Results 11 to 20 of about 6,621,534 (346)

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

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

Contrast sensitivity testing. [PDF]

British Journal of Ophthalmology, 1984
Albert Atkin, Iván Bódis-Wollner, Murray A. Wolkstein, S. M. Podos   +3 more
openalex   +4 more sources

Central and peripheral contrast sensitivity in thyroid eye disease [PDF]

Indian Journal of Ophthalmology
Purpose: Assessment of central and peripheral contrast sensitivity (CS) in thyroid eye disease (TED) with and without dysthyroid optic neuropathy (DON).
Kasturi Bhattacharjee, Obaidur Rehman, Parul Ichhpujani, Vatsalya Venkatraman   +3 more
doaj   +2 more sources

Visual acuity and contrast sensitivity of adult zebrafish

Frontiers in Zoology, 2012
Background The aim of this study was to evaluate the visual acuity of adult zebrafish by assessing the optokinetic reflex. Using a modified commercially available optomotor device (OptoMotry®), virtual three-dimensional gratings of variable spatial ...
Tappeiner Christoph, Gerber Simon, Enzmann Volker, Balmer Jasmin, Jazwinska Anna, Tschopp Markus   +5 more
doaj   +2 more sources

Measuring the Contrast Sensitivity Function in Non-Neovascular and Neovascular Age-Related Macular Degeneration: The Quantitative Contrast Sensitivity Function Test

Journal of Clinical Medicine, 2021
Age-related macular degeneration (AMD) affects various aspects of visual function compromising patients’ functional vision and quality of life. Compared to visual acuity, contrast sensitivity correlates better with vision-related quality of life and ...
Filippos Vingopoulos, K. Wai, Raviv Katz, D. Vavvas, L. Kim, John B. Miller   +5 more
semanticscholar   +1 more source

Assessing the contrast sensitivity function in myopic parafovea: A quick contrast sensitivity functions study

Frontiers in Neuroscience, 2022
PurposeCompare peripheral contrast sensitivity functions (CSF) between myopes and emmetropes to reveal potential myogenic risks during emmetropization.Materials and methodsThis observational, cross-sectional, non-consecutive case study included data from
Zixuan Xu, Yijing Zhuang, Zhipeng Chen, Fang Hou, Lily Y. L. Chan, Lei Feng, Qingqing Ye, Yunsi He, Yusong Zhou, Yu Jia, Junpeng Yuan, Zhong-Lin Lu, Zhong-Lin Lu, Zhong-Lin Lu, Jinrong Li   +14 more
doaj   +1 more source

Effect of laser peripheral iridotomy on contrast sensitivity using Spaeth/Richman Contrast Sensitivity test

Therapeutic Advances in Ophthalmology, 2022
Background: Laser peripheral iridotomy (LPI) is the current standard of care for primary angle-closure glaucoma. The existing literature lacks evidence regarding the effects of LPI on contrast sensitivity (CS) after the procedure.
Parul Ichhpujani, Sahil Thakur, Tanu Singh, Rohan Bir Singh, Suresh Kumar   +4 more
doaj   +1 more source

Normative database for Spaeth Richman contrast sensitivity test for Indian eyes

Indian Journal of Ophthalmology, 2022
Purpose: To ascertain normative database of contrast sensitivity (CS) using Spaeth/Richman CS test (SPARCS) in the Indian population. Methods: This cross-sectional study enrolled 200 healthy individuals, and CS was tested in both eyes of each participant
Sonia Bariya, Parul Ichhpujani, Obaidur Rehman, Suresh Kumar   +3 more
doaj   +1 more source