Macular Abnormalities Associated With 5α-Reductase Inhibitor

Short research letter from Samsung Medical Center (Sungkyunkwan University) reporting macular abnormalities associated with 5α-reductase inhibitor use. The SideFXHub article that surfaced it additionally leans on an unpublished South Bay Retina clinic investigation (Dr. Lynnette Nguyen) reviewing 28 finasteride users, in which most showed visual abnormalities including cystoid macular edema and optic nerve dysfunction — but that clinical investigation has no peer-reviewed citation; Shin et al. 2020 is the named, verified peer-reviewed source linking the drug class to macular findings.