You will find a lot of miracle cures online for scratched lenses. We recommend against trying them. At worst, they will destroy your lenses. At best, they will void your warranty. You are always better off talking to a professional about getting replacement lenses. You may come across products that will reduce the appearance of scratches. These are usually a sort of waxy material that will offer you mixed results. It tends to wear off with ease, and smear your lenses. Scratches on your lenses don't only mess with your vision. They can be dangerous, too. They may lose strength and impact resistance. If you want to stay safe and sighted, the best thing to do is buy new lenses. Of course, prevention is better than a cure. You can avoid scratching your lenses in the first place. Choose a pair that have a scratch-resistant coating. Store them in a safe place whenever you take them off. Get a clean storage case and remember not to place them anywhere lens-down. Should you be unable to use a glasses case, for whatever reason, keep your glasses open. Place them upside down, somewhere safe. Follow this advice and you should be able to avoid needing to remove scratches at all.