Which symptom is associated with impaired vision due to alcohol consumption?

The symptom associated with impaired vision due to alcohol consumption is double vision. Alcohol affects the central nervous system and can lead to the disruption of the normal function of eye muscles and coordination. This impairment can result in a misalignment of the eyes, causing the brain to receive two different images, leading to double vision.

In contrast, heightened clarity, enhanced focus, and sharp perception do not accurately describe the effects of alcohol on vision. In fact, alcohol typically leads to reduced clarity and impaired focusing ability, making double vision the clear indicator of visual impairment resulting from alcohol consumption.