Lens epithelial cell viability after UV irradiation. Cell viability of cultured human lens epithelial cells after UV irradiation was markedly increased with Epigallocatechin gallate (EGCG) administration group and was increased dose-dependent way. Basis (0) was group with UV irradiation without administration of EGCG. There was no significance between the time to administration of EGCG and the survival rate of cells (P=0.129). (A) 5 minutes after UV irradiation, (B) 1 hour after UV irradiation.