Conditions A–Z

Reviewed by James Deom, OD, MPH, FAAO, Chief of Eye Care Services. Last reviewed: November 11, 2026.

Detailed condition pages, each with a patient section and a clinician section, are still being written. Until those pages are published, the following related material is available:

• NAION risk factors
• GLP-1 medicines and your eyes
• Understanding the numbers
• Study comparison

Planned condition pages include:

• NAION (hub)
• Arteritic AION / giant cell arteritis
• Glaucoma
• Optic neuritis (MS, MOGAD, NMOSD)
• Papilledema and idiopathic intracranial hypertension
• Optic disc drusen (and PHOMS)
• Compressive optic neuropathy
• Hereditary optic neuropathies
• Toxic and nutritional optic neuropathy
• Traumatic optic neuropathy
• Posterior ischemic optic neuropathy

Medical disclaimer. This page is for general education only. It is not medical advice and does not replace an examination or a conversation with your own doctors. If you have sudden vision loss, seek same-day care from an eye doctor or an emergency department.