My dad wore them for some time to correct double vision. Worked well. You wouldn’t know it was a prism.
Currently have a friend who needed them after an accident. He was really bad off with double vision but the prisms corrected it. The prism lens gets changed periodically as the muscles in his eye improves over time. It’s been a lifesaver.
You can’t tell it’s a prism lens unless you are at a certain angle from him and the sun is shining. Straight on it looks like normal glasses.