This review, published in 2020, reviewed all the published evidence – preclinical and clinical – for the use of astaxanthin for ocular health. Preclinical evidence supports the use of astaxanthin in the prevention and treatment of glaucoma, cataracts, keratopathy and dry eyes.
References:
Giannaccare, G., Pellegrini, M., Senni, C., Bernabei, F., Scorcia, V., & Cicero, A. F. G. (2020). Clinical Applications of Astaxanthin in the Treatment of Ocular Diseases: Emerging Insights. Marine drugs, 18(5), 239. https://doi.org/10.3390/md18050239