Ziyad Al-Aly, MD @zalaly · 04 May 2026
But was the signal real, or just noise from the way we defined NAION? We tested it three more ways: ▸ Diagnosed by an eye-care specialist: 8.7 extra cases per 10,000) ▸ Repeated NAION diagnoses: 6.4 extra cases per 10,000) ▸ Specialist-diagnosed plus repeated: 5.9 extra cases
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Is that a lot?
1.48×vs 10K–100K median1 456 views is typical
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