Differential Performance of Xanthophylls in Combination with Phenol Classes against H₂O₂‐Induced Oxidative Stress: An In Vitro Analysis Using Retinal Pigment Epithelial Cells

Xanthophylls, vital for ocular defense against blue light and reactive oxygen species, are prone to oxidative degradation; however, they may be regenerated antioxidant-rich plant phenols. Despite certain in vitro evidence, clinical studies show inconsistent findings and this may be due to varying phenolic reduction potentials. Therefore, the current study aims to investigate the ocular protective effect of various plant phenols combined with xanthophyll.