Welder Red Seal · Question
During TIG welding, a welder accidentally strikes an arc briefly without their helmet lowered, resulting in a flash. The welder experiences a sensation of sand or grit in their eyes several hours later. What is the most likely cause of these symptoms?
The symptoms of grit or sand in the eyes, hours after a brief arc flash, are classic signs of photokeratitis, commonly known as 'arc eye' or 'welder's flash'. T
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Question: During TIG welding, a welder accidentally strikes an arc briefly without their helmet lowered, resulting in a flash. The welder experiences a sensation of sand or grit in their eyes several hours later. What is the most likely cause of these symptoms?
Answer options:
- Conjunctivitis due to contaminated hands. ✅ Photokeratitis (arc eye) from UV radiation exposure.
- Corneal abrasion from a foreign body entering the eye.
- Chemical conjunctivitis from welding fumes.
Correct answer: Photokeratitis (arc eye) from UV radiation exposure.
Explanation: The symptoms of grit or sand in the eyes, hours after a brief arc flash, are classic signs of photokeratitis, commonly known as 'arc eye' or 'welder's flash'. This condition is caused by exposure to intense ultraviolet (UV) radiation from the welding arc, which damages the cornea. The other options are less likely given the specific scenario of an arc flash.
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