Optical Cost of Goods: Benchmarks and the Levers That Move It

Cost of goods is the largest expense category in most optometry practices — bigger than rent, bigger than any single salary — and the least examined. Owners negotiate a lab contract once, set frame lines by rep relationship, and let the category run itself for years. Meanwhile every point of COGS is a point of margin: on a dispensary doing $500,000, moving COGS from 32% to 27% is $25,000 a year found without selling one more pair.

Know where you should land

Blended optical COGS for independent eye care practices typically runs 25–30% of optical revenue. Underneath the blend: frames commonly 28–35% of their retail (heavily driven by vendor mix and discount tiers), lens and lab costs 20–30% of lens revenue depending on your lab arrangement and in-office finishing, and contact lenses the thinnest margin of the set — often 55–65% COGS — which is why subscription programs compete on convenience rather than price. Compute yours by category quarterly; the blend hides the leaks.

The levers, biggest first

• Lab consolidation and contract review. The lens lab is your largest single vendor. Consolidating volume into one primary lab buys discount tiers, and re-shopping the contract every two or three years keeps them honest. Know your redo policy, AR coating tiers, and freight terms — they're negotiable.
• Remake and redo tracking. Every remake is COGS with no revenue. Track remakes monthly by cause: doctor Rx change, measurement error, lab defect, patient non-adapt. Each cause has an owner and a fix — and labs credit their own defects only when you claim them.
• Frame vendor discipline. Fewer, deeper vendor relationships with better tiers and return-swap privileges — the inventory guide covers the board side. Audit invoice pricing against contract terms; drift is routine.
• Invoice reconciliation — the unglamorous goldmine. Lab and frame invoices contain errors at rates that would embarrass other industries: wrong tier pricing, uncredited returns, duplicate charges, unclaimed warranty credits. Practices that reconcile every invoice against orders recover real percentage points.

Don't confuse COGS-cutting with value-cutting

The goal is paying less for what you sell, not selling worse product. Downgrading lens quality to save three points costs more in remakes, complaints, and lost revenue per patient than it saves in COGS. Cut waste, negotiate hard, keep the product.

Staff the reconciliation

Every lever above is administrative persistence: reconciling invoices, logging remake causes, auditing contract pricing, preparing the quarterly category report. It's exactly the work that never happens in a busy optical — and exactly what a trained eye care virtual assistant does at a flat $10/hour, paying for itself out of the first recovered invoice errors. Optometry or ophthalmology dispensary, the rule is identical: the vendors do this math every day. Someone on your side should too.