It's a contextual communication choice: the intended reader is someone who is concerned about their bifocal prescription. I would assume that whoever makes the

It's a contextual communication choice: the intended reader is someone who is concerned about their bifocal prescription. I would assume that whoever makes the lenses will simply choose the correct focal measurement corresponding to the Vision Pro's fixed 6ft focal distance, and manufacture a lens for that specific focus. What needs to be communicated to the intended reader is that a bifocal prescription will be properly accommodated.