'Driver's dry eye' can cause distracted driving
"Driver's dry eye" is surprisingly common among both non-professional and professional drivers, and it can be deadly. After driving for hours or days, with the air-conditioner or heater blasting, eyes may begin to itch and burn and eventually, eyelids can feel so heavy that the driver is forced to pull off the road. According to eye and water researcher Sharon Kleyne, the cause may not be lack of sleep but "driver's dry eye." This may be an even greater source of distracted driving accidents than cell phone use because it can make people fall asleep at the wheel even if they aren't tired.
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