When it comes to choosing opera glasses, there are a few things you'll want to keep in mind. First, you'll want to think about what type of performance you're going to be seeing.

If it's a ballet, for example, you might want to choose a pair of glasses that has a lower power so that you can see the stage better. If it's an opera, on the other hand, you might want to choose a pair of glasses with a higher power so that you can see the details of the performance more clearly.

You want to be able to see the stage clearly and enjoy the performance without having to worry about the quality of your vision. That's where opera glasses come in.