It happens in some cases that some people would feel their eyes hurting when they are taking a plane. This is because that the barometric pressure inside the cabin of the plane is higher than that on the ground surface, thus making the insufficiency and low density of oxygen. Therefore, it is quite easy for people to feel their skin dry, their mouth parched and their tongue scorched. So are the eyes. The eyes need adequate amount of oxygen and water to keep themselves moist and maintain normal metabolism, and dehydration can lead to dry eyes, eye pain and so on. To reduce or avoid this kind of eye pain on the plane, you should firstly drink moderate amount of water. And if the eye still hurt, you can use some eye drops or artificial tears to moisten your eyes. And pay attention that you should not wear eye contacts when you are taking a plane, because eye contacts will aggravate the dry conditions in your eyes.
