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Magnetic Resonance Imaging (MRI) of the Orbits Without Contrast

Published: August 9, 2026Updated: August 16, 2026

An MRI uses magnetic fields and radio waves to create detailed images of the eye sockets and nearby tissues without injecting contrast dye.

Quick summary

["This painless imaging test evaluates the eye sockets, eyeballs, optic nerves, and nearby tissues without contrast dye."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
36872-0
Short code
MR Orbit WO contr
Synonyms
MR Orbit WO contr
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

MRI of the orbits is an imaging test of the eye sockets and the structures within them, including the eyeballs, optic nerves, and extraocular muscles. This version is performed without intravenous contrast dye.

Why might I need this test?

Your clinician may order this test to evaluate unexplained visual changes, eye pain, swelling, or symptoms involving the nerves and muscles around the eyes. It may also help assess inflammation, infection, trauma, cysts, tumors, or other abnormalities in the orbital area.

How is the test performed?

You will lie on a padded table that moves into a large MRI scanner. The scanner uses magnetic fields and radio waves to produce images, and you may hear knocking or other loud sounds during the scan. No contrast dye is injected for this test.

How do I prepare for the test?

Tell the imaging staff about any metal in your body, including implants, piercings, hearing devices, or a pacemaker. Remove makeup, jewelry, and other metal-containing items, and follow the facility's instructions about eating, medications, and driving.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

MRI of the orbits without contrast

Frequently asked questions

Is orbital MRI painful?
MRI is generally painless because it does not use X-rays or an injection. Some people feel anxious in the narrow scanner, so tell the staff if you are claustrophobic.
Why is no contrast dye used?
The name specifies that the examination is performed without contrast. If contrast is needed to evaluate a particular finding, your clinician may order a separate or additional imaging study.
How long does the test take?
The exact time varies by facility and the area being scanned. Plan to allow extra time for check-in, safety screening, and preparation.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy