RLBP1 and myasthenia gravis: Although gene augmentation therapies of RLBP1 reveal visual improvement in preclinical models (Choi et al., 2015; MacLachlan et al., 2018), CMV promoter is applied to drive the expression of RLBP1 and thus it is difficult to dissect whether the therapeutic outcome is resulted from the improvement of RPE, MG, or both.