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What causes ION?

There are different risk factors for developing ION, including:

  • Older age (over age 50)
  • High blood pressure
  • Diabetes
  • Smoking
  • Arterial disease (clogged arteries)
  • Glaucoma (high intraocular pressure)
  • Migraine headaches
  • Temporal arteritis (inflammation of certain arteries, including those to the eye)

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.