Detailed analysis of the zebrafish eye showing specific atp11a expression in the photoreceptors, retinal pigment epithelium, and ciliary marginal zone. (A and B) atp11a expression observed in cryosections at 72 hpf. (C and D) atp11a expression at 96 hpf. (E) antisense and (F) sense probes of flat mount in situ hybridization of excised zebrafish eyes at the 72 hpf stage, further highlight atp11a expression in either the RPE and/or OPR while also illustrating expression in the CMZ. The lens and optic nerve (ON) are indicated for reference. RPE (retinal pigment epithelium), OPR (outer segment photoreceptor layer), IPR (Inner segment photoreceptor layer), CMZ (ciliary marginal zone).