simple eye

US /ˈsɪm.pəl ˌaɪ/
UK /ˈsɪm.pəl ˌaɪ/
"simple eye" picture
1.

occhio semplice, ocello

a small, simple eye found in many invertebrates, typically consisting of a few photoreceptor cells and a lens, capable of detecting light intensity but not forming detailed images

:
Insects often have both compound eyes and simple eyes (ocelli).
Gli insetti hanno spesso sia occhi composti che occhi semplici (ocelli).
The spider's simple eyes are primarily used for detecting changes in light and shadow.
Gli occhi semplici del ragno sono usati principalmente per rilevare i cambiamenti di luce e ombra.