The vampire sees perfectly well in pitch darkness, not requiring a light source to notice details in even the darkest basement or cave. The vampire's Beast is evident in his red glowing eyes, a sight sure to disturb most mortals.
System:
The character must declare his desire to call forth the Eyes. No roll is necessary, but the change requires a full turn to complete. While manifesting the Eyes, the character suffers a +1 difficulty to all Social rolls with mortals unless he takes steps to shield his eyes (sunglasses are the simplest solution).
A vampire without this power who is immersed in total darkness suffers difficulty penalties of +2 to perform most feats. At the Storyteller's option, ranged attacks, extended actions and precision tasks (those requiring more than one success to succeed) cannot be performed successfully at all.