Judge Orders Early Discovery in 130-Plus GLP-1 Vision Loss Suits
Updated
Updated · AboutLawsuits.com · Jul 16
Judge Orders Early Discovery in 130-Plus GLP-1 Vision Loss Suits
1 articles · Updated · AboutLawsuits.com · Jul 16
Summary
Judge Karen Marston ordered the Ozempic and Wegovy MDL to first test two threshold issues: whether GLP-1 drugs can cause NAION vision loss and whether federal law preempts failure-to-warn claims.
More than 130 lawsuits are pending against Novo Nordisk and Eli Lilly, with plaintiffs alleging the companies knew or should have known the drugs could trigger sudden, permanent vision damage.
Marston sided with defendants over plaintiffs’ push for full merits discovery, but said marketing discovery and plaintiff fact sheets can proceed so bellwether case selection can move quickly if early motions fail.
Defendants proposed fact discovery by October 2026, expert discovery by year-end 2026 and briefing on cross-cutting motions by the first quarter of 2027.
The vision-loss MDL remains separate from a larger GLP-1 gastrointestinal-injury proceeding before the same judge, which is running its own bellwether track.
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Ozempic and Wegovy Vision Loss Lawsuits: Scientific Evidence, Legal Battles, and the Future of GLP-1 Litigation (2026 Update)
Overview
As of July 21, 2026, the litigation over GLP-1 receptor agonists like Ozempic and Wegovy and their alleged link to vision loss (NAION) is still in its early stages, with no settlements or completed trials yet. Due to a growing number of similar lawsuits across federal districts, the court has adopted the Multidistrict Litigation (MDL) framework. This approach consolidates complex cases, streamlines discovery, avoids duplicative efforts, and ensures consistent rulings, helping to manage the legal process efficiently as these cases move forward through the courts.