Worked well to quickly alleviated my dry eye symptoms
I bought two different dry eye masks, the Dry Eye Mask by Heyedrate and the MediViz Blepharitis Eye Mask.  When I received them, I noticed that they were virtually identical: packaging identical, shape and size of the masks virtually identical. The only two differences I found are (1) that one came with a green pouch and the other came with a blue pouch; and (2) the MediViz may be just a slight bit smaller.  They both had the same instructions and felt the same on.  I tried the Heyedrate mask first.  After using it for two days, my dry eye symptoms were much better.  I went ahead and tried the MediViz on the third day, mainly to compare the two.  In my opinion, they both felt the same on my face, both seemed to work well, and my experience with both was the same.  After microwaving them for 20 seconds, neither were too hot to the touch, so I could immediately apply them to my eyes.  And as several reviewers noted, both cooled off within 5 to 10 minutes. I did not feel this was a bad thing, since the instructions say to apply for up to 10 minutes. So the 5 - 7 minutes I used each of them seemed sufficient to alleviate my symptoms.  I am happy with my purchases and will keep both of them.  I didn't give a full 5 stars, because I would have preferred that the cloth covers were removable so I can wash them separately.
Rating: 4 stars