A Review of Color Deficiency Among the Industrial Workers.
- Author:
Ji Han KIM
1
;
Gi Yong JUNG
;
Joon Sang PARK
;
Han Ho SHIN
Author Information
1. Department of Ophthalmology, School of Medicine, Soon Chun Hyung College, Korea.
- Publication Type:Original Article
- MeSH:
Color Vision;
Gyeongsangbuk-do;
Physical Examination;
Retinal Diseases;
Visual Acuity
- From:Journal of the Korean Ophthalmological Society
1987;28(1):131-135
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The authors surveyed on 154 color deficient workers among 6,023 industrial workers that had undergone a physical examination at Soon Chun Hyang Gumi Hospital but had good visual acuity and no retinal disease. They were examined with 3 kinds of test including AO pseudoisochromatic plate, Ishihara's plate and Han's color vision test. So, results were obtained as follow; 1. AO pseudoisochromatic plate was used only as distinguishable method of existence of color defect. 2. With the Ishihara plate, frequencies as to types of defect were protanopia 19(12.3%), deuteranopia 71(46.1%), protanomaly and deuteranomaly 15(9.7%), and unclassified 48(31.2%). The most frequent type of color defect was deuteranopia. 3. With the Hahn's color vision test, frequencies as to types of defect were protan 33(21.4%), deutan 72(46.7%), and unclassified 48(31.2%). Also in this test, deutan was the most frequent type. 4. Extent of color defect by the Hahn's test was mild(Grade I) 38.3%, medium(Grade II) 23.4%, and strong(Grade III) 38.3%.
