Results 51 to 60 of about 1,210,014 (249)

Effects of Contrast Sensitivity on Colour Vision Testing [PDF]

Neuro-Ophthalmology, 2017
This study analyses how contrast sensitivity loss affects colour vision (CV) testing. Eleven participants were scored while cycling through randomly arranged pictures of CV tests with varying levels of contrast changes applied. Hardy-Rand-Rittler (HRR) scores declined significantly at each successive decrease in contrast level after the highest setting
Anvesh Annadanam, Jiawei Zhao, Jiangxia Wang, Allen O. Eghrari   +3 more
openaire   +2 more sources

Factors for Rituximab Refractoriness in AQP4‐IgG+ NMOSD: A Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuromyelitis optica spectrum disorder (NMOSD) is a severe autoimmune condition of the central nervous system (CNS), often associated with aquaporin‐4 antibodies (AQP4‐IgG). Rituximab, a CD20+ B‐cell depleting monoclonal antibody, is widely used as first‐line therapy.
Mariano Marrodan, María A. Piedrabuena, María A. Zarate, Sofía Rodríguez Murúa, Ezequiel I. Surace, Mauricio F. Farez, Marcela P. Fiol, María C. Ysrraelit, Jorge Correale   +8 more
wiley   +1 more source

How Much Pigment Should Flowers Have? Flowers With Moderate Pigmentation Have Highest Color Contrast

Frontiers in Ecology and Evolution, 2021
Floral pigments are a core component of flower colors, but how much pigment a flower should have to yield a strong visual signal to pollinators is unknown.
Casper J. van der Kooi
doaj   +1 more source

Adaptive polarimetric image representation for contrast optimization of a polarized beacon through fog

, 2015
We present a contrast-maximizing optimal linear representation of polarimetric images obtained from a snapshot polarimetric camera for enhanced vision of a polarized light source in obscured weather conditions (fog, haze, cloud) over long distances ...
Alouini, Mehdi, Fade, Julien, Panigrahi, Swapnesh   +2 more
core   +2 more sources

Experimental simulation of simultaneous vision [PDF]

, 2013
Purpose. To present and validate a prototype of an optical instrument that allows experimental simulation of pure bifocal vision. To evaluate the influence of different power additions on image contrast and visual acuity. Methods. The instrument provides
Dorronsoro, Carlos, Gracia, Pablo de, Marcos, Susana, Sawides, L., Sánchez-González, Alvaro   +4 more
core   +2 more sources

Current and Future Cornea Chip Models for Advancing Ophthalmic Research and Therapeutics

Advanced Biology, EarlyView.
This review analyzes cornea chip technology as an innovative solution to corneal blindness and tissue scarcity. The examination encompasses recent developments in biomaterial design and fabrication methods replicating corneal architecture, highlighting applications in drug screening and disease modeling while addressing key challenges in mimicking ...
Minju Kim, Kanghoon Choi, Amy Lin, Jungkyu Kim   +3 more
wiley   +1 more source

Assessing the monitor warm-up time required before a psychological experiment can begin [PDF]

Tutorials in Quantitative Methods for Psychology, 2017
Visual experiments in psychology, psychophysics, and cognitive neuroscience require precise control over stimulus characteristics, such as luminance and contrast. In such experiments, stimuli are most often presented using computer monitors.
Poth, Christian H., Horstmann, Gernot
doaj   +1 more source

Optimal measurement of visual motion across spatial and temporal scales [PDF]

, 2014
Sensory systems use limited resources to mediate the perception of a great variety of objects and events. Here a normative framework is presented for exploring how the problem of efficient allocation of resources can be solved in visual perception ...
A Gorban, A Gorban, A Jones, AB Watson, AJ Doorn van, AJ Doorn van, B Krekelberg, B Sakitt, CW Gardiner, CWG Clifford, D Gabor, D Marr, DH Kelly, DH Kelly, DJ Field, DM MacKay, DO Hebb, EL Bienenstock, EP Simoncelli, ET Jaynes, G Bi, HL Resnikoff, JG Daugman, K Nakayama, LA Lesmes, M Kubovy, M Vergassola, M Wertheimer, MJ Wainwright, MS Landy, O Paulsen, P Burt, P Jurica, RD Luce, S Gepshtein, S Gepshtein, S Gepshtein, S Gepshtein, S Gepshtein, S Marcelja, S Saremi, SB Laughlin, SB Laughlin, TM Cover, VD Glezer, Y Weiss, Y Yeshurun, Y Yeshurun   +47 more
core   +1 more source

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

Advanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong, Zhangbin Ji, Luke Haworth, Yihao Guo, Jaime del Moral, Stefan Jacob, Ana Borras, Agustin R. Gonzalez‐Elipe, Jikai Zhang, Jian Zhou, Glen McHale, Yong‐Qing Fu   +11 more
wiley   +1 more source

Evaluation of visual functions in Iranian hypothyroid adults

Endocrinology, Diabetes & Metabolism, 2023
Introduction The aim of this study was to investigate the effects of hypothyroidism on visual functions such as visual acuity, refractive errors, colour vision, and contrast sensitivity, among hypothyroid adults.
Somayyeh Boomi Quchan Atigh, Habibe Sadat Shakeri, Habibollah Esmaily, Azam Darvishi, Aghdas Hamidi, Javad Heravian Shandiz   +5 more
doaj   +1 more source