(i) Compound eyes of cockroach are large, black, kidney-shaped structure.
(ii) It is situated dorsolaterally on the head.
(iii) Eye consists of about 2000 similar hexagonal units called ommatidium, each capable of forming an image.
(iv) The eyes are covered externally with a transparent cuticle called the cornea.
(v) Each ommatidium is composed of corneal lens, distal pigment cells around the pigment cone.
(vi) It has retinule forming rhabdome and optic nerve.