Results 41 to 50 of about 6,621,534 (346)
Contrast sensitivity abnormalities in deaf individuals
Journal of Ophthalmic & Vision Research, 2018 Purpose: Hearing impaired children are heavily dependent on their sense of vision to develop efficient communication skills; any contrast sensitivity defect can negatively impact their lives because they are not able to use auditory stimuli to recognize ...
Masoud Khorrami-Nejad +3 more
doaj +1 more source
The Evaluation of Yellow vs. Blue Color Contrast Sensitivity pre and Post LASIK [PDF]
Iranian Journal of Medical Physics, 2007 Introduction: contrast sensitivity is one of the most important psychophysical tests that may be used for the evaluation of refractive state of eye and retinal image quality. Yellow vs. blue color contrast sensitivity may be more suitable in this regard.
S. Heydarian +3 more
doaj +1 more source
Investigative Ophthalmology and Visual Science, 2015 PURPOSE Clinical evaluation of floaters lacks quantitative assessment of vitreous structure. This study used quantitative ultrasound (QUS) to measure vitreous opacities. Since floaters reduce contrast sensitivity (CS) and quality of life (Visual Function
J. Mamou +6 more
semanticscholar +1 more source
Comparing the Shape of Contrast Sensitivity Functions for Normal and Low Vision
Investigative Ophthalmology and Visual Science, 2015 Purpose The contrast sensitivity function (CSF) provides a detailed description of an individual's spatial-pattern detection capability. We tested the hypothesis that the CSFs of people with low vision differ from a “normal” CSF only in their horizontal ...
Susana T. L. Chung, G. Legge
semanticscholar +1 more source
Rhythmic Oscillations of Visual Contrast Sensitivity Synchronized with Action
Journal of Neuroscience, 2015 It is well known that the motor and the sensory systems structure sensory data collection and cooperate to achieve an efficient integration and exchange of information.
A. Tomassini +4 more
semanticscholar +1 more source
Contrast Sensitivity of the Motion System
Vision Research, 1996 A number of experiments were conducted to investigate how global-motion performance varies with luminance contrast. When all the dots in the stimulus were the same contrast, performance improved with increasing contrast up to about the 15% level (Experiment 1). Increasing the contrast beyond this level had no additional effect on performance.
Mark Edwards +2 more
openaire +3 more sources
Contrast sensitivity revealed by microsaccades.
Journal of Vision, 2015 Microsaccades are small rapid and involuntary eye movements that occur during fixation in an apparently stochastic manner. They are known to be inhibited in response to sensory transients, with a time course that depends on the stimulus parameters and ...
Y. Bonneh, Y. Adini, U. Polat
semanticscholar +1 more source
Effects of chronic browsing on life‐history traits of an irruptive large herbivore population
Population Ecology, EarlyView.This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji +9 more
wiley +1 more source
Contrast Enhancement Using Sensitivity Model-Based Sigmoid Function
IEEE Access, 2019 For indirect contrast enhancement, researchers have proposed various transformation functions based on histogram equalization and gamma correction.
Seung Park, Yong-Goo Shin, Sung-Jea Ko
doaj +1 more source
Contrast sensitivity and higher-order aberrations in Keratoconus subjects
Scientific Reports, 2021 This study analyzes the relationship between contrast-sensitivity and higher-order aberrations (HOA) in mild and subclinical-keratoconus in subjects with good visual-acuity (VA).
Einat Shneor +2 more
doaj +1 more source