They do! I found some. I don't know how accurate they are for planning purposes. I would imagine no long range outlooks are perfect. I have tried using local ones before for gardening and they were a bit off.
There are other clinics as well. This is just one example. I figured I would share at least one so everyone reading the thread can get an idea of what to look for when it comes to non-surgical options in Korea. There are a fair bit of them but some of these services are within actual surgery clinics themselves too.