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

Optic Nerve Health

About this site

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

Optic Nerve Health is an education site from Dr. James Deom, OD, MPH, FAAO, Chief of Eye Care Services at Eye Specialists of NEPA. The practice has five offices: Hazleton, Stroudsburg, Nanticoke, Pottsville, and Bangor.

The first pages focus on GLP-1 medicines and NAION (non-arteritic anterior ischemic optic neuropathy). Pages on other optic nerve conditions are being added. The site is written for the public, for prescribers, and for eye doctors.

Dr. Deom served as president of the Pennsylvania Optometric Association in 2024.

How medical pages are reviewed

Medical pages show a “last reviewed” date and, where applicable, a reviewer byline. Content is for education. It is not medical advice and does not replace an examination or a conversation with a patient’s own clinicians. Numbers are taken from cited sources. This site does not invent statistics and does not use “first,” “only,” or “best” claims.

Positions of regulators and professional groups — including the FDA, the European Medicines Agency, the American Academy of Ophthalmology, the North American Neuro-Ophthalmology Society, and the American Optometric Association — are summarized with citations and are kept separate from Dr. Deom’s clinical opinion, which is labeled as such.

A longer review-policy page, a conflicts-of-interest statement, and a fuller About Dr. Deom biography are still to be written.

News

Contact

General contact: Hazleton Eye Specialists, 281 Airport Road, Hazle Township, PA 18202. Phone 570-453-2020. Fax 570-453-1020.

Referring providers: for a same-day evaluation, call or text Dr. Deom’s cell at 570-436-1930.

Office addresses and numbers for all five locations are on Find an Eye Doctor. Practice location pages: drkislan.com/our-locations.

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. Do not start, stop, or change any medicine without talking to the clinician who prescribes it. If you have sudden vision loss, seek same-day care from an eye doctor or an emergency department.