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One of the most popular and talked about ways is reduce our use of fossil fuels. Fossil Fuels can get trapped in the atmosphere and trap sun rays and sun radiation on Earth. This leads to the climate warming up.
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 :)
