Transverse section of brain and eyes, Zebrafish model

Transverse section of brain and eyes of a zebrafish embryo 3 days post fertilization. The retinal ganglion cell layer of the retina and the optical neurons projecting to the optic tectum, the visual processing centre of the brain, are seen in green. Nuclei are counterstained with DAPI (magenta). Width of image is 500 micrometres.