4. Leave your contact lenses in your luggage
It is better to put on your glasses when you are going to be on a plane, because the air in the cabin is very dry and it can irritate your eyes. Keep in mind that it’s not good at all to sleep with your contacts on due to the irritation they will cause.
5. Turn off the air vent
Although it might be cold on the airplane, it’s better to put a sweater on, instead of turning off the air vent. According to doctors, the air vent should be set to medium or high and it is good for you because it blows away any airborne germs, all before they manage to enter your personal zone.