Help! I would need a special type of welding glasses

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I would need welding glasses(between a  6-8 factor) which i would be able to use as really dark sunglasses to walk around with and which won'nt feel unconforatbleThe thing is,because homatropine eye drops use for therapeutical reasons(to relieve a spasm of accomodation) i would probably be walking around with fully dilated pupils (6 mm) for like..2-3 weeks,(not being able to constrict at all..),so i would still like to be able to go out during that time and pretty much live my normal life.. but the bright sunlight and daylight in general might be particulary harmfull.. even the darkest sunglasses won't even be near dark enough..(trust me i used homatropine before)can anybody help me with this,suggest any type welding glasses which should do the trick,i have a pair at home with replacable spectacles but these are pretty heavy and really uncomforatble to wear(i also look pretty stupid with them on)thanks in advance
Reply:I would imagine that you need something that fully wraps the eyes - leaking light from the sides would be a problem?  Do you really have any choice apart from something like OA goggles?If you can tolerate leakage you might consider something like this:http://store.cyberweld.com/misaglsh5lew.htmlThey are a #5 lense, can't imagine trying to walk around with anything darker.Hobart LX235Victor 250 Oxy-Acetylene Rig (welding and cutting)Bobcat 773F-350, 1999, 4x4, 16' 10K# trailerOutdoor Wood Burner - 10 cords/year
Reply:I don't know what you mean by "(between a 6-8 factor)", but gas welding lenses are typically shade number 5, and that is too dark.You can get safety glasses meant for grinding (which look a lot like gas welding glasses) that come in a shade #3 though.Your best bet, is to go to a outdoor outfitter who may have glasses designed to prevent high altitude snow blindness.  These have good side coverage, and are quite a bit darker than ordinary sunglasses, are around shade #3, and aren't as goofy looking, because they don't need to protect from flying sparks and debris.  Then you could get a cheap pair of sunglasses for bright indoor use (assuming you don't wear glasses all the time).  If you need something to fit over everyday glasses, its more difficult to find stuff.
Reply:http://www.beatdropscloset.com/Alumi...p/gercygog.htmPair of these!!! Get number 5-6 shade glass at the LWS. If your pupils are that open, you'll probably see better with the darker shade than one normally would.   Your LWS or auto supply place will have lots of Oakley-looking wrap around's that will look a bit less "out there" then the above. Have some fun and get a white cane too. Just to see how the world interacts with you.200amp Air Liquide MIG, Hypertherm Plasma, Harris torches, Optrel helmet, Makita angle grinders, Pre-China Delta chop saw and belt sander, Miller leathers, shop made jigs etc, North- welders backpack.
Reply:Guys i have quiete some experience with homatropine (i already used it for like a couple of days to relieve the pain and eye fatigue and when undergoing an eye exam)At least an 8,but preferably a 9 would be needed for sunny days,especially during summertime,I HAVE already tried these out..(they're just too uncomfortable to be walking around a lot with|)..So trust me i know,it's totally different when your pupils are maximally dilated...a 5 is then just incredibly light,simply impossible to compare when looking through it with normal eyesA 6 i would use at home or with really cloudy weather and 7-8 are for in between..And yes i would need something that fully wraps the eyes,just like many casual sun glasses
Reply:Wow! That sucks! I couldn't say where, if, you could get shade 8-9 glasses. All I can think of is getting a couple shade 9 lens( square helmet ones) and seeing( no pun intended )if a local eye glass place could cut and grind them down to replace the lenses in, like Rlitmen suggested, those mountaineering glasses with the leather sides. Or you could try to do it yourself. I'd think there would be something available in the medical supply field, but like a lot of "medical" stuff it's priced at a 1000% mark up. Your got a bit of a tough one there my man. Good luck with it though.200amp Air Liquide MIG, Hypertherm Plasma, Harris torches, Optrel helmet, Makita angle grinders, Pre-China Delta chop saw and belt sander, Miller leathers, shop made jigs etc, North- welders backpack.
Reply:You've got to have your numbers totally messed up.The darkest mountaineering sunglasses are around shade 3.5I wear shade 5 goggles for torch work, and when I walk around with them outside on a sunny day, its not uncomfortably dim, but it is dark enough to lose detail in shadows.With a shade 9 lens, and fully dilated pupils, you would barely be able to navigate a room indoors, and mostly by looking at the light sources (by shade 10 you could stare at a lightbulb and only see the filament).  Maybe you should turn it up to 11.  With a shade 11 lens, I can comfortably stare at the sun (the guides say a 12 is ideal, but I find it uncomfortably dim).Shade numbers are a logarithmic scale.Anyway, yes, I'm familiar with those drops and totally dilated pupils.  The last time I had to deal with that, I wore my prescription sunglasses indoors (they're not particularly dark, maybe around shade 2.2 or so), and still found any indoor light sources to be uncomfortable.  Outside, I had a boxy pair of shades on top of that.The problem was, that the source of my discomfort from the light wasn't directly caused by the light intensity, but rather by the annoying halos.  As the pupil opening gets larger, the perceived depth of focal field shortens.  Fully open, your eyes constantly strain to focus on everything, and everything in your peripheral vision is out of focus.  Light sources especially, blur out into annoying halos.  Dimming them out to oblivion will reduce the halos, but will also just increase eye strain (and won't solve the depth of field issue).My issue is exacerbated by the corneal scar I have on the periphery of one pupil, which only enters my field of view as my pupils dilate.This page:http://www.causeof.org/sensitivity.htmTalks about light sensitivity, and the section on cataracts gets right to my point:"The disrupted image causes discomfort which is perceived as pain. It is not fully understood why this condition results in discomfort." BTW, I need to ask, what color are your eyes.  Blue eyed people are more sensitive to light (I have brown eyes), and that can make a difference of around 1 shade number.Color blind people can also have an increased light sensitivity as well, as can people who've had refractive surgery to improve their visionThat same web source also said:“Occasionally, a patient will complain of light sensitivity, for which no logical explanation can be found. Most of these individuals tend to be fair skinned, with blue eyes. The treatment is the judicious use of tinted glasses to relieve their symptoms.”Anyway, maybe you want to think in terms of layers (like dressing for the winter).  Although shade numbers aren't additive (because of the logarithmic scale), if a shade 5 lens is too bright for you outdoors, then maybe wear a pair of sunglasses underneath (which you can retain indoors).  Blue blockers do a good job I get my shade 5 goggles at my LWS.  I find the type that takes the rectangular lenses uncomfortable (especially with how they restrict my peripheral vision, but also how they rub my nose and cheeks), so I get a style of goggle that looks more like a ski mask (curves around my face, with sealed edges).These type of goggles aren't available in shades higher than 5 though.Shade 6, 7, and 8 rectangular plates are frequently special order items too.  There's not much call for them.
Reply:Originally Posted by rlitmanYou've got to have your numbers totally messed up.The darkest mountaineering sunglasses are around shade 3.5I wear shade 5 goggles for torch work, and when I walk around with them outside on a sunny day, its not uncomfortably dim, but it is dark enough to lose detail in shadows.With a shade 9 lens, and fully dilated pupils, you would barely be able to navigate a room indoors, and mostly by looking at the light sources (by shade 10 you could stare at a lightbulb and only see the filament).  .
Reply:These goggles can take two sets of lenses, so you could use a #5 on the inside and add a #4 to the outer frame, giving a solution for home and outdoor. In Europe the 50 mm lenses are available from #4 to #14, with the exception of #8 (for whatever reason).Shade 4 to 7 is also available in a shatterproof version, would be nice, at least for the inner pair of lenses.I think similar items should be available in the States as well. They may not be very common (neither are they over here), but you should be able to order them.Approx. prices in Germany:Goggles w/o lenses: Euro 9.00Standard lenses: Euro 0.50 - 0.60 eachShatterproof lenses: Euro 2.30 - 2.80 eachIt is possible to wear them over corrective glasses quite comfortably.Last edited by chevyman_de; 06-10-2010 at 08:31 AM.