Chronic phototoxic maculopathy caused by welding arc in occupational welders
| Autor: | Xiao-ran Yang, Jie-Hua Yang, Xiaohu Ding, Jie Li, Xue-fen Liang, Dong-ping Shao |
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| Rok vydání: | 2011 |
| Předmět: |
Adult
Male medicine.medical_specialty genetic structures Visual Acuity Fundus (eye) Retina Red reflex Retinal Diseases Ophthalmology Occupational Exposure Photography Medicine Humans Welding Fluorescein Angiography Radiation Injuries Amsler grid Retinal pigment epithelium medicine.diagnostic_test business.industry Fundus photography General Medicine medicine.disease Fluorescein angiography eye diseases Occupational Diseases Macular Lesion medicine.anatomical_structure Cross-Sectional Studies Chronic Disease Maculopathy Visual Field Tests sense organs Visual Fields business Tomography Optical Coherence |
| Zdroj: | Canadian journal of ophthalmology. Journal canadien d'ophtalmologie. 47(1) |
| ISSN: | 1715-3360 |
| Popis: | Objective To investigate whether occupationally-related phototoxicity can occur from welding. Design Cross-sectional study. Participants Forty welders from manufacturing enterprise and 40 age-matched nonwelder controls. Methods Participants underwent thorough ophthalmologic examination including fundus photography, automatic perimeter examination, and high definition optical coherence tomography (OCT) scan. The clinical history of all subjects was screened carefully before the study. Results There was no significant difference for best corrected distance visual acuity when comparing welders with nonwelders. Anterior segment, red reflex, Amsler grid test, and perimetric examinations were unremarkable. Fundus photographs revealed a small, round, or oval, dark-yellow macular lesion with an obscure boundary in 19 welder eyes (23.8%). OCT revealed an interruption or defect in the inner segment/outer segment (IS/OS) layer and the inner portion retinal pigment epithelium (RPE) layer in varying degrees in 30 welder eyes (38.0%), revealing a higher prevalence of maculopathy. All control examinations were unremarkable. We have also discovered that OCT is more sensitive than fundus photography in identifying macular lesions. Conclusions Occupational welders exposed to a welding arc environment have a higher risk of phototoxic maculopathy than nonwelders, as diagnosed most effectively using OCT. |
| Databáze: | OpenAIRE |
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