Orbits & Eye MRI Scan: Complete Guide

An eye MRI scan (also called an orbits MRI) is a specialised imaging study that produces detailed pictures of the eyes, eye sockets (orbits), optic nerves, and surrounding structures. MRI is the imaging modality of choice for evaluating orbital and optic nerve pathology because it provides superior soft-tissue contrast without radiation — particularly important given the sensitivity of ocular tissues. This guide explains everything you need to know about orbital MRI in the UK.

What an Orbits and Eye MRI Scan Shows

Orbital MRI provides high-resolution images of the complex anatomy within and around the eye sockets. It can detect:

• Optic neuritis — inflammation of the optic nerve, commonly associated with multiple sclerosis (MS)
• Orbital tumours — including haemangioma, lymphoma, meningioma, optic nerve glioma, and metastases
• Thyroid eye disease (Graves' orbitopathy) — swelling of the extraocular muscles causing proptosis (bulging eyes)
• Extraocular muscle abnormalities — inflammation, injury, or nerve palsies affecting eye movement
• Orbital cellulitis — serious infection of the orbital soft tissues, often from sinusitis
• Optic nerve compression — from tumours, swollen muscles, or other masses
• Lacrimal gland masses — tumours or inflammatory conditions of the tear gland
• Retrobulbar pathology — lesions behind the eye that may cause visual symptoms
• Congenital orbital abnormalities — developmental conditions affecting the eye socket

When You Might Need an Orbits MRI Scan

An orbital MRI may be recommended if you have:

• Sudden or progressive visual loss in one or both eyes
• Pain with eye movement, especially in younger adults (possible optic neuritis)
• Double vision (diplopia) with no clear cause
• Proptosis — one or both eyes appearing to bulge forward
• Swelling or a mass around the eye
• Known thyroid disease with eye symptoms
• Suspected orbital cellulitis or abscess
• Optic disc swelling (papilloedema) seen on eye examination
• Investigation of a cranial nerve palsy affecting eye movement (3rd, 4th, or 6th nerve)

How to Prepare for an Orbits MRI

• No fasting required: Eat and drink normally
• Contact lenses: Remove contact lenses before the scan
• Eye make-up: Remove all eye make-up, including mascara and eyeliner — some cosmetics contain metallic particles that can cause artefact or discomfort
• Metal objects: Remove glasses, earrings, and any facial piercings
• Contrast: Gadolinium contrast is frequently used for orbital MRI to characterise lesions and detect inflammation
• Metal fragment history: If there's any possibility of metal fragments in or near your eyes (e.g. from grinding or metalwork), inform the team — an orbital X-ray may be needed first

What to Expect During the Scan

An orbital MRI typically takes 25–40 minutes:

1. Positioning: You'll lie on your back with your head in a head coil. Small surface coils may be placed over your eyes
2. Eye position: You'll be asked to keep your eyes closed and still during scanning. Looking at a fixed point with eyes closed helps reduce motion
3. Thin slices: The images are acquired with very thin sections (2–3 mm) to capture the small structures of the orbit
4. Fat suppression: Special sequences suppress the bright signal from orbital fat, making abnormalities more visible
5. Contrast injection: If used, gadolinium is injected through a cannula and further sequences are acquired
6. Completion: You can leave immediately after the scan

Orbits MRI Scan Cost in the UK

A private orbital MRI in the UK typically costs between £400 and £800. The cost depends on the protocol used, whether contrast is needed, and clinic location.

Lola Health offers orbits MRI scans through 150+ UK scanning centres with results reported by a specialist radiologist within 7–10 working days. View our orbits MRI scan for pricing and booking.

Eye MRI and Blood Testing

Blood tests can help identify systemic conditions that affect the eyes and orbits:

• Thyroid function (TSH, free T4, free T3) — thyroid eye disease is the most common cause of proptosis in adults. Thyroid antibodies (anti-TPO, TSH receptor antibodies) confirm autoimmune thyroid disease
• CRP and ESR — elevated in orbital cellulitis, orbital inflammatory disease, and vasculitis
• ACE (angiotensin-converting enzyme) — elevated in sarcoidosis, which can cause orbital masses and optic neuropathy
• ANA and anti-dsDNA — relevant in lupus, which can cause optic neuritis and orbital inflammation
• ANCA — granulomatosis with polyangiitis can affect the orbits
• IgG4 — elevated in IgG4-related orbital disease, a recently recognised cause of orbital masses
• Full blood count — lymphoma is a common cause of orbital masses and may show blood count abnormalities

Start with a Lola Health blood test to check your thyroid function (TSH, T3, T4), CRP, and ESR. If results suggest further investigation, a orbits & eye MRI can provide the structural detail your blood results can't show. Peak Insights 70 covers these markers across 70 biomarkers.

Combining orbital MRI with targeted blood tests helps distinguish between inflammatory, autoimmune, infectious, and neoplastic causes of orbital symptoms.

Explore Lola Health blood tests for thyroid, autoimmune, and inflammatory panels.

Considering a broader check? Read our full body MRI scan guide to see what a complete MRI screening covers, or explore the Peak 70 + Full Body MRI bundle for the most thorough health check available.

Frequently Asked Questions

Is an orbit MRI safe for the eyes?

Yes, provided there are no metallic foreign bodies in or near the eyes. The magnetic field and radio waves do not damage ocular tissues. If you've ever had metal in your eyes, inform the team.

Will I need to keep my eyes open during the scan?

No. You'll be asked to keep your eyes gently closed and still. This reduces motion artefact and is more comfortable.

Can an orbit MRI detect multiple sclerosis?

Orbital MRI can detect optic neuritis, which is often the first presentation of MS. If optic neuritis is found, a brain MRI is usually also performed to look for other MS lesions.

How long does the scan take?

Typically 25–40 minutes.

Is it painful?

No. The scan is completely painless.

Do I need a referral?

For a private orbit MRI through Lola Health, a referral isn't mandatory. However, clinical details are particularly important for orbital imaging, as the differential diagnosis is wide.

Can orbital MRI detect glaucoma?

MRI isn't the primary investigation for glaucoma — that's diagnosed with intraocular pressure measurement and optic disc assessment. However, MRI can show optic nerve damage in advanced cases.

Book Your Orbits MRI Scan

If you're experiencing visual symptoms, eye pain, or have a suspected orbital condition, an orbits MRI provides detailed, radiation-free imaging of the eyes and surrounding structures.