[AZ-Observing] Re: Welding
- From: Dan Heim <dan@xxxxxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Wed, 30 Mar 2011 09:39:30 -0700
Well I just had cataract surgery last year. Never used an arc welder,
but in high school I played around with carbon arcs a lot, just because
they were a cool thing to experiment with, not to mention easy to do if
you just pulled the carbon rods out of some D-cell batteries. I never
wore any eye protection (ahhh ... the follies of adolescence). Cause and
affect? Can't say for sure, but no one else in my family has had any
problems with cataracts. JD is right about the UV emission of carbon
arcs, and an arc welder is WAY brighter than my "toy" arc. So most
definitely seek some eye protection that is rated for arc welding.
Dan
On 3/30/2011 8:39 AM, J. D MADDY wrote:
> My wife, Karen, has been in the optical business 30+ years. She said she
> has encountered many cases of cataracts that were potentially caused by arc
> welding. She would fit the welder with special UV coated lenses in
> addition to their welding lenses. She could not remember of anyone doing
> gas welding and complaining of the same problems.
>
> There are
> cases of what's called "glass blowers" and foundry workers eyes. Whether
> it's from the radiation of the fire or just the extreme heat is not
> clear. Fire from gas welding mostly emits in the IR and Na spectrum. Arc is
> mostly in the UV.
>
> Check
> with your local optician and see if they have a catalog of safety eye
> wear. There are special lenses that can be ordered that protect your
> eyes a little better along with the welding glasses.
>
> Go to
> http://www.torchbrazing.com/torch-brazing/eye-protection-while-torch-brazing.htm
> for specifications on what lens to use when.
>
> JD
>
>
>> Date: Tue, 29 Mar 2011 19:17:37 -0700
>> From: stanlep@xxxxxxxxxxxxx
>> To: az-observing@xxxxxxxxxxxxx
>> Subject: [AZ-Observing] Welding
>>
>> This is astronomy related because my welding project is for astronomy. I
>> have a gas welder and 25 years ago I did a lot of welding. I now have
>> another astronomy project in mind that would require a lot of welding.
>> However, because I am 25 years older now I am concerned that it might
>> accelerate the formation of cataracts. Does anyone know if gas (not
>> electric) welding can accelerate the formation of cataracts if one is
>> using the standard goggles (I think it uses a #4 filter) for gas welding?
>> Stan
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