bn:00058587n
Noun Concept
Categories: long volume value, Articles with short description, Sensory organs, Invertebrates, Visual system
EN
simple eye  stemma  ocellus  simple eye in invertebrates  Pigment Pits
EN
An eye having a single lens WordNet 3.0
Definitions
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EN
A simple eye refers to a form of eye or an optical arrangement composed of a single lens and without an elaborate retina such as occurs in most vertebrates. Wikipedia
Simple eye found in invertebrates, in which pigment is distributed randomly and for which there are no additional structures. It is not to be confused with the ocelloid, a light-sensitive structure found in some dinoflagellates. Wikipedia Disambiguation
A simple eye consisting of a single lens and a small number of sensory cells. Wiktionary
Simple eye consisting of a single lens. Wiktionary (translation)