visual organ

vis·u·al or·gan

the eye and its adnexa.
Farlex Partner Medical Dictionary © Farlex 2012
References in classic literature ?
In previous sections I have said that all figures in Flatland present the appearance of a straight line; and it was added or implied, that it is consequently impossible to distinguish by the visual organ between individuals of different classes: yet now I am about to explain to my Spaceland critics how we are able to recognize one another by the sense of sight.
Another whom I frequently met had the hollow of his eyes tattooed in two regular squares and his visual organs being remarkably brilliant, they gleamed forth from out this setting like a couple of diamonds inserted in ebony.
"Who can it be?" thought Hepzibah, who had been screwing her visual organs into the acutest focus of which they were capable.
Compound eyes are found in arthropods, such as insects and crustaceans, and are the most common visual organ seen in the animal kingdom.
Ocular funduscopy elicits important aspects in pathological status of visual organ. Moreover this is the only location in the body where blood vessels and central nervous system can be seen directly.
However, seeing as sensory capability is more than a representational function but generates performativity "of the limitations and subjectivity of perception" (Swann 181) because the eye for Page is not only a visual organ but also an extracting device, which expresses the poet's vision while concealing from sight what can be seen.
The rest of the figure's facial features (forehead, brow ridge, the bridge of the nose) are represented in abstract terms -- highlighting that the most recognizably human aspect of the figure is the visual organ. The briefly sighted thing to which the title refers would appear to be the sole signifier of its humanity, as represented in its eye.
"With one accord, ophthalmologists tell us that the visual organ of man was never intended for the uses to which it is now put," he wrote in his book, The Bates Method for Better Eyesight Without Glasses.
A rudimentary dorsal visual organ had a length one and a half times the diameter of the adjoining ocellus.
For example, as the perceiver comes to see something red, a part of the visual organ literally becomes red.