A painter came to us with a special problem specific to his hobby. He needed to be able to see the canvas on his easel, as well as his subject.
The subject was at distance, and the canvas was at arm length - slightly more than reading distance.
We solved his problem by selecting a very wide segment traditional bifocal (FT35), adjusting the prescription for the working distances, and turning the segments sideways in the frame - to the right side in this case. The patient was then able to look left to see the subject, and right to see the easel.
Something similar can be achieved for musicians in an orchestra, where they need to be able to read sheet music on a stand and also see the conductors movement.
Novel approaches such as this make the profession of opticianry a lot of fun.