What effect can alcohol have on driving skills?

Alcohol has a well-documented impact on various cognitive and physical skills necessary for safe driving. One of the significant effects of alcohol consumption is the disruption of eye movement, which can impair a driver's ability to focus on the road, track moving objects, and gauge distances accurately. This disruption can lead to blurred vision, difficulty in tracking a moving vehicle, and a general inability to respond appropriately to visual cues in the environment.

By affecting eye movement, alcohol reduces the driver's overall visual acuity and their ability to react to sudden changes—both of which are crucial for safe driving. In contrast, the other options about improving reaction time, enhancing decision-making, or having no effect on driving skills do not reflect the factual understanding of how alcohol influences behavior and physiological function related to driving. Understanding these effects is vital not just for passing the OLCC Server Permit exam, but also for promoting community safety and responsible alcohol service.