Results 1 to 10 of about 2,036,611 (265)

Coloured filters can simulate colour deficiency in normal vision but cannot compensate for congenital colour vision deficiency [PDF]

open access: yesScientific Reports, 2022
Red-green colour vision deficiency (CVD) affects ~ 4% of Caucasians. Notch filters exist to simulate CVD when worn by colour vision normal (CVN) observers (simulation tools), or to improve colour discrimination when worn by CVD observers (compensation ...
Leticia Álvaro   +3 more
doaj   +14 more sources

Congenital Colour Vision Deficiency among Patients Attending Outpatient Department of Ophthalmology in a Tertiary Care Centre: A Descriptive Cross-sectional Study [PDF]

open access: yesJournal of Nepal Medical Association, 2022
Introduction: Congenital colour vision deficiency may affect a person’s day-to-day activity and may also affect the choice of occupation a person chooses.
Priyanka Shrestha   +1 more
doaj   +4 more sources

Prevalence and allele frequency of Congenital Colour Vision Deficiency (CCVD) among students at Hawassa University, Ethiopia [PDF]

open access: yesJournal of the Egyptian Public Health Association, 2020
Background The prevalence of congenital colour vision deficiency (CCVD) varies from race to race and differs in different geographic regions. Colour vision deficiency or colour blindness, is the inability or decreased ability of discriminating certain ...
Reta Gutema Mitiku   +2 more
doaj   +2 more sources

Colour vision deficiency and sputum colour charts in COPD patients: an exploratory mixed-method study [PDF]

open access: yesnpj Primary Care Respiratory Medicine, 2021
Sputum colour may mark bacterial involvement in acute exacerbations of chronic obstructive pulmonary disease (COPD). However, whether colour vision deficiency (CVD) in COPD patients could impact the use of sputum colour charts as part of a guide to ...
Sunita Channa   +5 more
doaj   +2 more sources

Occupational exposure at petrol stations and red- green colour vision deficiency: a case-control study from Sudan [PDF]

open access: yesBMC Public Health
Background Occupational exposure to petroleum-derived organic solvents has been associated with acquired colour vision impairment. Evidence from low- and middle-income settings remains limited.
Ibrahim Abdelrhim Ali   +2 more
doaj   +2 more sources

Prevalence of congenital colour vision deficiency among Black school children in Durban, South Africa [PDF]

open access: yesBMC Research Notes, 2019
Objectives Congenital colour vision deficiency (CCVD) is an x-linked chromosome disorder that results from abnormalities in one or all three-cone type’s photoreceptors.
Khathutshelo Percy Mashige   +1 more
doaj   +2 more sources

The impact of display saturation on visual search performance in congenital colour vision deficiency. [PDF]

open access: yesPLoS ONE, 2023
BackgroundColour-related search tasks are common in many professional fields. The study investigated whether increasing chromatic saturation can enhance the visual performance of individuals with colour vision deficiency (CVD) in colour-related search ...
Amithavikram R Hathibelagal
doaj   +2 more sources

Research on the Accessibility of Different Colour Schemes for Web Resources for People with Colour Blindness [PDF]

open access: yesJournal of Imaging
This study is devoted to the analysis of the perception of colour schemes of web resources by users with different types of colour blindness (colour vision deficiency).
Daiva Sajek   +2 more
doaj   +2 more sources

Colour Vision Deficiency: Is it a Handicap? A Narrative Review of its Impact on Medical & Dental Education and Practice

open access: yesProceedings of Singapore Healthcare, 2014
Colour vision is required in medical and dental practices. This article seeks to present the impact of colour vision deficiency (CVD) on medical, dental education and practices using narrative review of literature.
Shermin Shi Min Goh   +2 more
doaj   +2 more sources

Practice Effects and the Lanthony D15 [PDF]

open access: yesVision
Purpose: Recent studies have shown that subjects with congenital colour vision deficiency (CVD) can pass the saturated Farnsworth D15 (FD15) through practice. The Lanthony D15 (LD15) uses desaturated colours and is a difficult test even for patients with
Joslynn Ho, Jason S. Ng
doaj   +2 more sources

Home - About - Disclaimer - Privacy