(C) Quantification of dense Calb2+ cell bodies in the INL, total Slc18a3+ cell bodies, and Camk2a+ cell bodies in the INL. Error bars represent SD of measurements from three animals, and asterisks indicate significant differences between retinas of WT and the indicated genotypes (*, p <0.05; **; p <0.01; ANOVA and Tukey HSD test).