Figure 4. Determination of oxygen content within retinal explants. Mean oxygen saturation increased from time zero to 24 h in media alone (control), from 15.5% ± 3.8 and 22.3%± 2.6, (p<0.001) and in the matrices from 10% ± 4.6 to 13% ± 6.1 respectively (p<0.05; n=6).