foveal vision


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foveal vision

[¦fō·vē·əl ′vizh·ən]
(physiology)
Vision achieved by looking directly at objects in the daylight so that the image falls on or near the fovea centralis. Also known as photopic vision.
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Not surprisingly, individuals with unimpaired foveal vision use their fovea to scan text and fixate individual objects.
2008) so as to maximize their foveal vision, and this may be the most important intervention for these patients.
On the other hand, if good visual acuity indicates that foveal vision has been spared so far, one can use a central fixation mark.
When foveal vision is lost because of macula or optic nerve disease and a person looks "beyond" the object of regard to place the image on a viable area of the peripheral retina, it is considered eccentric viewing (Duke-Elder & Wybar, 1973; von Noorden, 1990).