| A Review of Color Deficiency Among the Industrial Workers. |
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Ji Han Kim, Gi Yong Jung, Joon Sang Park, Han Ho Shin |
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Department of Ophthalmology, School of Medicine, Soon Chun Hyung College, Korea. |
| 산업체 근로자의 색각이상에 대한 검토 |
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김지한(Ji Han Kim),정기용(Gi Yong Jung),박준상(Joon Sang Park),신환호(Han Ho Shin) |
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| Abstract |
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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%. |
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