I think that should happen more in the game. When you are under the outside hot sun for a long time with lots of sand reflecting the sunlight back at you, you should see some glare. Same thing if you look upwards at the sun. Maybe your perception gets penalized a bit.
That is if your eyes are naked, of course. You can wear sunglasses or other eyewear to reduce the effect, but they cause their own distortion (dust build up on them after a sandstorm etc, but they eventually get cleaned up by themselves).