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

2021 ◽  
Vol 15 (3) ◽  
pp. 179-184
Author(s):  
Asieh Sadat Sedighi ◽  
◽  
Ali Mirzajani ◽  
Ebrahim Jafarzadehpur ◽  
Jamileh Abolghasemi ◽  
...  
Keyword(s):  
Color Vision ◽  
Vision Loss ◽  
Study Groups ◽  
Control Group ◽  
Color Test ◽  
Cross Sectional ◽  
Color Vision Defects ◽  
Gas Station ◽  
Vision Defects ◽  
Color Vision Loss

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. The participants were divided into two 40-people groups of exposure and non-exposure (the members of the fuel sales department). The participants had better vision than 8/10 and no underlying problems or eye disease. Besides, examination, including color vision was performed for all subjects. Color vision was assessed using the D15 test under high to medium light conditions. Also, the color vision test was performed monocularly. Then, the obtained data were analyzed using SPSS V. 22. Results: The two study groups significantly differed in terms of color vision impairment index (P <0.001). Also, more color vision defects were seen in the group exposed to gasoline. The color confusion index (as the indicator of color vision defects) were 1.485 and 1.129 in exposure and non-exposure to gasoline groups, respectively. Thus, color vision defects were significantly higher in the exposure to gasoline group, compared with the control group. Conclusion: The results of this study showed a difference in color vision index between the two groups. Therefore, long-term exposure to organic solvents, such as gasoline in fuel stations may cause color vision loss.

scholarly journals Color Vision Defects among Textile Mill Workers in Lahore

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Qazi Muhammad Omair ◽  
Hifza Imtiaz ◽  
Maryam Iqbal
Keyword(s):  
Color Vision ◽  
Textile Industry ◽  
Anterior Segment ◽  
Total Sample ◽  
Cross Sectional Study ◽  
Textile Mill ◽  
Cross Sectional ◽  
Color Vision Deficiency ◽  
Color Vision Defects ◽  
Vision Defects

Purpose:  To find out the color vision defects among textile mill workers in Lahore. Study Design:  Descriptive cross sectional study. Place and Duration of Study:  University of Lahore from June 2019 to December 2019. Methods:  Study was done at different textile mills in Lahore, Pakistan. Self-designed proforma was used to record data including age, gender, occupation, any medication or surgery. The workers with best corrected visual acuity of 6/6 and refractive error less than 3.00 D of sphere or astigmatism less than 1 D of cylinder with no history of ocular surgeries were included in the study. Color vision was assessed using Ishihara Isochromatic color plates. Examination of the anterior segment and posterior segment was done by using slit lamp Biomicroscopy and 90 D of condensing lens.Data was entered and analyzed using the SPSS version 22. Results:  During this study 1,250 textile mill workers fulfilled the inclusion criteria. Six hundred fifty were males and 600 were females. Only 10 workers were suffering from color vision deficiency, which was 0.8% of the total sample size. All of the color vision deficiency patients were male of different age group. Conclusion:  It has been concluded that although textile industry is based on colors, there is no proper color vision examination in our textile sector. Colour vision deficiency awareness should be increased so that everyone in the community is well aware of it. The test of color vision must be made compulsory in pre-employment examination at public and private sector at every Level.

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

scholarly journals Assessing the Severity of Color Vision Loss with Implications for Aviation and Other Occupational Environments

2012 ◽  
Vol 83 (1) ◽  
pp. 19-29 ◽  
Author(s):  
Marisa Rodriguez-Carmona ◽  
Matilda O’Neill-Biba ◽  
John L. Barbur
Keyword(s):  
Color Vision ◽  
Vision Loss ◽  
Color Vision Loss

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

scholarly journals Differences in Trunk Kinematic between Frail and Nonfrail Elderly Persons during Turn Transition Based on a Smartphone Inertial Sensor

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Alejandro Galán-Mercant ◽  
Antonio I. Cuesta-Vargas
Keyword(s):  
Frail Elderly ◽  
Inertial Sensor ◽  
Angular Displacement ◽  
Population Group ◽  
Study Groups ◽  
Cross Sectional Study ◽  
Control Group ◽  
Elderly Persons ◽  
Cross Sectional ◽  
Physically Active

Objective. Firstly, to, through instrumentation with theiPhone4smartphone, measure and describe variability of tridimensional acceleration, angular velocity, and displacement of the trunk in the turn transition during the ten-meter Extended Timed-Get-up-and-Go test in two groups of frail and physically active elderly persons. Secondly, to analyse the differences and performance of the variance between the study groups during turn transition (frail and healthy).Design. This is a cross-sectional study of 30 subjects over 65 years, 14 frail subjects, and 16 healthy subjects.Results. Significant differences were found between the groups of elderly persons in the accelerometry (P<0.01) and angular displacement variables (P<0.05), obtained in the kinematic readings of the trunk during the turning transitions. The results obtained in this study show a series of deficits in the frail elderly population group.Conclusions. The inertial sensor found in theiPhone4is able to study and analyse the kinematics of the turning transitions in frail and physically active elderly persons. The accelerometry values for the frail elderly are lower than the physically active elderly, whilst variability in the readings for the frail elderly is also lower than the control group.

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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