Results 21 to 30 of about 22,375 (191)

Color weakness in congenital color perception deficiency of various degrees

Journal of Ophthalmology, 2018
Background: The prevalence of congenital color vision defects (CCVD) is reported to be approximately 8% in males and 0.5% in females, and, therefore, the use of optimal tests capable of diagnosing these defects early and accurately, and with all the ...
A.V. Ponomarchuk, N.I. Khramenko
doaj   +2 more sources

Acquired Color Vision Defects and Hexane Exposure: A Study of San Francisco Bay Area Automotive Mechanics. [PDF]

Am J Epidemiol, 2016
Occupational exposure to solvents, including n-hexane, has been associated with acquired color vision defects. Blue-yellow defects are most common and may be due to neurotoxicity or retinal damage. Acetone may potentiate the neurotoxicity of n-hexane. We
Beckman S, Eisen EA, Bates MN, Liu S, Haegerstrom-Portnoy G, Hammond SK.   +5 more
europepmc   +2 more sources

Color Vision in Schoolchildren with Low Birth Weight and Those Born Full-Term with Appropriate Weight for Gestational Age [PDF]

Vision
Purpose: To evaluate color discrimination in schoolchildren with low birth weight (LBW) and those born full-term and at a weight appropriate for gestational age (AGA).
Paula Yuri Sacai, Maria Cecília Saccomani Lapa, Rosana Fiorini Puccini, Nívea Nunes Ferraz   +3 more
doaj   +2 more sources

Agreement Between the Smartphone Application Farnsworth D-15 Test and the Standard Farnsworth D-15 Test for Color Vision Assessment [PDF]

Clinical Ophthalmology
Kanyarat Thammakumpee,1 Katkanit Thammakumpee,2 Koranat Thammakumpee,3 Soyci Tiantanyatip4 1Department of Ophthalmology, Faculty of Medicine, Burapha University, Chonburi, Thailand; 2Department of Internal Medicine, Faculty of Medicine, Burapha ...
Thammakumpee K, Thammakumpee K, Thammakumpee K, Tiantanyatip S   +3 more
doaj   +2 more sources

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

Advanced 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, Samim Ahmed Al-Dabbagh   +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

Function 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, Ebrahim Jafarzadehpur, Asieh Sadat Sedighi, Ali Mirzajani   +3 more
doaj   +1 more source

Ethambutol optic neuropathy in the extended anti-tubercular therapy regime: A systematic review

Indian Journal of Ophthalmology, 2023
The extended use of ethambutol beyond 2 months for treating tuberculosis has increased risk of optic neuropathy. We performed a systematic review of studies evaluating optic neuropathy in extended ethambutol use since 2010 and compared the outcome with a
Swapnali Sabhapandit, Vishwanath Gella, Anumula Shireesha, Ledo Thankachan, Mohamad Ismail, Raghava Rao, Rupjyoti Talukdar   +6 more
doaj   +1 more source

Color-discrimination threshold determination using pseudoisochromatic test plates

Frontiers 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, Maris eOzolinsh, Maris eOzolinsh, Sergejs Dmitrievich Fomins, Sergejs Dmitrievich Fomins, Ausma eGutmane, Brigita eZutere, Anete ePausus, Varis eKaritans   +8 more
doaj   +1 more source

The multifocal pattern electroretinogram in chloroquine retinopathy [PDF]

, 2004
Purpose: Optimal screening for ocular toxicity caused by chloroquine and hydroxychloroquine is still controversial. With the multifocal pattern electroretinogram (mfPERG), a new electrophysiological technique has recently become available to detect early
Stiefelmeyer, S., Berninger, T., Neubauer, A. S., Arden, G. B., Rudolph, G.   +4 more
core   +1 more source

Saliency Consistency-Based Image Re-Colorization for Color Blindness

IEEE Access, 2020
For patients with color vision defects, owing to the destruction of cone cells and loss of function, some color information is lost, hence changing the originally transmitted information by the image.
Jinjiang Li, Xiaomei Feng, Hui Fan
doaj   +1 more source