Results 251 to 260 of about 1,265,278 (300)

Visual Fields: Visual Field Test Strategies

2009
The question can be answered in many ways. First of all, there are visual field devices used to perform automated static perimetry and those for manual kinetic perimetry. Automatedtests utilize computer programs to vary test speed, target size, and luminance.
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Visual Field Testing With Red Targets

Archives of Ophthalmology, 1983
Ten patients with partial temporal visual field defects were examined with a modified tangent screen projection perimeter (Auto-Plot). Defects demonstrated with an isopter for chromatic recognition of a 3-mm red stimulus could always be reproduced with an isopter for achromatic recognition of a dim, 3-mm white stimulus.
J S, Mindel, A, Safir, P W, Schare
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SITA visual field testing in children

Journal of American Association for Pediatric Ophthalmology and Strabismus, 2001
The Swedish Interactive Thresholding Algorithm (SITA) is a new testing strategy for the Humphrey perimeter. The standard SITA algorithm shortens test time in adults without increasing variability, but its usefulness for detecting field defects in children has not been investigated.We evaluated 92 standard SITA 24-2 visual fields of children, most of ...
S P, Donahue, A, Porter
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Reliability of Simultaneous Visual Field Testing

Ophthalmology, 2012
To test for differences in reliability and performance between traditional, isolated perimetry and simultaneous testing with 2 patients in the same room.Comparative case series.A total of 471 eyes of 261 subjects.Consecutive patients undergoing Humphrey visual field (VF) testing in the Kellogg Eye Center glaucoma clinic were screened.
Benjamin C, Kramer, David C, Musch, Leslie M, Niziol, Jennifer S, Weizer   +3 more
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Objective Visual Field Testing

JAMA, 1963
THE VALUE OF visual field testing is well established in the fields of ophthalmology, neurology, neurosurgery, and internal medicine. The time-consuming nature of this subjective test, with its inherent inaccuracies in patients unable to cooperate fully, is familiar to most clinicians.
R M, COPENHAVER, G D, BEINHOCKER
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TESTING VISUAL FIELDS BY FLICKER FUSION

Archives of Neurology And Psychiatry, 1951
THE CRITICAL rate at which a flickering light of decreasing frequency is first perceived to flicker is the one test of visual function in which the light-adapted eye is more sensitive at the periphery of the retina than at its center. Previous investigators have agreed that flicker fusion fields are sensitive and "typical" in neurological lesions ...
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Confrontation visual field tests

Ophthalmic and Physiological Optics, 1997
D B, Elliott, I, North, J, Flanagan
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Confrontation visual field testing: detecting gross visual field defects

International Journal of Ophthalmic Practice, 2011
Performing confrontation visual fields is a quick and relatively easy way of detecting gross visual field defects. It requires little or no special equipment and can be performed in practically any situation, including during domiciliary visits. The practitioner should be familiar with the types of confrontation visual field tests and their uses and ...
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Selecting visual field tests and assessing visual field deterioration in glaucoma

Canadian Journal of Ophthalmology, 2014
Testing the peripheral field of vision is the mainstay for detection of glaucoma deterioration. Various methods and algorithms are currently available for detection of early glaucoma or establishing disease progression. Alternative testing strategies such as frequency doubling technology perimetry or short-wavelength automated perimetry have been ...
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Programmed visual field testing.

Transactions of the American Ophthalmological Society, 1983
The use of programmed static spot-checking is remarkably accurate in detecting the presence of visual field defects, even the earliest abnormality, provided the correct stimulus (or stimuli) is chosen to check an appropriate number of spots, and the location of each missed response is retested.
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