I love this patch! I've needed to wear an eye patch a lot since losing my eye in 2002. Other eye patches (Walgreens, Wal-Mart, and local pharmacy) I've used are way too tight when you first open up the package. I also don't like that they have a point, or that they look like a cone covering my eye. My most recent patch before this one also came from the internet. This one was great because it was adjustable (you string the elastic through the holes and tie little knots in front, but I don't like being able to see the little knots) and it is made out of a rubberized type material, maybe silicone? This was nice because there was no longer a cone or point poking out. This is nice, too, because you could wear it underneath glasses. The downside with that patch is that it got hot and steamy under there. Who knew your eye could sweat, right?! This patch it awesome because it using the same concept of being adjustable, but the knots are underneath the patch and behind some foam that's underneath. The foam keeps the knots from rubbing against your head. This is the most comfortable patch there is, I'm convinced. It is nice and smooth so there is no point. I haven't tried, but I'm pretty sure it would fit under glasses. It also doesn't get hot underneath because the foam keeps it from laying flat against your face. At certain angles, you can see the grey foam underneath, which I don't really like, but this patch is so much better than any other that I've used that I'm willing to overlook this one flaw. Buy this one, you won't regret it! After trying this one and discovering its greatness, I turned around and bought 2 more.
*** The eye patch is adjustable, but it doesn't appear that way at first. When looking at the eye patch, foam-side up, the knot on the upper right side is the adjustable one. It's actually glued in place under the foam. I just opened a new patch and I'd forgotten this was my experience the first time I opened a package. You have to kind of work the knot away from the glue a little. It may seem like you'll ruin the patch, but you won't. Just move the foam a little away from the knot and pull on the knot. It will give away after a few tugs. Once it does, you adjust it to the size you like by making a new knot and cutting the excess off. The new knot will rest under the foam and you won't feel anything.
It's a bit frustrating that there were no instructions with the patch, but now that I know the tricks, I love this patch! Give it a try, it was a game changer for me!