Eye Doctor Explains Risks of Leaving Mascara On Overnight and Removal Tips

New York-based eye doctor Dr. Jennifer Tsai warns that leaving mascara on overnight can cause tiny, dried particles to accumulate under the eyelids, forming hard lumps that may irritate or scratch the cornea. She advises removing eye makeup thoroughly each night, double cleansing lashes, and opting for non-waterproof or tubing mascaras, which are easier to remove and less likely to cause irritation.