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Glucagon-Like Peptide-1 Receptor Agonist and Age-related Macular Degeneration: Adding to the Story

Ophthalmology·July 25
OphthalmologyLimited evidenceNeovascular Age-Related Macular DegenerationType 2 DiabetesEditorial CommentaryGLP-1 Receptor AgonistAdultOzempicDulaglutideEmpagliflozinExenatideGlipizideSemaglutideSitagliptin

Summary

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What was studied

This editorial commentary evaluates a large OHDSI network study (Cai et al.) examining whether semaglutide use in adults with type 2 diabetes is associated with a changed risk of neovascular age-related macular degeneration (NVAMD), compared with other GLP-1RAs (dulaglutide, exenatide) and non–GLP-1RA diabetes drugs (empagliflozin, sitagliptin, glipizide).

Key findings

No statistically significant difference in NVAMD risk was found between semaglutide and any comparator; however, despite ~228,000 semaglutide new users, only a maximum of 79 patients contributed to any single comparison, yielding hazard ratios ranging from 0.25 to 2.08 with 95% CIs as wide as 0.05–5.9—making clinically meaningful effects impossible to rule out.

Study limitations

- Study population skewed young (mean age 55–65 years), far below the ~75-year average onset of NVAMD, limiting event accrual and generalizability. - Up to 3 of 4 meta-analyses relied almost exclusively on a single database after others failed diagnostic criteria, despite 12 databases enrolled. - Dose-response analysis and baseline non-neovascular AMD status were not assessable from administrative data.

Clinical implications

This study does not establish a large increase or decrease in NVAMD risk with semaglutide in diabetic patients, but the wide confidence intervals mean a doubling or halving of risk cannot be excluded. Clinicians should await studies in older populations (≥70 years) before drawing firm conclusions, especially for patients using semaglutide for weight loss or non-diabetic indications.

Related Questions

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Does semaglutide increase or decrease the risk of neovascular AMD in older adults?GLP-1 receptor agonists and age-related macular degeneration risk or outcomesGLP-1 receptor agonists and retinal disease: what does the current evidence show?semaglutide or liraglutide effects on retinal diseaseHow does semaglutide compare to other diabetes drugs for ocular safety outcomes?GLP-1 agonists and ocular complications in diabetic patients

Publication Details

Year
2026
Journal
Ophthalmology
Sample Size
n=900,000
Source
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