LENS COLLECTIONA Japanese progressive family using HOYA's dual-surface BOOM design. The catalogue separates all-distance and room-use configurations within the family.
Far, intermediate and near zones share one lens. Fitting height, frame position and the way you read or use screens influence how you reach each zone.
Record the Field, City or Room configuration rather than the family name alone.
Higher index can change thickness, but it is only one part of choosing a lens.
Compare the measurements and design process, not just the premium label.
Get the exact design, material and service terms in writing.