the runners emerged from the trees into his clear vision
he had a visual sensation of intense light
Useful english dictionary. 2012.
visual sensation — perception of visible stimuli; experience resulting from the perception of visual stimuli; sight … English contemporary dictionary
reported visual sensation — (RVS) A term introduced in or shortly before 1960 by the American military research psychologists Thomas I. Myers and Donald B. Murphy in an attempt to operationalize what is actually measured in studies of visual hallucinations and visual… … Dictionary of Hallucinations
threshold of visual sensation — the least possible amount of stimulus that gives rise to the sensation of sight … Medical dictionary
Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… … Wikipedia
Visual Angle Illusion — The visual angle, V degrees, subtended by a viewed object sometimes looks larger or smaller than its actual value, creating a visual angle illusion (V illusion).These V illusions have been explicitly described by many vision researchers,… … Wikipedia
visual perseveration — Also known as perseveration. Both terms are indebted to the Latin verb perseverare,which means to maintain or to keep on stating. The term visual perseveration was introduced in or shortly before 1949 by the British neurologist Macdonald… … Dictionary of Hallucinations
Visual field — The entire area that can be seen when the eye is directed forward, including that which is seen with peripheral vision. The visual field can be tested to measure the extent and distribution of the field of vision. The test may be done by a number … Medical dictionary
reported auditory sensation — (RAS) A term introduced during the early 1960s in an attempt to operationalize what is actually measured in studies of auditory hallucinations and auditory imagery. For a discussion of the rationale behind the introduction of this notion, see… … Dictionary of Hallucinations
phosphene — Sensation of light produced by mechanical or electrical stimulation of the peripheral or central optic pathway of the nervous system. [G. phos, light, + phaino, to show] accommodation p. a p. occurring during … Medical dictionary
epistemology — epistemological /i pis teuh meuh loj i keuhl/, adj. epistemologically, adv. epistemologist, n. /i pis teuh mol euh jee/, n. a branch of philosophy that investigates the origin, nature, methods, and limits of human knowledge. [1855 60; < Gk… … Universalium
