Business and Professions Code section 2564.71

(a)

A person located outside California shall not ship, mail, furnish, or deliver in any manner, ophthalmic lenses at retail to a patient at a California address unless the person is registered with the California State Board of Optometry.

(b)

With regard to any person subject to registration pursuant to this section, only spectacle lenses and replacement contact lenses provided pursuant to a valid prescription as described in Section 2564.76 may be shipped, mailed, furnished, or delivered directly to a patient.