Results 21 to 30 of about 6,621,534 (346)
Stimulus-dependent contrast sensitivity asymmetries around the visual field
bioRxiv, 2020 Asymmetries in visual performance at isoeccentric locations are known as performance fields. At a fixed eccentricity, visual performance is best along the horizontal, intermediate along the lower vertical, and poorest along the upper vertical meridian ...
M. Himmelberg, J. Winawer, M. Carrasco
semanticscholar +1 more source
Spatio-chromatic contrast sensitivity under mesopic and photopic light levels
Journal of Vision, 2020 Contrast sensitivity functions (CSFs) characterize the sensitivity of the human visual system at different spatial scales, but little is known as to how contrast sensitivity for achromatic and chromatic stimuli changes from a mesopic to a highly photopic
S. Wuerger +5 more
semanticscholar +1 more source
Photonics, 2022 Peripheral retinal contrast reduction is suggested as a potential myopia control strategy. However, the underlying mechanism is yet unknown. Therefore, this study investigated the influence of peripheral contrast reduction on central chromatic and ...
Antonia Neumann +6 more
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Digital contrast sensitivity chart with varying visual acuity: Development and validation
Oman Journal of Ophthalmology, 2023 BACKGROUND: Contrast sensitivity (CS) evaluation is very much necessary for the diagnosis and management of eye conditions. Several disadvantages seen in the traditionally used Pelli-Robson (PR) chart persuaded us to develop a novel digital device for ...
Prateeksha G Hegde +3 more
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Türk Oftalmoloji Dergisi, 2013 Purpose: To evaluate the effects of different lens designs on visual quality among soft spherical contact lens users. Material and Method: Forty eyes of twenty patients from our contact lens unit were included in this study.
Mustafa Demir +2 more
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The contrast sensitivity of the cat
The Journal of Physiology, 1973 1. The experiments were carried out on pretrigeminal cats.2. By recording potentials evoked from the visual cortex by a grating stimulus, it was established that there was a linear relation between the voltage generated and the logarithm of the contrast of the grating.3.
CAMPBELL FW, MAFFEI L, PICCOLINO, Marco
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Sensitivity to Auditory Velocity Contrast [PDF]
Scientific Reports, 2016 AbstractA natural auditory scene often contains sound moving at varying velocities. Using a velocity contrast paradigm, we compared sensitivity to velocity changes between continuous and discontinuous trajectories. Subjects compared the velocities of two stimulus intervals that moved along a single trajectory, with and without a 1 second inter stimulus
Shannon M. Locke +2 more
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Impact of Dry Eye on Visual Acuity and Contrast Sensitivity: Dry Eye Assessment and Management Study
Optometry and Vision Science, 2019 Supplemental digital content is available in the text. SIGNIFICANCE Identification of the association of specific signs of dry eye disease with specific visual function deficits may allow for more targeted approaches to treatment.
L. Szczotka-Flynn +8 more
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Folia Medica Indonesiana, 2021 This study was to compare the effectiveness of hyperbaric oxygen therapy (HBOT) on contrast and macular light sensitivity improvement in dry type age-related macular degeneration (AMD) patients.
Indriani Kartika Dewi +2 more
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Contrast sensitivity at high velocities [PDF]
Vision Research, 1982 Measurements were made of the contrast required to see the direction of motion of drifting gratings (Part 1) and of moving bars (Part 2). The spatial frequency at which least contrast is required to see sinusoidal gratings decreases as their velocity increases, but peak sensitivity is identical at all velocities up to 800 deg/sec.
BURR, DAVID CHARLES, J. Ross
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