Ohio Rev. Code § 4725.30: Ocular abnormalities.

If while examining a person an optometrist detects evidence of an ocular abnormality requiring further diagnosis or possible treatment that is not included in the optometrist's practice of optometry, the optometrist shall advise the patient to see a physician authorized to practice medicine and surgery or osteopathic medicine and surgery. The optometrist shall include in the patient's records an entry specifying that the notice required by this section was given.