Astaxanthin (Natural) for Eye Health

Research suggests that astaxanthin, a potent carotenoid antioxidant, may support eye health through its antioxidant and anti-inflammatory properties, with one 2021 review of human clinical trials noting associations between astaxanthin supplementation and potential benefits for conditions such as glaucoma and cataracts. A 2022 review examining natural compounds for age-related eye disorders acknowledged astaxanthin and related antioxidants as part of a broader class of nutraceuticals showing promise, though it emphasized that combinations of compounds and conventional treatments may be needed for meaningful effect. Both sources are review articles rather than randomized controlled trials, which limits the strength of conclusions that can be drawn, and the 2022 review offered a more measured assessment by placing astaxanthin within a wider landscape of competing compounds with varying levels of evidence. Overall, the available literature is preliminary and directionally supportive but not conclusive, and further high-quality clinical trials would be needed to establish the specific role astaxanthin plays in eye health outcomes.