How tear-ible! Over 20 million Americans have dry eye disease, which means that their eyes don’t produce enough tears or their tears evaporate too quickly. Dry air, wind, certain autoimmune diseases, medications like antihistamines and decongestants, too much screen time, vitamin A deficiency and contact lenses are often to blame. Dr. Ashley Brissette, a board-certified ophthalmologist and eye surgeon at Kelly Vision in NYC, shares her secret to battling eyelash mites overgrowth. Kelly Vision Dr.…