Is there any type of precaution to use when tinting lenses with this tint?
Many thanks,
Golfnorth
Is there any type of precaution to use when tinting lenses with this tint?
Many thanks,
Golfnorth
just another tint with a fancy name, ............................
Originally Posted by Golfnorth
Nothing special, just another tint with a fancy name,
BPI-37616
BPI FL 41 THERAPEUTIC TINT
So the fact that one of the ingredients is linked to tumor formation doesn't concern you Chris?
http://www.callbpi.com/MSDS2015/1907Alllqdtints.pdf
Regards,
Golfnorth
that one of the ingredients is linked to tumor formation doesn't concern you Chris? .
A dye will tint a lens a certain color on CR 39, and even shift color absorption on other lens materials.
If you want to treat a medical condition with the absorption (non transmittance) of certain colors by the lenses, you better get instructions from the doctor which wavelength (color) he does not want to reach the patients retina, and then find a dye that will do the trick for the proper lens material.
A non tinted lens will simply transmit all colors like wearing no glasses. Tinted lenses will absorb all colors in a uniform black color, or by using different colors will absorb only certain wavelengths.
You can mix any lens tint color from the basic, blue / yellow and red dyes.
See chart from Published in Ophthalmology Times, Designed by Chris Ryser, at : ==========>
http://optochemicals.com/tinting_colorguide.htm
I fail to see how the above answers my question.
I will try it again.
Does the fact that one of the ingredients of the FL-41 dye is linked to tumor formation concern you or not Chris?
YES or NO?
Regards,
Golfnorth
Question is not clear enough................................
Question is not clear enough................................
Tumor formation on the ones that uses the dyes to tint, or the one that wears the glasses with tinted lenses ?
There's this:
www.callbpi.com/pdf_file/mol_catl.pdf
Just don't ingest the stuff in large quantities and you should be OK.
Tumor formation on someone who is tinting the lens for the end user.
If you suffer from PTSD (Post Tinting Stress Disorder) you might want to have the new guy/gal do all the tinting. Much ado about nothing.
It is not the dye that is the largest health risk ........................
We are finally getting to the point on this thread...............................
It is not the dye that is the largest health risk, it is the following you might just about inhale every day you heat the dyepot. Liquid Dyes are just water based chemicals and contain no solvents and are a mix of different colors in water.
The nastiest product that can very easily attack your health, in your dyepot is your standard lens dye Neutralizer.
MSDS (Material Safety Data Sheets) that are available in the optical market for these products can vary totally from brand to brand, even that all these products are ETHER-GLYCOL based. Some manufacturers claim that they are environment friendly and bi-degradable. Some just mark that the products are ETHER-GLYCOL based and no further health information is available.
Actually ETHER-GLYCOL, the normally used "Lens Dye Neutralizer", when hot, emits fumes that are very toxic and highly harmful to the human liver and kidneys. Optical stores are using it in their lab, Optometrists use it in their offices and are not aware that they put themselves and their employees health at risk, by not knowing that they should have proper outside ventilation systems, above their conventional tinting units. Information on this chemicals product can be found on the internet or any chemical information site.
That is some years back that I developed a water based Neutralizer that works as well or better, and contains no solvents, and produces no toxic fumes and or health risks if you do not drink it.
My best market is in China because we can ship it in concentrates and they add their own water.
This seems true for just about everything we work with. It's all hazardous with the right amount of exposure.
Have I told you today how much I hate poly?
I would also recommend against ingesting the stuff in moderate quantities. Just to be safe.
I'm Andrew Hamm and I approve this message.
I keep this dye pot capped when not in use and live on the wildside when I heat it up. What do I know though, its a nice tint.
This seems true for just about everything we work with...............................
Wrong all the way...........................
Today, any exposure to hazardous chemical fumes in a commercial venture that can hurt the worker/employee is punishable by federal law in the USA.
A very simple solution is to use a ventilation hood over the tinting unit and vent it outside.
Stand close to the tinting unit. This tint gets dark in a hurry.
And be ready with your refund check. The overwhelming majority of patients who are told they "need" this "magic" tint, immediately hate it. It's not the late 80's anymore, we're not all working on archaic CRT monitors, and poorly ballasted, flickering 1980's fluorescent tube lights with that sickening blue-green color cast.
Ditch the silly tint entirely. Get a GOOD quality AR, and learn how to adjust your own monitor/screen setting to reduce a little more blue if you must. :)
Ditch the silly tint entirely. Get a GOOD quality AR ................................
Good AR or bad AR (Anti Reflex) will transmit a few percentages more light than uncoated lenses.
Therefore it will not protect (absorb) against a unwanted
wavelength, on the contrary it will transmit it.
The right Lens tint will absorb (eliminate) those unwanted
wavelengths.
But it tastes so good! It's an expensive habit, but I just can't resist chugging two or three containers a day.
Best NOT to eliminate random wavelengths for best vision. Particularly when doctors are not doing proper color/filter testing prior to prescribing. Doubly so, as way back when this tint was developed, Bush the 1st was still in office, and CRT monitors were all the rage. A high quality A/R lens will ALWAYS outperform a tint for clarity of vision. And without full and proper testing, and further, proper prescribing (which simply isn't done with FL-41 in America), it's clinical value remains dubious.
But hey, the tint guys make a killing!
But hey, the tint guys make a killing! ..................................
Only if the right people use the dyes plentiful, you can make a killing, which is not the case these days.
Thanks to the high ranking of my website and the plenty of people go on it, I have managed to introduce optical dyes also into industrial, non optical fields, as professional photo filters
and space instrumentation and so forth.
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