Results 241 to 250 of about 198,553 (292)

Vision in near-head space

, 2005
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DEFECTS OF NEAR VISION IN MYASTHENIA GRAVIS

Lancet, The, 1965
N, MANSON, G, STERN
exaly   +3 more sources

Occupational testing of near vision

Ophthalmic and Physiological Optics, 1994
The quality of near vision depends on distance visual acuity, accommodation capability and near vision correction, and cannot therefore be expressed in acuity values. Most near vision tests do not recognize this, and the lack in standardization should lie mainly attributed to this fundamental shortcoming.
J J, Vos, P, Padmos, J, Boogaard
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Altered vision near the hands

Cognition, 2008
The present study explored the manner in which hand position may affect visual processing. We studied three classic visual attention tasks (visual search, inhibition of return, and attentional blink) during which the participants held their hands either near the stimulus display, or far from the display. Remarkably, the hands altered visual processing:
Richard A, Abrams, Christopher C, Davoli, Feng, Du, William H, Knapp, Daniel, Paull   +4 more
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Optical Problems and near Vision

American Orthoptic Journal, 1999
Burton J Kushner
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Paralysis of the near-vision triad in a child

Journal of American Association for Pediatric Ophthalmology and Strabismus, 2009
The near-vision triad, or complex, consists of convergence, miosis, and accommodation. Neuronal pathways that control each of these components are distinct but interrelated. Abnormalities affecting 1 or more components of the complex may present as eye pain, headache, blurred vision, or diplopia at near fixation.
Mihir, Kothari, Kruti, Mody, Jaydeep, Walinjkar, Jigna, Madia, Shalini, Kaul   +4 more
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The Measurement and Recording of Vision at Near Test Distances∗

American journal of optometry and physiological optic, 1976
ABSTRACT Confusion and misconceptions characterize the designation of near visual acuities because of the numerous systems in use. Most of these systems do not lend themselves to accurate or easy usage or to comparison with other test distances.
E B, Mehr, A N, Freid
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Near vision, lags of accommodation and myopia

Ophthalmic and Physiological Optics, 1999
Summary It is shown that, with some simplifying assumptions about the nature of the accommodation response/stimulus curve, geometrical optics predicts that lags in accommodation will result in ocular modulation transfer for any linear size of grating component in an object being independent of object distance.
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Information Processing in Near Peripheral Vision

The Journal of General Psychology, 1984
The present study required that Ss name briefly exposed single lower-case letters that were presented at a total of 24 locations (8 meridians X 3 retinal eccentricities, 0.5 degrees, 2.75 degrees, and 5.0 degrees from a central fixation point, 0 degrees).
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