PICS: Fake eyelashes can damage your eyes

"As short lashes grew longer, they reduced air flow, creating a layer of slow-moving air above the cornea," said Hu. "This kept the eye moist for a longer time and kept particles away. The majority of air essentially hit the eyelashes and rolled away from the eye," Hu added. The opposite process occurred with longer eyelashes. The lashes extended further into the airflow and created a cylinder.