They work. They also come unstuck within a week.
Despite the negatives that I will get to in a moment, these works perfectly. They stopped my glasses from sliding, and they are comfortable to wear. Now for the negatives: within 2 weeks they start to come loose. You can stick them back on, but they are still going to come loose. So they have to be replaced at that point. So far I have gone through three sets. It would be great if they held longer, but two weeks (or less) is ridiculous.
Rating: 3 stars