically focused, your natural darkvision range increases by 30 feet.
Special
This feat affects only darkvision permanently gained from a creature's race, type, or class, not from impermanent effects such as the darkvision spell or goggles of night.