What should you know about eye MRI scan?

MRI can help clinicians assess a lump, swelling, inflammation, injury, changes around the optic nerve, or spread of disease into nearby structures. It uses no ionising radiation. The scan usually involves lying still while a scanner makes loud knocking sounds; ear protection is provided. Some examinations use contrast through a vein to make particular tissues easier to distinguish. MRI pictures are interpreted alongside your symptoms, eye examination, and any earlier imaging. A scan alone does not establish every diagnosis.

The scanner is a strong magnet. Metal fragments in the eye, some implants, implanted pumps, certain clips, and some electronic devices may make MRI unsafe or require special checks. Tell the team about pregnancy, kidney problems, allergies, anxiety in enclosed spaces, and anything metal in or on your body.

Follow the imaging centre's instructions about eating, drinking, and medicines. Wear simple clothing and remove jewellery, watches, cards, piercings, hearing aids, and removable dental items if asked. Complete the safety questionnaire accurately, including previous operations and metal injuries. During the scan, use the call button if you feel unwell or distressed. Staying still helps produce clearer images. Ask when and how the result will be shared; the radiologist's report is sent to the clinician who requested the test.

Tell staff immediately if you develop breathing difficulty, facial swelling, widespread itching, faintness, or severe discomfort during or soon after contrast. Contact your care team for worsening eye pain, sudden vision loss, new weakness, confusion, or a severe headache after the scan. These symptoms need assessment regardless of whether the MRI was reassuring.

What question is this MRI intended to answer? Will contrast be used, and do I need kidney tests beforehand? When should I expect the report? Could I need another test, such as a biopsy, if the images show an area that needs clarification?