The surgeon recommended this product
My brother just had extensive facial surgery that left him unable to close his eye completely. The surgeon recommended this product. My brother states that it really makes a difference in the moisture in his eye.  And he can still watch tv while wearing it. The only issue, and the reason for 4 not 5 stars, is the elastic band. It is very small and cut into the skin and was quite uncomfortable.  I crocheted a narrow band around the elastic and it helped a lot.
Rating: 4 stars