I have suffered from severe chronic MGD dry eye and recurring corneal erosions for over 10 years. I only recently found these moisture chamber glasses, and oh, how I wish I would have found them sooner! These are a simple, drug-free, no-side-effect, effective way to manage the painful symptoms of dry eye. (They're particularly great if you live in a dry, windy climate like me!) I'm a white woman of medium build with a narrow/medium face, and the Marina frames fit me perfectly, and are really cute! (Please don't ever discontinue the Marina frames, Ziena!!) They're very similar to my old stylish Ray Bans. The frosted eye cups are really subtle, but really comfortable and effective. It feels like a portable steam room for your eyes! I work on my computer all day, and I find the blue light blockers to really help with eye strain as well, so I also highly recommend the blue-blocking lenses. The silicone eye cups are very easy to remove and clean, and it's great that Ziena offers replacement eye cups if they eventually need replacing. These fit me so well that sometimes the lenses do fog up a bit, but that means there's moisture surrounding my eyes, so I don't mind! I'm sure a few swipes of an anti-fog cloth would take care of it. These are definitely a new-found favorite in my arsenal of battling dry eye, and I highly recommend them!