Optic cup (anatomical)

The optic cup is the white, cup-like area in the center of the optic disc.^[1]

The ratio of the size of the optic cup to the optic disc (or cup-to-disc ratio) is measured to diagnose glaucoma.

References

Sclera	Episcleral layer • Schlemm's canal • Trabecular meshwork

Cornea	Limbus • layers (Epithelium, Bowman's, Stroma, Descemet's, Endothelium)

Choroid	Capillary lamina of choroid • Bruch's membrane • Sattler's layer

Ciliary body	Ciliary processes • Ciliary muscle

Iris	Stroma • Pupil • Iris dilator muscle • Iris sphincter muscle

Retina (inner)

Layers	Inner limiting membrane • Nerve fiber layer • Ganglion cell layer • Inner plexiform layer • Inner nuclear layer Outer plexiform layer • Outer nuclear layer External limiting membrane • Layer of rods and cones • Retinal pigment epithelium

Cells	Photoreceptor cells (Cone cell, Rod cell) → (Horizontal cell) → Bipolar cell → (Amacrine cell) → Retina ganglion cell (Midget cell, Parasol cell, Bistratified cell, Giant retina ganglion cells, Photosensitive ganglion cell) → Diencephalon: P cell, M cell, K cell Muller glia

Other	Macula (Foveola, Fovea centralis) • Optic disc (Optic cup)

Other

anat(g/a/p)/phys/devp/prot

noco/cong/tumr, epon

proc, drug(S1A/1E/1F/1L)