Ginkgo Biloba for Eye Health

Research suggests that Ginkgo biloba extract may offer protective benefits for eye health through antioxidant, anti-inflammatory, and neuroprotective mechanisms, with laboratory studies identifying specific compounds — particularly rutin and procyanidin B2 — as potentially responsible for shielding retinal cells from oxidative damage, and a 2025 cell culture study finding that GBE activated protective antioxidant pathways in retinal pigment epithelial cells relevant to macular degeneration. Several reviews, including a 2025 survey of clinical and preclinical evidence, characterize GBE as a candidate adjunct therapy for conditions like glaucoma, diabetic retinopathy, and age-related macular degeneration, with a 2005 perspective article noting it as among the best-supported natural compounds for glaucoma-related properties such as improved ocular blood flow and neuroprotection. However, clinical evidence remains limited and mixed — the most directly relevant human trial, a small 2025 randomized controlled study in glaucoma patients, found no meaningful improvement in retinal blood flow and noted a statistically significant decrease in perfusion around the optic nerve after four months of supplementation, raising questions about real-world efficacy. Across the body of evidence, reviewers consistently note that robust human clinical data are lacking, that most promising findings come from cell and animal studies, and that one animal study raised concerns about potential developmental harm at doses above standard therapeutic levels, underscoring the need for further rigorous research before firm conclusions can be drawn.