Review (5/5): Only thing that has worked!
I've had a dry left eye for over 25 years and have tried all kinds of things for relief -- drops, gels, eye patch, eye mask, eye mask on top of eye mask. None of those things, either alone or in combination, have worked very effectively.
I stumbled on this little moisture chamber a few months ago and decided to add it to my arsenal. FINALLY, I now wake up every morning with a moist eye! I cut off the strap and tuck the chamber under my eye mask after applying drops and nighttime eye gel. Yes that seems like a lot of effort, but it is so worth it. I bought a second one to wear on my right eye even though it's not as dry.
I had a problem with the second shipment and the seller was very helpful in resolving the problem.