Results 1 to 10 of about 8,367,083 (265)

Predicting individual contrast sensitivity functions from acuity and letter contrast sensitivity measurements. [PDF]

Journal of Vision, 2016
Contrast sensitivity (CS) is widely used as a measure of visual function in both basic research and clinical evaluation. There is conflicting evidence on the extent to which measuring the full contrast sensitivity function (CSF) offers more functionally ...
Davey, Pinakin Gunvant, McCray, Kaydee Lynn, Paronian, Violeta, Seitz, Aaron R, Thurman, Steven M   +4 more
core   +2 more sources

Contrast sensitivities in the Gaia Data Release 2 [PDF]

A&A 621, A86 (2019), 2018
The source detection sensitivity of Gaia is reduced near sources. To characterise this contrast sensitivity is important for understanding the completeness of the Gaia data products, in particular when evaluating source confusion in less well resolved surveys, such as in photometric monitoring for transits.
Brandeker, Alexis, Cataldi, Gianni
arxiv   +3 more sources

Assessment of central and peripheral contrast sensitivity in myopes using Spaeth/Richman contrast sensitivity

Oman Journal of Ophthalmology
BACKGROUND: Assessing central and peripheral contrast sensitivity (CS) in myopic patients with varying degrees of refractive error using Spaeth/Richman contrast sensitivity test (SPARCS) and compared it with emmetropic individuals. MATERIALS AND METHODS:
Parul Ichhpujani, Uday Pratap Singh Parmar, Rohan Bir Singh, Suresh Kumar   +3 more
doaj   +2 more sources

Development of Dynamic Contrast Sensitivity Chart [PDF]

British and Irish Orthoptic Journal
Background: Dynamic visual acuity (DVA) is a complex visual function that requires the observer to detect a moving target, to visually acquire it by eye movements, and to resolve critical details contained in it, in a relatively brief time exposure ...
Nikhita Jacob, Vandana Kamath, B. N. Sanjay   +2 more
doaj   +2 more sources

Predicting contrast sensitivity functions with digital twins [PDF]

Scientific Reports
We developed and validated digital twins (DTs) for contrast sensitivity function (CSF) across 12 prediction tasks using a data-driven, generative model approach based on a hierarchical Bayesian model (HBM).
Yukai Zhao, Luis Andres Lesmes, Michael Dorr, Zhong-Lin Lu   +3 more
doaj   +2 more sources

Evaluating the Use of Contrast Sensitivity Tests By Orthoptists in the UK [PDF]

British and Irish Orthoptic Journal
Introduction: The importance of the use of contrast sensitivity (CS) tests in orthoptic practice is well established. However, despite the clinical relevance the implementation within clinical care is known to be variable. There are no known studies that
Lowri Jones, Anna O’Connor, Ashli Warburton   +2 more
doaj   +2 more sources

Motion processing deficits in migraine are related to contrast sensitivity [PDF]

Cephalalgia, 2012
Background: There are conflicting reports concerning the ability of people with migraine to detect and discriminate visual motion. Previous studies used different displays and none adequately assessed other parameters that could affect performance, such ...
Beaumont, H.M., Hine, T.J., Shepherd, Alex J.   +2 more
core   +2 more sources

Evaluation of contrast sensitivity in visually impaired individuals using K-CS test. A novel smartphone-based contrast sensitivity test-Design and validation. [PDF]

PLoS ONE
BackgroundTo describe the development and investigate the accuracy of a novel smartphone-based Contrast Sensitivity (CS) application, the K-CS test.MethodsA total of 67 visually impaired and 50 normal participants were examined monocularly using the ...
Vasileios Karampatakis, Eleni P Papadopoulou, Stavroula Almpanidou, Leonidas Karamitopoulos, Diamantis Almaliotis   +4 more
doaj   +4 more sources

Effect of astigmatism and spherical equivalent correction on contrast sensitivity [PDF]

International Journal of Ophthalmology
AIM: To investigate the effect of astigmatism and spherical equivalent (SE) correction on contrast sensitivity (CS). METHODS: In this cross-sectional study, 103 visually normal subjects aged 18 to 36y with bilateral regular astigmatism in range of 1.00 ...
Maryam Saffarizadeh, Saeed Rahmani, Alireza Akbarzadeh Baghban, Mohammad Ghassemi-Broumand   +3 more
doaj   +2 more sources

Octopaminergic modulation of contrast sensitivity

Frontiers in Integrative Neuroscience, 2012
Sensory systems adapt to prolonged stimulation by decreasing their response to prevailing stimulus conditions. Whereas visual motion adaptation has traditionally been studied in immobilized animals, recent work indicates that the animal’s behavioral ...
Roel ede Haan, Yu-Jen eLee, Karin eNordström   +2 more
doaj   +2 more sources