True or False: As a person's BAC goes up, his/her field of vision is reduced.

As a person's blood alcohol concentration (BAC) increases, it adversely affects various cognitive and physical functions, including vision. Alcohol impairs the ability of the eyes to focus properly, which can lead to a narrowing of the field of vision. This phenomenon occurs because alcohol affects the central nervous system, diminishing coordination and slowing reaction times, which can result in difficulties with depth perception and peripheral awareness. Consequently, individuals under the influence may experience tunnel vision, ultimately making it more challenging to perceive their surroundings accurately. Understanding these effects is crucial for recognizing the dangers of driving while impaired, as reduced vision can significantly increase the risk of accidents.