Be careful not to let the air from blow dryers, fans or air conditioning blow directly towards your eyes. If you are driving with the windows down, wear sunglasses to protect your eyes from the wind.
While it may seem like a good idea to point a fan directly towards you on a hot summer day it could be quite detrimental to the comfort of your eyes. Any type of forced air or wind has the potential to dry out the surface of your eye. Your eye may not be capable of making enough tears quick enough to replenish what was dried out. To avoid this, and uncomfortable dry eye symptoms, protect your eyes from wind or forced air heating and cooling systems by using protective eye wear (sunglasses) or positioning the systems away from your face.