Expression analysis of relevant marker genes of retinal cells by qRT-PCR in control along with 1 and 3 months of HCQ-treated mice (n = 6). The result shows significant difference in markers of rods (Sag1), cones (Opn1mw, Arr3) and bipolar cells (Pkcα) of the retina along with retinal pigment epithelium (RPE) marker Rpe65 in the treated retina. (Values are mean ± SEM, *p < 0.05, **p < 0.01, ***p < 0.001)