20% 30% bFGF p=0.4609 p=0.5286 Endostatin p=0.3792 p=0.1982 HGF p=0.7926 p=0.2738 NGF p=0.8079 p=0.5387 EGF p=0.3817 p=0.6318

Table 2: The concentrations of growth factors and endostatin in both 20% and 30% AM eye drops were invariant over time. P values were derived from the regression of mixed models to determine differences which were statistically significant. All p values > 0.05, which was the limit considered to be statistically significant.