Foveal Vision

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Foveal Vision </dt>
Vision in which the eye is so oriented toward the pertinent light source as to have the light fall upon that central portion of the retina called the fovea. Also called photopic vision. </dd>
''
Foveal vision permits much higher resolution than does parafoveal vision and is the normal mode of seeing under daytime conditions. [[/a>|/a>]] </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use