Unable to see. A blinded character takes a -2 penalty to Armor Class, loses his Dexterity bonus to AC (if any), moves at half speed, and takes a -4 penalty on Search checks and on most Strength- and Dexterity-based skill checks. All checks and activities that rely on vision (such as reading and Spot checks) automatically fail. All opponents are considered to have total concealment (50% miss chance) relative to the blinded character. Characters who remain blinded for a long time grow accustomed to these drawbacks and can overcome some of them (DM's discretion).