See Also: optic nerve head(medicine)
drusen of the optic nerve head(medicine)
Optic nerve(health)
Optic nerve(medicine)
optic nerve hypoplasia(medicine)
optic nerve meningioma(medicine)
Optic nerve hypoplasia(health)
optic nerve drusen(medicine)
optic nerve glioma(medicine)
optic nerve diseases(medicine)

optic nerve head (medicine)


optic nerve head -->
optic disk


The portion of the optic nerve seen in the fundus with the ophthalmoscope. It is formed by the meeting of all the retinal ganglion cell axons as they enter the optic nerve. Because the retina at the optic disk has no photoreceptors there is a corresponding blind spot in the visual field.