https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3705160/Effects of astaxanthin on antioxidation in human aqueous humor - PMC (nih.gov)  https://www.mayoclinic.org/diseases-conditions/blepharitis/symptoms-causes/syc-20370141Blepharitis - Symptoms and causes - Mayo Clinic  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7281326/Clinical Applications of Astaxanthin in the Treatment of Ocular Diseases: Emerging Insights - PMC (nih.gov)   https://www.naturalproductsinsider.com/healthy-aging/astaxanthin-healthy-agingHealthy aging and astaxantin (naturalproductsinsider.com)  https://www.wellnessresources.com/news/5-health-benefits-of-astaxanthin5 Health Benefits of Astaxanthin  https://pmc.ncbi.nlm.nih.gov/articles/PMC7980101/Carotenoids: Importance in Daily Life—Insight Gained from EPR and ENDOR