Results 11 to 20 of about 151,048 (255)

Prevalence of color vision deficiency among primary school pupils in Duhok city, Kurdistan Region, Iraq

open access: yesAdvanced Medical Journal, 2022
Background and objectives: Color vision deficiency or color blindness is a difficulty in recognizing certain colors. The color vision deficient persons remain unmindful about their condition and only become aware accidentally when tested for color ...
Azad Jameel Hussein   +1 more
doaj   +1 more source

Color Vision in the Gas Station Workers of Isfahan City: A Quantitative Analysis With the Farnsworth D15 Color Test

open access: yesFunction and Disability Journal, 2020
Background and Objectives: The color vision evaluation of gas station workers in Isfahan City. Methods: This cross-sectional comparative study was performed on workers at gas stations in Isfahan; all the workers were men.
Jamileh Abolghasemi   +3 more
doaj   +1 more source

Prevalence of Color Vision Deficiencies

open access: yesOftalʹmologiâ, 2020
Purpose. The study of color deficiencies prevalence in young people, students of higher educational university.Materials and methods. The study was carried for the half year — fall semester. A total of 1,609 students were examined, aged 17–21. There were
I. A. Makarov
doaj   +1 more source

Color-discrimination threshold determination using pseudoisochromatic test plates

open access: yesFrontiers in Psychology, 2014
We produced a set of pseudoisochromatic plates for determining individual color-difference thresholds to assess test performance and test properties, and analyzed the results.
Kaiva eJurasevska   +8 more
doaj   +1 more source

Structural and Functional Characteristics of Color Vision Changes in Choroideremia

open access: yesFrontiers in Neuroscience, 2021
Color vision is considered a marker of cone function and its assessment in patients with retinal pathology is complementary to the assessments of spatial vision [best-corrected visual acuity (BCVA)] and contrast detection (perimetry).
Jasleen K. Jolly   +16 more
doaj   +1 more source

Influence of Color Vision Impairments on Shade Matching among Dental Students

open access: yesMedical Sciences Forum, 2023
This study examined the impact of color vision deficits on shade selection accuracy among 119 Portuguese dental students. Only males displayed color vision deficiencies (4/119).
Ana Mano Azul   +3 more
doaj   +1 more source

Molecular Genetics of Color Vision and Color Vision Defects [PDF]

open access: yesArchives of Ophthalmology, 2000
Color is an extremely important component of the information that we gather with our eyes. Most of us use color so automatically that we fail to appreciate how important it is in our daily activities. It serves as a nonlinguistic code that gives us instant information about the world around us.
M, Neitz, J, Neitz
openaire   +2 more sources

Wearable Improved Vision System for Color Vision Deficiency Correction

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2017
Color vision deficiency (CVD) is an extremely frequent vision impairment that compromises the ability to recognize colors. In order to improve color vision in a subject with CVD, we designed and developed a wearable improved vision system based on an ...
Paolo Melillo   +8 more
doaj   +1 more source

X link color blind: A systematic review of congenital color vision deficiency cognitively and neurologically [PDF]

open access: yesSHS Web of Conferences, 2023
Color vision deficiency (CVD) can affect people’s perception and limits what job they takes. In order to distinguish colors, different cones differ in spectral sensitivity to capture photons.
Cai Zeyu
doaj   +1 more source

Color vision in anterior ischemic optic neuropathy

open access: yesAmerican Journal of Ophthalmology Case Reports, 2020
Purpose: The non-arteritic form of anterior ischemic optic neuropathy (AION) is the most common acute optic neuropathy among individuals over the age of fifty, yet little is known about how the disorder affects color vision. We tested the hypothesis that
Stephen C. Pollock, Raymond E. Hubbe
doaj   +1 more source

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