Could Wegovy Raise Optic Nerve Risk? - Summary - MDSpire

Could Wegovy Raise Optic Nerve Risk?

A pharmacovigilance analysis of FDA adverse event reports finds the strongest ischemic optic neuropathy reporting signal with high-dose semaglutide formulations, with higher adjusted odds reported in men.

  • By

  • Kerri Miller

  • March 11, 2026

  • 5 min

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Objective:

To evaluate the association between semaglutide formulations and the risk of ischemic optic neuropathy (ION) using a global pharmacovigilance analysis from December 2017 to the present.

Key Findings:
  • Wegovy (2.4 mg) showed a 4.7-fold higher odds of ION reports compared to Ozempic (1 mg) among a total of 31,774 semaglutide reports.
  • Men had 3.3-fold higher odds of reported ION than women.
  • No ION reports were identified with oral semaglutide (Rybelsus).
  • Tirzepatide and comparator drugs showed no meaningful ION reporting signals.
Interpretation:

The stronger reporting signal for Wegovy may indicate dose-dependent effects on optic nerve perfusion, but causality cannot be established from this analysis.

Limitations:
  • FAERS is a spontaneous reporting database, limiting the ability to establish incidence or causality.
  • Lack of denominator data for true event rates.
  • Potential reporting bias and limited clinical information.
  • The retrospective nature of the study may affect the reliability of the findings.
Conclusion:

The findings suggest a need for individualized GLP-1 therapy and highlight the importance of conducting further studies to clarify the causal relationship between semaglutide and ION risk.

Original Source(s)

Could Wegovy Raise Optic Nerve Risk?

  • by Kerri Miller

  • March 11, 2026

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