Iba-1+ cell quantification in OS, OPL, and IPL. Each bar represents the mean ± SD of the sum of Iba-1+ cell number contained in the three retinal layers. ***P <0.001 versus naïve and contralateral retinas. *P <0.05 versus naïve retinas. (IPL: inner plexiform layer; OHT: ocular hypertension; OPL: outer plexiform layer; OS: photoreceptor outer segment).