As the blood alcohol level increases, the eyes' ability to cooperate decreases. This, in turn, leads to a reduced ability to assess distances. Glare sensitivity is also increased, and peripheral and night vision is impaired. A person who is heavily intoxicated may start to see double.
In darkness, these negative effects are enhanced.
Make study more fun and easier than ever. Play through the entire licence theory with our new game The Licence Game!
Test your knowledge with a free theory test. It works on all devices and the questions are designed to simulate the real theory test.