retina

retina

CEFR: C1-C2 /reti-na/ [r.eh1.t.ah0.n.ah0]

Definition: A layer at the back of the eyeball that contains cells sensitive to light, which trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.

Example Sentences:
The chip captures light that enters the eye, and generates an electrical signal that is transmitted to the overlaying neural cells of the retina.