Maryland Code, Insurance § 15-710

(a) This section applies to each individual or group health insurance policy or certificate of an insurer that:

(b) Each policy or certificate subject to this section that provides for reimbursement for a service that is within the lawful scope of practice of an optometrist licensed under the Health Occupations Article shall require the insurer to reimburse the insured or any other person covered by the policy or certificate for the service performed by the optometrist in accordance with the other provisions of the policy or certificate.