AAV serotype 2 (AAV2) demonstrates a robust safety profile following subretinal delivery in clinical trials for Leber congenital amaurosis type 2.29, , –32 We generated AAV2 vectors expressing eGFP, human NRF2, or human SIRT1 driven by a ubiquitous promoter (Fig. 1A). Here, NFE2L2 is linked to Leber congenital amaurosis 2.