Ozempic (semaglutide) has been associated with reports of sudden vision loss, including Non-Arteritic Anterior Ischemic Optic Neuropathy (NAION) — a serious optic nerve condition that can cause permanent blindness.
As Ozempic use expanded rapidly beyond diabetes into weight loss, reports of unexpected and severe side effects have increased, prompting lawsuits and federal litigation focused specifically on vision loss.
What Is NAION and Why It Matters for Ozempic Users
NAION occurs when blood flow to the optic nerve is disrupted, causing:
- sudden, painless vision loss
- optic nerve damage
- irreversible visual field defects in many cases
There is no proven treatment to restore lost vision once NAION occurs.
Reported Vision Problems in Ozempic Users
Patients have reported:
- waking up with sudden blindness in one eye
- blurred or dim vision
- missing sections of vision
- permanent visual impairment
These events often occur without warning and may happen after weeks or months of Ozempic use.
Why Ozempic Is Being Scrutinized for Vision Loss
Medical experts are examining whether Ozempic may contribute to NAION through:
- blood pressure lowering effects
- dehydration from nausea and vomiting
- rapid metabolic and vascular changes
- interaction with pre-existing diabetic or vascular risk factors
Who May Be Most Vulnerable
Higher-risk Ozempic users include those with:
- diabetes
- hypertension
- sleep apnea
- cardiovascular disease
- history of smoking
- optic nerve anatomical risk
Many Ozempic users fit multiple risk profiles simultaneously.
Symptoms That Require Emergency Care
Seek immediate help if you experience:
- sudden loss of vision
- dark or blurry vision upon waking
- partial blindness
- loss of peripheral vision
- unexplained visual shadows
Delays can result in permanent vision loss.
Ozempic Vision Loss Lawsuits
Ozempic blindness lawsuits typically allege:
- failure to adequately warn of NAION risk
- inadequate disclosure of severe vision complications
- lack of guidance for high-risk patients
These cases are commonly handled within the GLP-1 Vision Loss (NAION) MDL, separate from GI injury cases.
➡️ MDL overview: MDL
Evidence Used in Ozempic NAION Claims
Important documentation includes:
- ophthalmology records
- optic nerve imaging
- visual field tests
- emergency visit records
- Ozempic prescription and dosage history
When to Start a Claim Review
You should consider a review if:
- you used Ozempic, AND
- you suffered sudden vision loss or NAION, AND
- vision did not return to baseline
➡️ Start here: File a Claim
Blindness caused by NAION is one of the most severe alleged side effects associated with Ozempic. Because the damage is often permanent, these claims are treated with the highest level of seriousness in ongoing litigation.
If you experienced sudden vision loss after using Ozempic, prompt medical and legal review may be essential.