H2O2 transport in the lenses of mouse models. A. H2O2 uptake by 1-month-old lenses of WT and AQP0+/− or 4-month-old lenses of WT and AQP5−/− exposed to 50μM H2O2 for 30 min., using a Fluorometric assay; B. Quantification of the H2O2 levels. C. Quantification of H2O2 transport (in 30 min.) in 4-month-old lenses of WT, AQP0+/−, AQP1−/−, AQP5−/− and GPX1−/−, using OxiRed probe and a Colorimetric Assay.