Optic disc

The optic disc is the central part of the retina, which is the site where the photoreceptor cells of the retina exit and transmit excitation from them to the optic nerve. This area of ​​the retina occupies about a quarter of the retina's area and plays an important role in the formation of visual perception.

Functions of the optic disc include transmitting signals from photo

The optic disc is an ophthalmological term used to designate the corresponding portion of the optic nerve located in the plane of the pupil and surrounded by the vitreous body, after the departure of which there is a peripheral thickening of the nerve - the white arch of the optic nerve. On the optic nerve head is the macula - the retina, which includes photoreceptors (cones and rods) and bipolar neurosensory cells connected along an axon to ganglion cells.