The<unk>  (or layer of<unk>  granules or external nuclear layer), is one of the layers of the vertebrate retina, the light-detecting portion of the eye. Like the inner nuclear layer, the<unk>  contains several strata of oval nuclear bodies; they are of two kinds, viz.: rod and cone granules, so named on account of their being respectively connected with the rods and cones of the next layer.
Outer nuclear layer
Inner nuclear layer
Nucleus 
Droplet nucleus
Marginal zone
Episcleral layer
Inner plexiform layer
Blue zone