(A) RGC specific Thy1 antibody functionalized GNRs (labeled with Alexa 555-Red), MCO expression achieved by 800 nm CW laser (30 mW, 60 s) visualized by mCherry antibody staining (Green), 1 week after gene delivery. (B) Bipolar cell specific PKCα antibody functionalized GNRs (labeled with Alexa 488-Green), ON-bipolar cell specific MCO expression achieved by 850 nm CW laser (total dose =1800 mJ/mm2: 30 mW for 60 sec, 1 mm2 area) visualized by antibody staining (Red), 1 week after gene delivery. Scale bar: 50 μm. (C) The quantitative comparison of MCO (mCherry reporter) expression in RGC layer and INL versus non-targeted area. N=3 animals. *p<0.05