consist of a spherical cavity which is coated in photosensitive cells which respond to light which enters through a small hole in the top.

NAUTILUS EYE: "A nautilus eye is a cavity which is coated with photosensitive cells which will respond to light which is introduced through the top, similar to a camera."
Cite this page: N., Pam M.S., "NAUTILUS EYE," in, April 7, 2013, (accessed September 20, 2021).