Hospital eye departments benefit most, since referred and complex cases need powers a smaller set may not carry, and improvising by stacking lenses is least acceptable where accuracy matters most.
High prescriptions draw on the extremes of a set, which is where a larger range earns its place.
Low vision clinics need unusual powers and combinations, often beyond the span of a compact set.
Main refraction rooms suit a set that stays put, with the case used for storage rather than daily carrying.
Teaching clinics gain from a full range, so students meet the whole spread of powers rather than a subset.
Multi-site groups can move the cased set between clinics when needed, which 6.0 kg makes practical occasionally rather than daily.
Domiciliary work is better served by a compact set, since 6.0 kg is a two-handed lift.
Compatibility with existing frames depends on the unpublished ring outer diameter, which should be confirmed before purchase.



