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Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources.
A person with photic retinopathy may notice an impairment in their vision, for example a spot that does not go away after a reasonable recovery time, or blurring. They may also have eye pain or headaches. Vision impairment is usually in both eyes, but can be in just one. Impairment of a person with 20/20 vision usually ends up being about 20/40 ...
A submerged arc welder used for training Close-up view of the control panel A schematic of submerged arc welding Pieces of slag from submerged arc welding exhibiting glassy surface due to silica (SiO 2). Submerged arc welding (SAW) is a common arc welding process. The first SAW patent was taken out in 1935.
National Guard soldiers’ mission to help New York City’s overburdened migrant shelters will be “completed” next week, The Post has learned. The deployment of New York Army National Guard ...
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Flash burn is any burn injury caused by intense flashes of light, high voltage electric current, [1] or strong thermal radiation. [2] These may originate from, for example, a sufficiently large BLEVE, a thermobaric weapon explosion or a nuclear blast of sufficient magnitude. Damage to the eye(s) caused by ultraviolet rays is known as ...
BRUSSELS (Reuters) -The United States doubled down on Friday on calls for a ceasefire in Gaza and the release of hostages following the death of Hamas' leader Yahya Sinwar, even as Israel and its ...
The Carolina Panthers host the Kansas City Chiefs in Week 12 on Sunday. Here's the latest news on a potential boost to the backfield.