For stronger add powers, they recommend that different multi-focal patterns for distance and near go in each eye, and that you’re aiming for 20/20 at distance in one eye, and near in the other.
Does this actually help the patient use monovision more effectively? Is there any real benefit to the other eye having peripheral focus to pair with the other eye? If the secondary power only has 20/40 visual acuity, is it doing anything? Or is this a big scam to charge more for monovision fit contacts?