Frames fail at the hinge and the screw. The lifetime versions are the ones an optician can actually work on.
Frames fail at the hinge and the screw. The lifetime versions are the ones an optician can actually work on.
Eyewear has the most available repair trade of anything you own: an optician on every main street who adjusts, tightens, polishes, and re-pads frames all day, usually without charging. The lifetime question in this category is whether your frame is built to accept that service. Block-cut acetate with a metal core re-shapes with gentle heat for as long as you own it; titanium and monel bend true and solder; a hinge held by screws turns the most common failure in eyewear into a ten-second fix from a pharmacy kit.
The second half of the story is the lens. A frame any optical lab can re-glaze converts every prescription change, deep scratch, and crack into maintenance instead of replacement — the frame becomes the durable asset and the lenses become its consumable, supplied by a universal industry rather than one maker. The pattern to avoid is equally visible: molded plastic with no temple core, hinges staked into the material, and shapes a lab will refuse. Those frames are not repaired by the trade because they were not built to meet it.
Acetate can be heat-adjusted and polished for years; injection-molded plastic cannot.
Solderable, adjustable, and hypoallergenic; the hinge is repairable rather than snapped in.
A screw hinge is a two-minute repair; a barrel hinge welded into plastic is the end of the frame.
Buy frames a lab can re-lens, so a prescription change is not a new purchase.
Every item type above, scored 0–100 on the six properties a shopper can check by hand. These score the type, never a product: no brand is named, no price is quoted, and the Guarantee pillar stays provisional until you have a specific maker in front of you. Open a row for the pillar-by-pillar reasoning.
Tell us which product from this piece you have lived with, and how it held up.
Courtesy Score v1.1, 0–100, from six weighted pillars a shopper can check by hand. It is not a product rating and not a brand endorsement — read how we score.
Three questions settle almost every purchase in this category, and all three can be answered before you pay.
A gasket, a sole, a belt, a blade, a battery. If the maker stocks it, the object has a future; if it does not, the maker has set the expiration date.
Stitching, screws, welts, and bolts can all be undone and redone. Glue, ultrasonic welds, and fused linings cannot.
Single-material objects — cast iron, solid wood, steel, wool, full-grain leather — wear evenly and repair cleanly. Laminates delaminate.
These three questions are the short form of the six-pillar Courtesy Score rubric — the weights, the caps, and the worked examples are published in full at how we score.
Reviews are written when the object is new, before the failure modes arrive, and most review coverage never reaches the categories on this index at all. So use the review you are already watching — or the person at the counter — to answer the six things a first impression cannot:
What is it made of, and is that one thing — or layers bonded together? Did they show a seam, a laminate edge, a fused lining?
Did they open it? With ordinary tools, or by prying against clips and glue? Is there a free repair guide anywhere?
Which part wears out first, is it sold today, and for how many years after the model is discontinued?
Does it work with no account, no app, and no server — and can the battery, if there is one, come out?
Who fixes this besides the maker — a cobbler, a watchmaker, a bike shop, a repair café — and can they get parts without permission?
What is promised in writing, and does the maker sell parts to people whose warranty has run out?
The only durability evidence better than any score is your own: what you bought, when, what wore first, and what a year of ownership actually cost. The CourtesyCart app is building the Owner's Log to keep that record against your real purchase dates — cost per year from receipts, not from marketing. It arrives with the app itself.
The longevity evidence behind this index comes from owner communities and open repair data rather than from any maker's marketing. Start with these: