These Merits and Flaws involve perception, or the lack thereof.

Acute Hearing: (1 pt Merit)

You have exceptionally sharp hearing, even for a vampire. The difficulties of all dice roll that relate to hearing (e.g. Perception + Alertness to hear a faint noise, or Perception + Linguistics to overhear a conversation in a foreign language) are decreased by two. Combined with Heightened Senses (Level One Auspex), this Merit can provide superhuman hearing acuity.

Acute Sense of Smell: (1 pt Merit)

You have an exceptionally keen sense of smell. The difficulties of all dice rolls that relate to smell (e.g., Intelligence + Occult to identify a ritual incense) are reduced by two. Combined with Heightened Senses (Level One Auspex), this Merit can provide superhuman olfactory acuity.

Acute Sense of Taste: (1 pt Merit)

You have an exceptionally keen sense of taste. The difficulties of all dice rolls that relate to taste (e.g., Perception + Medicine to spot the taint of poison in blood or another substance ) are reduced by two. You are able to make precise distinctions in taste. Combined with Heightened Senses (Level One Auspex), this Merit can provide superhuman taste acuity.1

Acute Vision: (1 pt Merit)

You have exceptionally keen eyesight. The difficulties of all dice rolls that relate to vision (e.g., a Perception roll to spot a clue, or Perception + Alertness to see the shadow of an approaching attacker) are reduced by one. Combined with Heightened Senses (Level One Auspex), this Merit can provide superhuman visual acuity.

Color Blindness: (1 pt Flaw)

You can only see in black and white. Color means nothing to you, though you are sensitive to color density, which you perceive as shades of gray. This makes it impossible to use the Level Two Auspex power of Aura Perception. Note: color blindness actually indicates an inability to distinguish between two colors, but we fudged a bit for the sake of brevity.

Hard of Hearing: (1 pt Flaw)

Your hearing is defective. The difficulties of all dice rolls related to hearing are increased by two. You may not take Acute Hearing if you take this Flaw.

Bad Sight: (2 pt Flaw)

Your sight is defective. The difficulties of all dice rolls related to vision are increased by two. This Flaw is neither nearsightedness nor farsightedness; it is a minor form of blindness, and is not correctable. You may not take Acute Vision if you take this Flaw.

One Eye: (2 pt Flaw)

You have one eye - choose which, or determine randomly during character creation. You have no peripheral vision on your blind side, and two fewer dice are rolled for any feat requiring depth perception. This includes missile combat.

Deaf: (4 pt Flaw)

You cannot hear sound, and automatically fail any rolls that require hearing.

Blind: (6 pt Flaw)

You automatically fail all dice rolls involving vision. You cannot see-the world of color and light is lost to you.