Sudden vision loss in one eye needs same-day care. Call an eye doctor or go to the emergency department.

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Review policy

How pages on this site are written, sourced, and kept current

Reviewed by Dr. James Deom, OD, MPH, FAAO, FSLS, Chief of Eye Care Services, Hazleton Eye Specialists Last reviewed: November 12, 2026

Same-day care

Sudden vision loss in one eye needs same-day care.

Call an eye doctor or go to the emergency department.

Who reviews the content

Every medical page is reviewed by Dr. James Deom, OD, MPH, FAAO, FSLS, Chief of Eye Care Services, Hazleton Eye Specialists. Each page shows who reviewed it and the date it was last reviewed.

Sources we use

In order of preference: 1. Regulators: U.S. Food and Drug Administration (FDA), European Medicines Agency (EMA), World Health Organization (WHO), and product labeling 2. Professional societies: American Academy of Ophthalmology (AAO), North American Neuro-Ophthalmology Society (NANOS), American Optometric Association (AOA), and specialty guidelines such as those of the American College of Rheumatology 3. Peer-reviewed research: randomized trials, systematic reviews, and large cohort studies, cited with journal, year, and a link

Numbers on the site are cited to their sources. We do not publish statistics we cannot trace to a source. When studies disagree, we say so and show both sides; see the study comparison.

How opinions are labeled

Dr. Deom’s recommendation and his personal clinical thoughts are clearly labeled as his opinion and set apart from the evidence and from professional-society positions. Where his recommendation goes further than a professional society, the page says so.

When pages are reviewed

  • When a regulator, major professional society, or large peer-reviewed study changes the evidence, affected pages are re-reviewed and logged on What’s new.
  • Every medical page is re-reviewed at least once a year.
  • The “last reviewed” date changes only when a page has actually been reviewed.

How pages are prepared

Drafts may be prepared with the help of research and writing tools. Every page is checked against its cited sources and reviewed by Dr. Deom before publication.

Corrections

If you see an error, please call Hazleton Eye Specialists at 570-453-2020 or fax 570-453-1020. Confirmed errors are corrected promptly, and significant corrections are noted on What’s new.

What this site is not

This site is for education. It does not provide medical advice or diagnosis, does not collect patient information, and does not replace an examination. See Conflicts of interest for disclosures.

Medical disclaimer. This site 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.