Non-arteritic anterior ischaemic optic neuropathy (NAION) is the most common acute optic neuropathy in older individuals but may also occur in younger patients. A 30-year-old man presented with a 2-day history of right eye painless vision loss and was found to have right optic disc oedema and a left ‘disc-at-risk’. He was diagnosed with right NAION and review of symptoms revealed witnessed apnea at night and episodes where he woke up gasping for air, concerning for obstructive sleep apnea (OSA). A formal sleep study revealed severe OSA and he was treated with continuous positive airway pressure to reduce his risk of fellow eye involvement and reduce his overall cardiovascular risk. OSA should be considered in every patient with NAION, especially in younger patients without any additional risk factors.
- visual pathway
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Contributors SL and JAM: conception and design, analysis of data and final approval. SL: draft of the article. JAM: critical analysis.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Obtained.
Provenance and peer review Not commissioned; externally peer reviewed.
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