Copyright information:Taken from "The influence of visible light exposure on cultured RGC-5 cells"Molecular Vision 2007;14():334-344.Published online 11 Feb 2007PMCID:PMC2254956. RGC-5 cells incubated in filtered light for 48 h showed an increased production of pro-apoptotic Bax and cleaved (17 kD) caspase-3 proteins compared with cells grown in the dark (A). Quantification by densitometric analysis of protein levels showed the effect to be significant in both cases (*p