June 23, 2026 · American journal of ophthalmology · DOI: 10.1016/j.ajo.2026.06.037

Dopamine-Enhancing Therapies and Risk of Neovascular AMD Conversion: A Target Trial Emulation

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This study investigates whether dopamine-enhancing therapies, specifically levodopa ± carbidopa and dopamine receptor D2 (DRD2) agonists, are associated with a reduced risk of conversion from non-neovascular age-related macular degeneration (AMD) to neovascular AMD (nAMD). The findings indicate that levodopa ± carbidopa users experienced a significantly lower risk of conversion compared to matched controls, while no significant difference was observed for DRD2 agonist users. These results suggest that dopaminergic signaling may play a role in AMD progression, highlighting the need for further prospective research.

Owais Fazal, Asad Loya, Jawad Muayad, Amer F Alsoudi, Darius D Bordbar, Celine Chaaya, Christina Y Weng, Ehsan Rahimy, Nimesh A Patel

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