Air Conditioning and Eyes

What does air conditioning have to do with eyeballs? Conventionally, the summer months with warmer temperatures and higher humidity are a good time for the surface of eyeballs. The eye surface can dry out less in humid weather. However, if the eyeballs spend a lot of time in air conditioned environments, they don’t get the benefit of the high humidity to avoid getting dry. If those same eyeballs are under a fan at the same time, there is more evaporation and the eyes might even get drier than they would otherwise. So if you get dry eyes and the symptoms bother you more than the heat, consider decreasing your use of air conditioning and fans in the Summer!