Figure 5. Representative results of phosphate-buffered saline (PBS; A), blank-nanoparticles (NPs; B) pigment epithelium-derived factor (PEDF; C) and PEDF-NP- (D) treated eyes immunostained with an antibody to PEDF at 4 weeks. ILM; inner limiting membrane, GCL; ganglion cell layer, IPL; inner plexiform layer, INL; inner nuclear layer, ONL; outer nuclear layer. RPE: retinal pigment epithelium. A bar represents 50 µm.