Total number of cones in the mouse retina.

Total number of cones quantified in individual retinas and their mean number ± standard deviation (SD). L-opsin: number of cones that express the L-opsin (L-opsin+cones: genuine-L and dual cones); S-opsin: number of cones that express the S-opsin (S-opsin+cones: genuine-S and dual cones). Both opsins: quantification of all-cones after double immunodetection of S- and L-opsins with the same fluorophore (all-cones: genuine-L, genuine-S, and dual cones). Last rows show the retinal area and the mean cone density across the retina. In addition are shown the maximum (max) and minimum (min) densities found. These values were extracted from the intense scrutiny carried out during the sampling method analysis (see figure 6), were samples of 0.05 mm2 were independently quantified. LR: left retina, RR: right retina. There are significantly more L-opsin+cones and all-cones in the pigmented than in the albino strain (Ttest, §p = 0.006, *p≤0.001, respectively) while for the S-opsin+cones is the reverse (#p = 0.01).