Retinal Correspondence
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Retinal correspondence is the inherent relationship between paired
retina The retina (from la, rete "net") is the innermost, light-sensitive layer of tissue of the eye of most vertebrates and some molluscs. The optics of the eye create a focused two-dimensional image of the visual world on the retina, which then ...
l visual cells in the two
eye Eyes are organs of the visual system. They provide living organisms with vision, the ability to receive and process visual detail, as well as enabling several photo response functions that are independent of vision. Eyes detect light and conv ...
s. Images from one object stimulate both cells, which transmit the information to the
brain A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a v ...
, permitting a single visual impression localized in the same direction in space.Cassin, B. and Solomon, S. ''Dictionary of Eye Terminology.'' Gainesville, Florida: Triad Publishing Company, 1990.


Types

Normal retinal correspondence (NRC) is a binocular condition in which both
fovea Fovea () (Latin for "pit"; plural foveae ) is a term in anatomy. It refers to a pit or depression in a structure. Human anatomy *Fovea centralis of the retina * Fovea buccalis or Dimple * Fovea of the femoral head * Trochlear fovea of the fr ...
s work together as corresponding retinal points, with resultant images fused in the
occipital cortex The occipital lobe is one of the four major lobes of the cerebral cortex in the brain of mammals. The name derives from its position at the back of the head, from the Latin ''ob'', "behind", and ''caput'', "head". The occipital lobe is the vi ...
of the brain. Abnormal retinal correspondence (ARC), also called ''Anomalous retinal correspondence'' is binocular sensory adaptation to compensate for a long-standing eye deviation (i.e. strabismus). The fovea of the straight (non-deviated) eye and non-foveal retinal point of the deviated eye work together, sometimes permitting single binocular vision.


See also

* Bagolini Striated Glasses Test * Binocular vision * Haploscope * Stereopsis * Orthoptist


References

{{Reflist


External links

* Bhola, Rahul.
Binocular Vision.
' University of Iowa Department of Ophthalmology & Visual Sciences: EyeRounds.org. January 23, 2006.
International Orthoptics Association

Orthoptics Association of Australia
Vision