Results 11 to 20 of about 8,367,182 (364)

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

Effect of Fasting on Contrast Sensitivity in Healthy Males [PDF]

Journal of Ophthalmic & Vision Research, 2019
Purpose: To evaluate the effect of fasting on contrast sensitivity (CS) in healthy male individuals during the month of Ramadan. Methods: This study included 45 healthy male individuals, aged between 20 and 40 years, working in the same environment.
Zarife Ekici Gok, Abuzer Gunduz, Cem Cankaya   +2 more
doaj   +4 more sources

Contrast sensitivity functions in autoencoders [PDF]

Journal of Vision, 2021
Three decades ago, Atick et al. suggested that human frequency sensitivity may emerge from the enhancement required for a more efficient analysis of retinal images.
Qiang Li, Alex Gomez-Villa, M. Bertalmío, J. Malo   +3 more
semanticscholar   +1 more source

Erratum to “Effect of laser peripheral iridotomy on contrast sensitivity using Spaeth/Richman Contrast Sensitivity test” [PDF]

Therapeutic Advances in Ophthalmology, 2023
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

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