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Compound eyes

What do you mean by the compound eyes?

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Arthropods have compound eyes which are made up of several visual units known as ommatidia. Each ommatidium transmits visual information through optic nerve to the brain that interprets the image. Since they are round and numerous, ommatidia, whose external surfaces point the different directions thus forming the independent images, causing the arthropod eyes having the large visual field, greater than the visual field of vertebrates. Some of the insects have one or more simple eye besides their pair of compound eyes.

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