The Heated Mask is simply great!
The mask was used for dry eye as a result of a medication I am currently taking. It was recommended by my doctor and doctor's office sold them for $25.00.  I checked Amazon Prime.  The cost, the easiness to use, the comfort, the cover provided for when the patch is not in use,  the quick response to my order and the fact that my eyes feel better is why I give this product such a high rating.
Rating: 5 stars