Question

__________ often causes the eye to become less responsive.

Answer 1

Alcohol causes the eye to be less responsive

Answer 2

Technically, all of these can cause double vision and other vision problems.

I'm not really sure what "less responsive" indicates, because it can mean a broad spectrum of symptoms. However, I would answer this with alcohol because it causes your eye muscles to weaken and can include symptoms like involuntary twitching.

Sorry I couldn't provide you with a definite answer, but I hope I was able to help :)