Dichoptic (from the

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

words δίχα ''dicha'', meaning "in two," and ὀπτικός '' optikos'', "relating to

sight Visual perception is the ability to interpret the surrounding Biophysical environment, environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the ...

") is viewing a separate and independent field by each eye. In dichoptic presentation, stimulus A is presented to the left eye and a different stimulus B is presented to the right eye.

Dichoptic moving images and games

Dichoptic perceptual training has been tested in order to stimulate the simultaneous use of both eyes. In recent years, efforts have been made to develop methods of

perceptual learning Perceptual learning is learning better perception skills such as differentiating two musical tones from one another or categorizations of spatial and temporal patterns relevant to real-world expertise. Examples of this may include reading, seeing ...

vision therapy Vision therapy (VT), or behavioral optometry, is an umbrella term for alternative medicine treatments using eye exercises, based around the pseudoscientific claim that vision problems are the true underlying cause of learning disabilities, parti ...

for treating interocular suppression and improving

binocular vision In biology, binocular vision is a type of vision in which an animal has two eyes capable of facing the same direction to perceive a single three-dimensional image of its surroundings. Binocular vision does not typically refer to vision where an ...

in patients with anisometropic or strabismic

amblyopia Amblyopia, also called lazy eye, is a disorder of sight in which the brain fails to fully process input from one eye and over time favors the other eye. It results in decreased vision in an eye that typically appears normal in other aspects. Amb ...

. In these methods, data has been presented within a

virtual reality Virtual reality (VR) is a simulated experience that employs pose tracking and 3D near-eye displays to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video games), educ ...

environment, and has also been presented using a computer screen or handheld device together with matched active or passive filter glasses for the user, which present a different image to each eye. In order to balance the input of visual information from each eye to the brain, the data is presented in such a manner that the user needs to use both eyes to see the complete scene. Furthermore, the stimulus offered to the weaker eye may be stronger, for example with stronger contrast, than the stimulus for the stronger eye. Some of these methods involve the use of dichoptic computer games (such as the game Tetris). A dichoptic presentation of popular movies has also been proposed.

References

Further references

* Dictionary of Optometry and Visual Science, 7th edition. (2009) * Goldstein, E. B. (1989). ''Sensation and Perception''. 3rd edition. * The Chambers Dictionary. (1993). Optometry {{eye-stub

Dichoptic moving images and games

See also

References

Further references