Section 11-402 - Duty of referral(a) If, while providing optometric services to a patient, an optometrist or diagnostically certified optometrist detects or diagnoses an active eye pathology which the optometrist is not licensed or certified to treat under § 11-404 or § 11-404.2 of this subtitle, the optometrist shall refer the patient to: (1) An ophthalmologist or a therapeutically certified optometrist, as appropriate;(2) The patient's physician;(3) A physician if required under a managed care contract; or(4) A hospital emergency room or ambulatory surgical center if necessary.(b) If, while providing optometric services to a patient, a therapeutically certified optometrist diagnoses an active eye pathology that the optometrist is not certified to treat under § 11-404.2 of this subtitle, the optometrist shall refer the patient to: (2) The patient's physician;(3) A physician if required under a managed care contract; or(4) A hospital emergency room if necessary.