PICS: Fake eyelashes can damage your eyes

Wearing long, fake eyelashes may lead more air and dust to hit the eyes causing them to dry out, a new study suggests. Scientists have found that 22 species of mammals - from humans to giraffes - have evolved eyelashes that are one third the width of their eye to protect from dust and moisture evaporation. Eyelashes shorter or longer than one third the width of the eye increase airflow around the eye and lead to more dust hitting the surface. "Eyelashes form a barrier to control airflow and the rate of evaporation on the surface of the cornea," said Guillermo Amador, a Georgia Tech PhD candidate in the George W Woodruff School of Mechanical Engineering who authored the study.