The Opti-Soothe Moist Heat Mask is a reusable mask for soothing, effective relief of Dry Eye, Blepharitis, Meibomian Gland Dysfunction (MGD), Chalazion and Styes. It's easy to use and ready in seconds, washable and reusable, and soft and comfortable to wear.The Opti-Soothe Moist Heat Mask is designed to provide effective relief from dry eye and other related eye conditions. The mask features HydroBead technology, which absorbs moisture from the air and once heat activated, releases a natural, consistent moist heat. Easy to use with 25 seconds in the microwave delivering 10 minutes of controlled moist heat. Soft and comfortable to wear, the Moist Heat Mask is also washable and reusable. Can also be used for cold therapy to help reduce symptoms of eye allergies, puffy eyes and contact lens irritation.