http://blog.addgene.org/hs-fs/hubfs/10_16_to_12_16/viralServiceGeneralPost_TJF_2016_11_9/AAV%20Infection%20of%20Retinal%20Neurons%20Captioned-01.png?t=1503511317323&amp;width=200&amp;name=AAV%20Infection%20of%20Retinal%20Neurons%20Captioned-01.png