Figure 3: Normalized values of the concentration of total protein (μg/μl) and of growth factors and endostatin (pg/μg of total protein) at different re-hydration times over a 6 week period, with the minimum / maximum values of both samples and their lines of regression. a) Mean total protein levels in AM eye drops did not show significant variation over 6 weeks for 20% AM eye drops (p=0.3894) and 30% AM eye drops (p=0.5364). b-f) The mean peptide levels in 20% and 30% eye drops for b) bFGF, c) endostatin, d) HGF, e) NGF and f) EGF, were similar throughout the 6 weeks.