If you buy glasses and accidentally put them on, you can try cleaning them. If you buy printed words, you can find an optical shop and ask them to clean them with a special cleaner. It's not expensive but it's very cheap.
If it doesn't work, you can try the following methods: use high-concentration alcohol and rub it hard. Use nail polish. Note that this is for glass lenses. If the plastic lens will blur, please use it carefully. Banana oil, this is the best. Flammable articles, use with caution and pay attention to safety.