ends during starts during death eye photoreceptor cell retinal rod cell One of the two photoreceptor cell types of the retina. In rods the photopigment is in stacks of membranous disks separate from the outer cell membrane. Rods are more sensitive to light than cones, but rod mediated vision has less spatial and temporal resolution than cone vision. eye photoreceptor cell (rod) XAO:0004112 xenbase3 2011-08-25T10:22:13Z xenopus_anatomy rod photoreceptor cell CL:0000604 NF stage 42