Testing Color Vision in Children

2022 ◽  
pp. 21-31
Author(s):  
Kristen L. Kerber
Keyword(s):  
Color Vision ◽  
Pediatric Population ◽  
Learning Experience ◽  
Color Naming ◽  
Screening Tests ◽  
Career Interests ◽  
Older Children ◽  
Vision Defect ◽  
Color Vision Defects ◽  
Vision Defects

It is important to screen for acquired or hereditary color vision defects as early as possible. Color vision is a critical part of the early learning experience, and children who have color deficiencies may have difficulties compared to their peers if there is color-based schoolwork. It becomes important for career interests/goals for older children as some jobs may require normal color vision. Hereditary red-green deficiencies are X-linked and therefore affect approximately 8% of males and less than 1% of females. Acquired color vision defects and blue-yellow defects are rare in the pediatric population; therefore, these conditions will be discussed minimally in this chapter. Infants are able to discern color by 2-3 months of age, but accurate color naming may not develop until 4-6 years of age. Screening tests are sensitive, fast, and easy to administer. If a deficiency is suspected through screening, further testing must be evaluated in order to determine the type and severity of the color vision defect. Color vision is typically tested starting at age 3 years and up.

scholarly journals The burden of color vision defect in Nepal – an iceberg phenomenon

2019 ◽  
Vol 9 (4) ◽  
pp. 69-71
Author(s):  
Anadi Khatri ◽  
Bal Kumar K.C ◽  
Sudhir Gautam ◽  
Muna Kharel
Keyword(s):  
Color Vision ◽  
Early Stage ◽  
Descriptive Analysis ◽  
School Level ◽  
Color Vision Defect ◽  
Vision Defect ◽  
Color Vision Defects ◽  
Color Vision Test ◽  
Sequential Group ◽  
Vision Defects

Background: Color vision tests are routinely performed and are mandatory in most part of the world. However, in Nepal and many other developing countries, color vision may often be overlooked. We evaluated a possible burden of color vision in a group of patients who were specifically evaluated for a color vision defects. This study evalutes the awareness of color vision defect among the patients evaluated and highlights the importance of the color vision evaluation. Methods: A sequential group of 73 people from August to September 2017 specifically evalu­ated for color vision defect for recruitment of government employment were evaluated. Ishi­harapseudo-isochromatic plates and Farnsworth-Munsell Dichotomous D-15 test were used for screening. Mean and Standard deviation were used for descriptive analysis of the data. Results: Fifty-seven were male and sixteen were female. The mean age was 23 years (SD ± 3.7). On evaluation of the color vision defect, 9 (12.3%) were found to have total color vision defect (achromatopsia), 3 (4%)-red-green defect and 1(1%) with blue red defect. None of the patients had undergone color vision test at eye hospital previously. There were 4 patients who were registered drivers who had color vision defect. Conclusions: Color vision is an important part of the vision. It should not be ignored.All of the patients evaluated were found to be unware of their condition. Early detection of color vision defects in individuals, if possible, at school level can help them to determine their careers and future endeavors at early stage.

scholarly journals Profile of Color Vision Defects in a Tertiary Care Hospital in Western Nepal

2014 ◽  
Vol 3 (1) ◽  
pp. 1-4
Author(s):  
ST Godar ◽  
KR Kaini ◽  
JB Khattri
Keyword(s):  
Color Vision ◽  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Anterior Segment ◽  
Care Hospital ◽  
Cross Sectional ◽  
Color Vision Defect ◽  
Vision Defect ◽  
Color Vision Defects ◽  
Vision Defects

Background: Significant numbers of people suffer from color vision defect but most of the time remains an unnoticed problem. The present work was undertaken to study the profile of color vision defects in Western region of Nepal. Methods: This is a cross-sectional, hospital based study conducted in a tertiary care hospital of Western Nepal from January 2012 to December2012. Total of 971 patients were selected by simple random method. In each patient assessment of visual acuity and the examination of anterior segment and posterior segment was done. Color vision was tested by Ishihara Pseudo isochromatic chart. Results: Out of total 971 patients, 501 were males (51.59%) and 470were females (48.40%). Out of this total, 91 (9.37%) had color vision defects. Among the color vision defects patients,68were males (74.72%)and 23 were females (25.27%). Congenital color vision defect was seen in 10.97% of males and 2.97% of females whereas acquired color vision defect was observed in 2.57% of males and 1.91% of females respectively. Color vision defects were observed more in Chhetri (14.38%), followed by Brahmin (10.16%) and Magar caste (9.89%). Conclusion: The prevalence of color vision defect in Nepal is significant. All people should be screened for color vision defect and advised about it so that they can take special care in daily practice as well as in future life Nepal Journal of Medical Sciences | Volume 03 | Number 01 | January-June 2014 | Page 1-4 DOI: http://dx.doi.org/10.3126/njms.v3i1.10340

scholarly journals Color Vision Defects in School Going Children

2010 ◽  
Vol 50 (180) ◽  
Author(s):  
R K Shrestha ◽  
MR Joshi ◽  
S Shakya ◽  
R Ghising
Keyword(s):  
Color Vision ◽  
Male Students ◽  
Male Population ◽  
Cross Sectional ◽  
Green Color ◽  
Color Vision Defect ◽  
Vision Defect ◽  
Color Vision Defects ◽  
Vision Defects ◽  
Rule Out

Introduction: Color Vision defect can be observed in various diseases of optic nerve and retina and also a significant number of people suffer from the inherited condition of red and green color defect.  Methods: A cross-sectional descritptive study was designed with purposive sampling of students from various schools of Kathmandu Valley. All children were subjected to color vision evaluation using Ishihara Isochromatic color plates along with other examination to rule out any other causes of color deficiency.  Results: A total of 2001 students were examined, 1050 male students and 951 females with mean age of 10.35 (±2.75) and 10.54 (±2.72) respectively. Among the total students examined, 2.1% had some form of color vision defects. Of the male population , 3.9% had color vision defects while none of the female was found with the deficiency.  Conclusions: The prelevance of color vision defect in Nepal is significant and comparable with the prelevance quoted in the studies from different countries. Keywords:color vision; congenital red green color effect; Nepal; prevalence.

Color-Vision Defects in Alcoholism

1971 ◽  
Vol 32 (1) ◽  
pp. 41-44 ◽  
Author(s):  
James W. Smith ◽  
George A. Brinton
Keyword(s):  
Color Vision ◽  
Color Vision Defects ◽  
Vision Defects

Macular Color Vision Defects

1980 ◽  
Vol 20 (1) ◽  
pp. 53-82 ◽  
Author(s):  
JOEL POKORNY ◽  
VIVIANNE C. SMITH ◽  
J. TERRY ERNEST
Keyword(s):  
Color Vision ◽  
Color Vision Defects ◽  
Vision Defects

Red-Green Color Vision, Defects

2018 ◽  
pp. 1499-1501
Author(s):  
Niloofar Yari ◽  
Sumayya J. Almarzouqi ◽  
Michael L. Morgan ◽  
Andrew G. Lee
Keyword(s):  
Color Vision ◽  
Green Color ◽  
Color Vision Defects ◽  
Vision Defects
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