Arteritic Anterior Ischemic Optic Neuropathy in Giant Cell Arteritis
Vision-threatening optic nerve infarction in temporal arteritis
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This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Göz Hastalıkları department. Book Appointment →
What is Arteritic Anterior Ischemic Optic Neuropathy in Giant Cell Arteritis?
Giant cell arteritis (GCA) is a granulomatous large-vessel vasculitis affecting individuals over 50 years (mean 70-75 years), with female predominance and association with polymyalgia rheumatica. Inflammatory destruction of the internal elastic lamina and intimal hyperplasia in medium-to-large arteries lead to occlusion. The most devastating ophthalmic complication is arteritic anterior ischemic optic neuropathy (AAION), causing sudden, painless, severe vision loss (often hand motions or worse).
Other ocular manifestations include posterior ischemic optic neuropathy, central retinal artery occlusion, cilioretinal artery occlusion, choroidal infarction, ocular ischemic syndrome, and ocular motor cranial neuropathies. Systemic features include new headache (temporal, severe), jaw claudication (highly specific), scalp tenderness, polymyalgia rheumatica (proximal stiffness), constitutional symptoms (fever, weight loss, night sweats, malaise), and elevated inflammatory markers (ESR > 50, CRP elevated).
Diagnosis combines clinical features (American College of Rheumatology criteria), elevated inflammatory markers, and definitive temporal artery biopsy showing granulomatous inflammation with multinucleated giant cells, internal elastic lamina disruption, and intimal hyperplasia. Vascular ultrasound (halo sign), MRI of cranial vessels, and PET-CT (large vessel involvement) are increasingly used. Immediate high-dose corticosteroids (oral prednisone 1 mg/kg or IV methylprednisolone pulse), tocilizumab (IL-6 receptor blocker), and supportive care are essential to prevent contralateral involvement.
Symptoms
Risk Factors
When to See a Doctor?
If you experience any of the following symptoms, seek medical attention promptly:
- Sudden, painless severe unilateral vision loss
- Patient over 50 years with new severe headache
- Jaw claudication
- Scalp tenderness
- Diplopia in elderly patient
- Polymyalgia rheumatica with new ocular symptoms
- Constitutional symptoms in elderly with vision changes
- Elevated ESR or CRP in elderly with headache
- Optic disc edema in elderly patient (urgent)
- Cranial neuropathy in elderly
- Stroke or transient ischemic attack in elderly with constitutional symptoms
- EMERGENCY: any suspicion of GCA requires immediate evaluation
Treatment Methods
Which Department to Visit?
You can visit our Göz Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.
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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.