photoreceptors

medical eyesight cones retinal detachment light microscope biological rods outer segment night vision rod eye vector pigment epithelium disease mitochondria diagram microscopy macula optical rode cone human physiology photoreceptor receptor lcone photoreceptors 3d rhodopsins scone black white structure retina mcone color cells histology iodopsin cornea visual cortex opsin anatomy anatomical ganglion cell optic nerve accommodation optometrist drawn rhodopsin bipolar science astigmatism phototransduction medicine health ophthalmologist biology sclera ophthalmology model ophthalmic photopic ocular