Orbital myositis digital illustration

Orbital myositis Save

ICD-10 code: H05.12

Chapter: Diseases of the eye and adnexia

Understanding Orbital Myositis: Symptoms, Causes, and Treatment

Orbital myositis is a rare autoimmune disorder that affects the muscles of the eye socket. The condition causes inflammation and swelling of the muscles, leading to pain, double vision, and difficulty moving the eye. Orbital myositis can affect one or both eyes and may occur suddenly or develop gradually over time.

Here are some common symptoms of orbital myositis:

  1. Eye pain
  2. Double vision
  3. Blurred vision
  4. Difficulty moving the eye
  5. Swelling around the eye
  6. Redness of the eye

The exact cause of orbital myositis is unknown, but it is believed to be an autoimmune disorder, which means the body's immune system mistakenly attacks its own tissues. Some research suggests that infections or other environmental factors may trigger the immune response that leads to orbital myositis.

Diagnosing orbital myositis can be challenging because the symptoms can be similar to other eye conditions. Your doctor may perform a physical exam, blood tests, and imaging tests, such as an MRI or CT scan, to confirm the diagnosis.

Treatment for orbital myositis typically involves medications to reduce inflammation and suppress the immune system. Corticosteroids, such as prednisone, are commonly prescribed to reduce swelling and inflammation in the affected muscles. Immunosuppressive drugs, such as azathioprine or methotrexate, may be used to suppress the immune system and prevent further damage to the muscles.

In severe cases of orbital myositis, surgery may be necessary to relieve pressure on the optic nerve or correct double vision. However, surgery is usually a last resort and is only recommended if other treatments have been ineffective.

If you are experiencing symptoms of orbital myositis, it is important to seek medical attention promptly. Early diagnosis and treatment can help prevent complications and improve your overall outcome.