Figure 8.
Schematic depicting the behavior of liposomes. Neutral liposomes localize at the surface mostly, and penetrate to a small extent, releasing ranibizumab which is then transported trans-sclerally. On the other hand, negatively charged liposomes penetrate intrasclerally and release the ranibizumab which then diffuses across the sclera. Positively charged liposomes, on the other hand remain localized episclerally and release the ranibizumab which diffuses across the sclera.