If an optometrist duplicates a patient's prescription from their existing glasses (by neutralizing/measuring the old lenses) rather than performing a new refraction or receiving a written prescription, does the optometrist have to charge sales tax on the new glasses?

Plain-English summary

An optometrist asked whether sales tax must be charged on a pair of glasses when the prescription is duplicated from the patient's previous glasses, rather than obtained through a new refraction or a written prescription from another eye-care provider.

Note: the STAR system's own subject-matter heading for this letter refers to "Duplication, Repair, Replacement" of eyeglasses, but the letter itself addresses only duplication — measuring ("neutralizing") a patient's existing lenses with a lensometer to create a matching new pair. It does not discuss repair or replacement of eyeglasses. The subject_title above has been corrected from "Prescrition" to "Prescription" (a typo in the original STAR heading) but otherwise reflects the STAR category label; the actual holding is narrower than the heading suggests.

The optometrist in this case does not perform a refraction and does not receive a written prescription from another optometrist or ophthalmologist. Instead, the optometrist "neutralizes" the eyeglasses the patient is currently wearing — using a lensometer, an instrument that directly measures the power (strength) of the lenses — to read the patient's existing prescription, and then makes a new pair of glasses matching that reading.

The Comptroller ruled that no sales tax is due, whether the optometrist makes the initial determination of the corrective lens strength a patient needs, or duplicates a prescription from another optometrist. Texas Tax Code sec. 151.313(a)(6) exempts "corrective lens... if dispensed or prescribed by an ophthalmologist or optometrist." When an optometrist duplicates a patient's previous glasses, the Comptroller treats that as "dispensing" corrective lenses under the statute — so the exemption applies.

What this means for you

Optometrists and ophthalmologists

If you duplicate a patient's prescription by neutralizing (measuring) their existing glasses with a lensometer — rather than performing a new refraction or receiving a written prescription from another provider — you are still "dispensing" corrective lenses for purposes of the Tex. Tax Code § 151.313(a)(6) exemption. Sales tax is not due on the new glasses in that scenario.

Patients

This letter confirms that getting a duplicate pair of prescription glasses made by an optometrist — without a new eye exam — does not carry Texas sales tax, because the optometrist is still considered to be dispensing corrective lenses.

Practice billing and accounting staff

When coding sales for glasses duplicated from a patient's existing pair, this ruling supports treating those sales the same as glasses dispensed following a new refraction or written prescription — both fall under the same corrective-lens exemption.

Common questions

Q: Does an optometrist have to charge sales tax when duplicating a prescription from a patient's old glasses?
A: No. The Comptroller ruled that this is not subject to sales tax under Tex. Tax Code § 151.313(a)(6).

Q: What does it mean to "neutralize" eyeglasses?
A: It means using a lensometer — an instrument for direct measurement of spectacle power — to read the strength of the lenses in glasses the patient is currently wearing.

Q: Does the exemption only apply if the optometrist performs a new refraction?
A: No. The letter states sales tax is not due whether the optometrist makes the initial determination of the corrective lens strength needed, or duplicates a prescription from another optometrist.

Q: Does this ruling address repairing or replacing eyeglasses?
A: No. Despite the STAR system's subject heading mentioning "repair" and "replacement," the actual letter text only discusses duplicating a prescription from a patient's existing glasses.

Q: What statute does this ruling rely on?
A: Texas Tax Code § 151.313(a)(6), which exempts corrective lenses if dispensed or prescribed by an ophthalmologist or optometrist.

Q: Can another optometrist or business rely on this specific letter?
A: No. This opinion is based on the facts presented, and STAR letters can be the basis of a detrimental reliance claim only for the taxpayer to whom the letter was directly issued.

Citations and references

• Tex. Tax Code § 151.313(a)(6) — exempts corrective lenses if dispensed or prescribed by an ophthalmologist or optometrist.

Source

• STAR search: https://star.comptroller.texas.gov/search?doc_type_code=L&tax_type_code=SST
• Opinion: https://star.comptroller.texas.gov/view/9207L1181E14

Original ruling text

July 7, 1992

Dear ***:

Thank you for your recent letter asking if an optometrist must charge sales tax
on a pair of glasses which prescription he duplicates from the patients
previous glasses.

You stated that the optometrist does not perform a refraction, nor does he
receive a written prescription from another optometrist or ophthalmologist, but
rather he neutralizes the eyeglasses the patient is wearing and makes a new
pair from that reading.

Response: I understand that to "neutralize" eyeglasses is to look at the lens
through a lensometer; an instrument for direct measurement of spectacle power.
This gives you the "reading" of the patient's present prescription.

Whether the optometrist makes the' initial determination of the strength of
corrective lens needed by a patient or duplicates a prescription from another
optometrist, sales tax is not due. Texas Tax code sec. 151.313 (a) (6) exempts
"corrective lens . . . . . . . If dispensed or prescribed by an ophthalmologist
or optometrist." When an optometrist duplicates a patient's previous glasses,
the optometrist is "dispensing" corrective lens as set out in the Tax code.

This opinion is based on the facts presented. If there are additional or
different facts, the opinion may change.

If you have any questions or need more information, you may call me toll free
at 1-800-252-5555, extension 3-4633. The regular number is 512/463-4633. You
may also write to the Tax Administration Division.

Sincerely,

Wanda Hutcheson
Tax Administration Division