3 ms·
Hah, it's great to hear that the etch-and-polish approach actually works! I've considered doing this to my glasses to remove messed-up antireflective coatings,
by camtarn 4y ago
Hah, it's great to hear that the etch-and-polish approach actually works! I've considered doing this to my glasses to remove messed-up antireflective coatings, but always chickened out before actually doing it.
- sgtnoodle 4y agoYou aren't going to get it perfect. There's always going to be fine scratches, and probably visible ripple texture when you look at the lens from several inches away. When wearing the glasses, though, it looks just fine. It's definitely an improvement from the damaged coatings. On a previous pair with AR coating, I tried sanding rather than etching. It was a lot more effort, and I caused some distortion on the outer edges of the lenses. It was still an overall improvement from the messed up AR coating. I was taking high dose corticosteroids at the time, and the AR coating was driving me so crazy to the point that, if sanding didn't work, they were going to be smashed with a hammer!