Is optimal timing of choroidal drainage in the case of kissing choroidals with hypotony after glaucoma surgery different in a vitrectomized eye?

To answer the question, probably the timing is not different for a vitrectomized eye. One could make the case for more immediate surgery in the sense that there is no vitreous buffer between appositional retina layers, but I doubt there's much data to support that. On the subject of timing in genera...

When choroidal detachment is secondary to hypotony, treatment should be to resolve the cause of hypotony (in this case, overdrainage), and the choroidal detachment should resolve. I would not drain choroidal detachment in a hypotonous eye.