Spec Check ยท progressive and bifocal lenses
progressive and bifocal lenses
Use this Spec Check page to resolve open choices between progressive and bifocal lenses before an inquiry is treated as comparable. Bifocal Lenses Sourcing is an independent sourcing partner that lists gaps; catalog numbers and corridor heights remain buyer decisions. We do not manufacture lenses or authorize brands.
Eligibility for free sourcing support and up to 3% is confirmed after we check the product, quantity, destination and request. It is not a discount and not limited to today.
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What to verify before accepting an alternative on progressive and bifocal lenses
Buyer brief
Keep progressive corridor claims and flat-top bifocal claims on separate lines when both appear in the same purchasing file. One product family per request prevents factories from pricing different near-vision geometries under a shared total. Record refractive index or high index preference, polycarbonate or CR-39 material if specified, add power or diopter if known, and whether anti-reflective coating or photochromic requests must sit inside the price.
When a plant offers a substitute, write the corridor height change, segment style change or material change before ranking unit prices. Base lens versus coated lens is a separate commercial decision: polarization and hard coat change the quote and are not included unless the supplier writes them in. Public frame-size charts and one safety-model sheet only show which millimetre or marking fields to ask for; they do not set this site's stock or ANSI Z87.1 claim.
- Confirm whether the buyer needs progressive and bifocal lenses as a comparison task or has already chosen one form.
- Confirm lens width, bridge width and temple length in millimetres only when a finished spectacle is also priced.
- Confirm packing unit and destination so freight exclusions stay visible.
- Confirm that a company brochure is not treated as evidence for the exact lens being ordered.
Open items
Lead time, MOQ and warranty stay blank until the supplier states them. Marking documents belong to the quoted model. Optional budget currency and high-end / mid-range / budget / undecided preference remain buyer notes, not verified ratings.
Return to inquiry options when neighbouring cards such as transition bifocal lenses still need their own quantity lines.
Name the bifocal lenses model, then the destination
Free sourcing support and up to 3% apply only to qualified business buyers after the product, quantity, destination and request are checked.
Request Factory Quotes