Condition — Blinded

You cannot see. All normal terrain is difficult terrain to you. You can't detect anything using vision.

Mechanical Effects:

• All creatures and objects are concealed to you, requiring a DC 5 flat check to target them with attacks, spells, or other targeted effects
• You are off-guard (formerly flat-footed) — -2 circumstance penalty to AC
• You automatically fail Perception checks that rely on sight
• You treat all terrain as difficult terrain (double movement cost)
• You can still hear, smell, and use other senses

How Applied:

• Darkness (if you lack darkvision)
• Blindness spells and effects
• Flash or light-based effects (like flashing spark)
• Injury, disease, or curse

How Removed:

• Remove the source (exit darkness, dispel the spell)
• Healing that specifically addresses blindness (like remove blindness)
• Duration expiry if the effect is temporary

Interactions:

• Blinded includes the effects of Dazzled (Dazzled is a lesser version)
• You can still take actions that don't require sight — melee attacks (with flat check), verbal spells, etc.
• Tremorsense, echolocation, or similar senses can partially mitigate Blinded

Value: Blinded has no value — you either are or aren't blinded.