This is actually one of the grossest things we’ve seen in awhile.

Eye doctors are warning women who get eyelash extensions about the danger of lice — in their lashes.

Optometrists say they have seen more cases of “lash lice” due to the new trend.

Many people who get the extensions are afraid to wash their lashes because their extensions may fall out.

Experts say that not washing eyelashes can increase bacteria and lead to infection. Even worse, lice can show up, and they can spread. Doctors say cleaning is critical and that it’s a good idea to give your eyes a break from the extensions every once in awhile.