> ## Documentation Index > Fetch the complete documentation index at: https://mso.getlemma.com/llms.txt > Use this file to discover all available pages before exploring further. # Optometry and vision > The two-payer world of medical insurance versus vision plans, corporate practice of optometry and the retail-optical carve-outs, and materials revenue as retail rather than claims. Optometry is structurally unusual in two ways: it has its **own corporate practice doctrine** with explicit retail carve-outs in many states, which is why national optical chains can sit adjacent to optometry practices, and it operates in a **two-payer world** where the same patient's care may be billed to a vision plan or to medical insurance depending on why they came in. ## Entity and doctrine specifics **The corporate practice of optometry** is a distinct doctrine. Its enforcement varies widely, and Mississippi is a frequently cited example of a state that is permissive for medicine and strict for optometry, a good reminder that profession-specific analysis is not optional. **The retail carve-outs are the distinguishing feature.** Many states expressly permit arrangements in which a commercial optical retailer leases space to, or is adjacent to, an independently owned optometry practice. The requirements typically address: * **Separation** of the optometric practice from the retail operation * **Independence** of the optometrist's professional judgment * **No revenue sharing** based on prescriptions written or materials sold * **Signage and disclosure** so patients understand the practice is independent * **Lease terms at fair market value**, not tied to practice volume These carve-outs are what make the LensCrafters-adjacent model lawful where it is. They are also **narrow and specific** — a structure that resembles the retail model but doesn't satisfy the state's actual conditions is not protected by them. **The retail carve-out is not a general permission for lay ownership.** It is a specific accommodation with specific conditions. Read your state's optometry practice act rather than reasoning by analogy from what a national chain appears to do. ## The two-payer world The defining operational complexity, and the source of most billing errors in optometry. | | Vision plan | Medical insurance | | --------------------- | ------------------------------------------------------------------ | ------------------------------------- | | **Examples** | VSP, EyeMed, Davis Vision, Superior Vision | Any medical payer | | **Covers** | Routine eye exams, refraction, glasses and contact lens allowances | Medically necessary eye care | | **Trigger** | Routine vision care, "I need new glasses" | A medical complaint or condition | | **Typical structure** | Annual benefit with materials allowance | Standard deductible/copay/coinsurance | | **Claim format** | Plan-specific portals, and 837P for some | 837P with CPT and ICD-10 | | **Credentialing** | Separate from medical | Separate from vision | | **Reimbursement** | Generally lower per exam | Generally higher for medical services | **Which one to bill is a per-encounter determination driven by the reason for the visit and what was found.** A patient presenting for a routine exam who is found to have diabetic retinopathy has generated both a routine encounter and a medical one. A patient presenting with a red eye is a medical visit even if they also get a refraction. **This is where optometry billing goes wrong in both directions.** Billing medical for a routine refraction is improper. Billing vision for a medically necessary encounter leaves substantial revenue uncollected and applies the wrong benefit. Neither error is trivial, and the second is the more common one. Practical guidance: * **The chief complaint drives the determination.** Why did the patient come in? * **A medical diagnosis alone doesn't make a routine exam medical** — the visit's purpose matters * **Refraction is frequently non-covered by medical plans** and is often a patient responsibility or a vision-plan item * **Some encounters legitimately generate both** a vision claim and a medical claim, for distinct services * **Document the reason for the visit clearly**, because it is the basis for the determination ## Materials: retail, not claims The other structural distinction. A significant share of optometry revenue comes from **selling glasses and contact lenses**, which is retail commerce rather than claims-based healthcare revenue. Implications for an MSO-PC structure: | Question | Consideration | | ------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Which entity sells the materials?** | Retail sale of optical goods is generally not the practice of optometry. It may sit in the MSO, but check the state's rules on separation and on revenue tied to prescriptions. | | **Inventory and working capital** | Frames and lenses are inventory, which most healthcare businesses don't carry. It ties up cash and needs management. | | **Sales tax** | Retail sales may be taxable where healthcare services are not. Two different tax regimes in one location. | | **Revenue recognition** | Product revenue at the point of sale, distinct from service revenue with contractual adjustments. | | **Margin structure** | Optical retail margins differ entirely from claims-based reimbursement, and the blended P\&L needs to separate them to be interpretable. | **Compensation tied to materials sales is where optometry's kickback exposure concentrates.** An optometrist compensated based on the value of eyewear sold following their prescriptions raises exactly the concern that professional judgment is influenced by product revenue, and it is the arrangement retail carve-out conditions typically prohibit. Structure optometrist compensation around professional services. ## Billing characteristics * **837P** for medical claims with CPT and ICD-10; vision plans often use their own portals * **Dual credentialing**, with medical payers and, separately, with each vision plan * **Common CPT ranges**, general ophthalmological services (the 920xx series) and evaluation and management codes; the choice between them has its own rules * **Refraction (92015)** is frequently non-covered by medical plans * **Specialty EHRs**, RevolutionEHR, Crystal PM, handle the dual-payer and optical-inventory model that generic systems don't 👁 If you run a combined ophthalmology and optometry group, you may have two professions in one organization, with different ownership rules and different payer relationships. Confirm whether your state permits them in one professional entity. See [Multi-specialty considerations](/concepts/entities/multi-specialty-considerations). ## Launch pitfalls 1. **Assuming the medical CPOM answer applies** to optometry 2. **Copying a retail-adjacent model** without satisfying the state's specific carve-out conditions 3. **Under-billing medical**, treating every encounter as a vision-plan visit 4. **Over-billing medical** for routine refractive care 5. **Missing vision plan credentialing** entirely, and being out of network for a large share of local patients 6. **Tying optometrist compensation to materials sales** 7. **Not separating product and service revenue** in the P\&L 8. **Overlooking sales tax** on optical goods 9. **Using a generic EHR** that can't handle dual-payer billing and optical inventory ## Related topics - [The corporate practice of medicine doctrine](/concepts/model/cpom.md) - [Who can own a professional entity](/concepts/entities/who-can-own-what.md) - [Stark, AKS, and why comp design is constrained](/concepts/compliance/stark-and-anti-kickback.md) - [Enroll and contract with commercial payers](/guides/enrollment/enroll-with-commercial-payers.md) - [Choose an EHR/PM system](/guides/billing/choose-an-ehr.md) - [Mississippi — CPOM & MSO reference](/reference/legal/states/mississippi.md) - [EHR/PM directory by segment](/reference/vendors/ehr-directory.md)