Can an optometrist request a cat scan or mri if he suspects a tumor on the optic nerve?

An optometrist can typically refer a patient for advanced imaging like a CT scan or MRI if they suspect a tumor on the optic nerve, but they do not have the authority to directly order these scans in all jurisdictions. The referral is usually made to a medical doctor, such as an ophthalmologist or neurologist, who can then order the appropriate imaging studies. The optometrist may perform initial assessments and determine the need for further evaluation. Collaboration with other healthcare professionals is essential for accurate diagnosis and treatment.