Today Is The Day ..............May11

[Chris Ryser]

Today is the Day


Bisphenol A>

Chemical of issue to the optical industries>

Trace amounts found in polycarbonate>

Was added back onto Prop. 65 list May 11, 2015>

Subject to 1 year grace period before enforcement could occur>

No safe harbor published yet>

Thus, as of May 11, 2016, BpA is ripe for enforcement. Compliance for

Compliance for Product Exposure

> Product exposure warning:

> “WARNING: This product contains a chemical known tothe State of California to cause birth defects or otherreproductive harm [or cancer]”

> Can be on product packaging, or point of sale signage.

> Whether work place or product warning:> Must be conspicuous

> Must be proximate


See all of it:
http://www.thevisioncouncil.org/site...e-12172015.pdf

[Chris Ryser]

As stated on an other thread.................the front and backsides are hard coated on optical lenses and only the edges can leach and they can be coated with a product called "Total Seal" a polysiloxane coating, before mounting into frame by wiping it on, and letting it cure. The edges then will be fully protected against leaching.

[Tallboy]

As stated on an other thread.................the front and backsides are hard coated on optical lenses and only the edges can leach and they can be coated with a product called "Total Seal" a polysiloxane coating, before mounting into frame by wiping it on, and letting it cure. The edges then will be fully protected against leaching.

What benefit will your sealant do for the optical who has to mention this prop 65. Are you suggesting that they can be exempt from displaying such warnings because their lenses are coated on all sides? I doubt California would go for that...

[Dustin.B]

Reasons I will not move to California #47; Everything causes cancer, but only in that state.

[Chris Ryser]

What benefit will your sealant do for the optical who has to mention this prop 65. Are you suggesting that they can be exempt from displaying such warnings because their lenses are coated on all sides? I doubt California would go for that..

.

You either seal the edges for a charge or none, and you will have no leaching, or you don't seal them and your customer will think twice or 3 x times before purchasing any more Poly lenses, or not touch them anymore.

Another future goldmine for lawyers.

[Speed]

Reasons I will not move to California #47; Everything causes cancer, but only in that state.

Reason 1566 to avoid using poly.

[Chris Ryser]

What benefit will your sealant do for the optical who has to mention this prop 65. Are you suggesting that they can be exempt from displaying such warnings because their lenses are coated on all sides? I doubt California would go for that...

The California optician has mentioned and warned the client of the dangers, he can also say that however there is a sealer on the market that will prevent the leaching of the product through the edges as just mentioned. California says that they leach and you can get health problem because of it. So you seal it and there is no more leaching.

Can you get drunk from a bottle of wine that still contains the seal and the cork ?

As you are not in California you can pretend that you know nothing about it and continue continuing on as you did before.

[Quince]

So if we all just make sure all the poisons we insist on exposing ourselves and the world (who doesn't know better)to we will all be fine. What about when that lens gets a deep scratch or other damage? Instead of removing the harmful product, let's just put it in a ziplock bag and put it on our faces. What's the harm in mercury if its sealed in a glass tube?

-kk

[rbaker]

Don't' know much about this but my grandkids in Orinda, CA have been seeing black helicopters hovering over the mall all day.

[Craig]

If the edges leech out bad stuff; What about surfacing and edging it? Never mind hand polishing or beveling all day long in a lab.

I spoke with someone who has labs in California as clients for his software; as of today all invoices warn of the dangers of poly.

The folks who worked with me in Omega Dallas 20 years ago must all be dead from doing 10,000 poly per day!

[Chris Ryser]

If the edges leech out bad stuff; What about surfacing and edging it? Never mind hand polishing or beveling all day long in a lab.

I spoke with someone who has labs in California as clients for his software; as of today all invoices warn of the dangers of poly.

The folks who worked with me in Omega Dallas 20 years ago must all be dead from doing 10,000 poly per day!

Craig you are totally right. There is that other side, the manufacturing. However it does not say that it is a killer.


> “WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm [or cancer]”

Craig, you survived cancer and so did I. I can also attest that it is not fun getting it and the tough efforts it takes to survive it.

Should we not find and use preventive measures if they are available ?

[merrymaker]

Don't' know much about this but my grandkids in Orinda, CA have been seeing black helicopters hovering over the mall all day.

bwhahah....

Orinda doesn't have a mall.

(I'm one town over.)

[Chris Ryser]

What benefit will your sealant do for the optical who has to mention this prop 65. Are you suggesting that they can be exempt from displaying such warnings because their lenses are coated on all sides? I doubt California would go for that...

It does not matter if California will go for that, it is for your own peace of mind to give the best protection that is now available and some even better ways might be developed in the near future.

If you ever had an experience like mine laying in a corridor of a hospital emergency ward away from home during a summer holiday, waiting a few hours to get operated in the worst pain ever experienced in a lifetime, and I was tempted to grab the policeman's gun out if its holster, standing next to my bed and shoot myself.

Next day I was told that the 4 hour operation was successful but that I had only 5 to 8 month to live, because the upper colon had perforated and leaked cancerous stuff all over the cavity.

Today 24 years later I am still being medically followed because they never had heard of any any other survivors with the same problem.

I f we can do anything to help prevent anything disturbing your health, or future birth defects it should be done.

[Tallboy]

Chris can I be 100% certain that your sealant protects the consumer? BPA will not transmit through?

[Chris Ryser]

What is

Bisphenol A (BPA)


What is BPA?Bisphenol A, more commonly knownas BPA, is a chemical widely usedto make polycarbonate plasticsand epoxy resins.Where is BPA found?Polycarbonate plastics have manyapplications including use in somefood and drink packaging such aswater and baby bottles, compact discs,impact-resistant safety equipment, andmedical devices including those usedin hospital settings.1 Epoxy resins areused to coat metal products such asfood cans, bottle tops, and water supplypipes. BPA can also be found in certainthermal paper products, includingsome cash register and ATM receipts.Some dental sealants and compositesmay also contribute to BPA exposure.


How does BPA get into the body?


BPA can leach into food from the epoxyresin lining of cans and from consumerproducts such as polycarbonatetableware, food storage containers,water bottles, and baby bottles.Additional traces of BPA can leachout of these products when they areheated at high temperatures. Recentstudies also suggest that the publicmay be exposed to BPA by handlingcash register receipts.2 More researchis needed to determine how much BPAfrom a receipt’s coating enters the bodyand how it gets there. The NationalInstitute of Environmental HealthSciences expects to support moreresearch to determine if BPA inreceipts poses a risk to human health.

Why are people concernedabout BPA?

One reason people may be concernedabout BPA is because human exposureto BPA is widespread. The 2003-2004National Health and NutritionExamination Survey (NHANES),conducted by the Centers for DiseaseControl and Prevention (CDC), founddetectable levels of BPA in 93%of Americans six years and older.Another reason for concern, especiallyfor parents, may be because somelaboratory animal studies report subtledevelopmental effects in fetuses andnewborns exposed to low doses of BPA.


Why did the National ToxicologyProgram (NTP) evaluate BPA?


The NTP Center for the Evaluation ofRisks to Human Reproduction (CERHR)conducted the BPA evaluation. BPA wasselected for evaluation because of thefollowing factors:

• Widespread human exposurefrom use and occurrence inthe environment
• Growing public concern
• Amount of BPA produced
• Extensive database of animalstudies on reproductive anddevelopmental effects.

What did the NTPconclude about BPA?

The NTP has “some concern“ for BPA’seffects on the brain, behavior, andprostate gland in fetuses, infants, andchildren at current exposure levels.The NTP has “minimal concern“ foreffects on the mammary gland andan earlier age for puberty in females,fetuses, infants, and children at currentexposure levels.

The NTP has “negligible concern“ thatexposure of pregnant women to BPAwill result in fetal or neonatal mortality,birth defects, or reduced birth weightand growth in their offspring.

The NTP has “negligible concern“ thatexposure to BPA will cause reproductiveeffects in non-occupationally exposedadults and “minimal concern” forworkers exposed to higher levelsin occupational settings. ................................................

see all of it: =========è
http://www.niehs.nih.gov/health/asse..._a_bpa_508.pdf


FDA, see at: ==========è
http://www.fda.gov/newsevents/public.../ucm064437.htm


























http://www.niehs.nih.gov/health/topics/agents/sya-bpa

[drk]

We're all gonna die!!!!

[Tallboy]

I got diagnosed with malignant bladder cancer when I was 36 (about 1.5 years ago). My wife was adamant that it was caused by exposure to tint pots, bleach and lens dust while working in labs at LC and private firms. Both the urologist surgeon who worked on me and the specialists at Johns Hopkins said that it was absolutely positively not exposure to poly or any other chemical I had been working with, even the old nasty bleach which has since been replaced with Chris Ryser's poly safe tint neutralizer. I'm okay with leading cancer experts giving me the okay to keep working in the environment I'm in.

I trust science much more than I trust California.

[Chris Ryser]

Chris can I be 100% certain that your sealant protects the consumer? BPA will not transmit through?

May 17, 2016

Having done research on the internet since its inception I have found many ideas for products that could be used in the optical trade.

Being borne into the optical and having lived this profession in just about all stages from retail to manufacturing I also learned that this profession is not always just selling new products and features. It is also a profession that should be able to deal with every so often arising problems.

There have always been frame materials that created allergies
on sensitive skins on some people and not others, on both materials as metals or plastics, with the exception of natural ones as turtle shell, or natural horn.

So my goal was to find a material that would protect these few allergic people against unfavorable reactions, and that material would also stick and fuse with all the basic optical eyeglass materials used in the modern world. This was close to 20 years ago.

I came across something the basically new on the web, it called "Polysiloxanes" used in the medical world and the following paragraph made good sense to me.

"With all the different characteristics of polysiloxanes come a variety of applications, both medical and non-medical. Since a lot of favorable characteristics are known and usable, this polymer is a popular candidate for various purposes. The medical applications include prostheses, artificial organs, facial reconstruction, catheters, artificial skin, contact lenses, and drug delivery systems while the non-medical applications include high-performance elastomers, membranes, electrical insulators, water repellants, anti-foaming agents, mold release agents, adhesives and protective coatings, release control agents for agricultural chemicals, and hydraulic, heat-transfer, and dielectric fluids."

excerpt from: ===========>
http://wwwcourses.sens.buffalo.edu/ce435/Polysiloxanes

So we developed a water based solution with a fast air curing system which was the hardest part, for easy use in the optical lab by non scientifically trained people. Just wipe it on and let cure.

I close to 20 years this product has sold as "Total Seal" has prevented or cured many allergic skins from being touched by chemicals, leached on skins, by metal or plastic frame parts, that were allergic to them. So you should be well protected by sealing polycarbonate edges..

These days when you make a search on the web you will find hundreds of different applications from the simplest, to the most complicated applications of the basic product converted for its special use.

[RT]

Bisphenol A is known to the State of California to cause reproductive toxicity, but is not know to cause cancer. http://oehha.ca.gov/proposition-65/c.../bisphenol-bpa

Comments referring to "cancer" in this thread and several others are the result of an incomplete understanding of the situation and/or shameless sensationalism to promote a product. At no point has anybody anywhere other than Optiboard alleged that BpA causes cancer.

Chris, do you have test data that shows BpA "leaching" out of a lens? It seems the only source I can find for the assertion that BpA "leaches" out of polycarbonate lenses is on www.optochemicals.com, and here on Optiboard. Preliminary exposure test results that I have seen show that BpA in a poly lens is undetectable. There's quite a big difference between "undetectable" and "leaching". Some lens manufacturers have publicly stated that if the State of California adopts the proposed Safe Harbor Limit of 3 micrograms per day for dermal exposure, that polycarbonate lenses will be safely below that Safe Harbor Limit.

[Speed]

My urologist told me that bladder cancer was caused by smoking. Said he never knew of anyone with it that did not smoke.

[Chris Ryser]

Chris, do you have test data that shows BpA "leaching" out of a lens? It seems the only source I can find for the assertion that BpA "leaches" out of polycarbonate lenses is on www.optochemicals.com, and here on Optiboard. Preliminary exposure test results that I have seen show that BpA in a poly lens is undetectable. There's quite a big difference between "undetectable" and "leaching". Some lens manufacturers have publicly stated that if the State of California adopts the proposed Safe Harbor Limit of 3 micrograms per day for dermal exposure, that polycarbonate lenses will be safely below that Safe Harbor Limit.

RT, I have never said that BpA is leaching out, and in what quantities, what i meant is that there is a way to stop any leaching if it is actually happening, on the only unprotected area of a Polycarbonate lens, that is not covered by a coating, which are the edges.

If the edges would be sealed by a proper coating, there would be no such thing as leaching, in microscopic or even smaller quantities, or none at all.

[Hayde]

We're all gonna die!!!!

It all makes perfect sense now! The Big E was a part of the great Apollo Conspiracy. What really happened to those poor astronauts because of their polycarbonate helmet visors walking around the Florida soundstage trussed up as the moon?

It's a cover-up, I tell you!

Bisphenol A is known to the State of California to cause reproductive toxicity, but is not know to cause cancer. http://oehha.ca.gov/proposition-65/chemicals/bisphenol-bpa ....It seems the only source I can find for the assertion that BpA "leaches" out of polycarbonate lenses is on www.optochemicals.com, and here on Optiboard. Preliminary exposure test results that I have seen show that BpA in a poly lens is undetectable. There's quite a big difference between "undetectable" and "leaching". Some lens manufacturers have publicly stated that if the State of California adopts the proposed Safe Harbor Limit of 3 micrograms per day for dermal exposure, that polycarbonate lenses will be safely below that Safe Harbor Limit.

Thank you for taking the time to do a little, logically relevent research. I would describe it as professionally responsible.
I think any professional message board would benefit from this kind of self-discipline...especially one which includes health care providers.

[Tallboy]

My urologist told me that bladder cancer was caused by smoking. Said he never knew of anyone with it that did not smoke.

Yea I smoked. Genetics, smoking and long term exposure to certain industrial coating processes is what I was told.

[Chris Ryser]

No health risk for consumers from Bisphenol A exposure - the BfR endorses the conclusion of the new EFSA assessment

BfR communication No. 005/2015, 19 February 2015

In January 2015, the European Food Safety Authority (EFSA) published a new opinion on the assessment of the health risks associated with Bisphenol A (BPA) in foods and from other, non-dietary sources. In this opinion, the EFSA experts conclude that based on the current scientific evidence and given the current levels of consumer exposure, BPA does not pose a health risk for any age group. This also applies to unborn children, infants and young adolescents. New data and more sophisticated methods have led the EFSA experts to significantly reduce the tolerable daily intake (TDI) for BPA - from 50 micrograms per kilogramme of bodyweight per day (µg/kg bw/day) to 4 µg/kg bw/day. In view of this new assessment, the highest estimates of the exposure derived from foods alone or in combination with other sources (diet, house dust, cosmetics and thermal paper) are 3 to 5 times below the new TDI value. Uncertainties regarding possible health effects of BPA on the mammary gland, the reproductive, metabolic and immune systems and in relation to neurobehavioural disorders have been analysed and taken into account in the calculation of the TDI. The TDI must be seen as a temporary value as long as the results of a long-term study on rats, a study which aims to eliminate those uncertainties, are still pending. The BfR welcomes the fact that extensive data from Europe was taken into account in the exposure calculation and, given the uncertainties of the overall BPA data situation, endorses the derivation of the new temporary TDI.

The scientific opinion of the EFSA consists of three documents: an overview (Executive Summary), an exposure assessment (Part I) and a toxicological risk assessment (Part II). Draft versions for Part I (2013) and Part II (2014) were published for public consultation and were discussed with stakeholders on the occasion of an EFSA stakeholder meeting. The information and comments obtained through this process have been taken into consideration in the final version of the opinion and have additionally been published in the form of a technical report along with the answers of the EFSA.

Continue reading at

http://www.bfr.bund.de/cm/349/no-hea...assessment.pdf

[Quince]

"STATE OF CALIFORNIA
ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF ENVIRONMENTAL HEALTH HAZARD ASSESSMENT
SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT OF 1986
CHEMICALS KNOWN TO THE STATE TO CAUSE CANCER OR REPRODUCTIVE TOXICITY
April 22, 2016"


"Bisphenol A (BPA) female 80-05-7 May 11, 2015
Bisphenol A (BPA) Delisted April 19, 2013developmental 80-05-7 April 11, 2013"

http://oehha.ca.gov/media/downloads/...le04222016.pdf



BPA was originally listed under "developmental," meaning birth defects and was then relisted for "female reproductive toxicity." It is on a list that also has cancer causing chemicals so people are grouping them together. From what I can find so far, women are much more likely to have health issues due to exposure. In a previously dominantly male career, it would make sense that only now are we seeing more cases of possible health problems related to poly.

From what I can find, BPA effects estrogen. This can harm the development of male fetuses, male libido and fertility, and cause ovarian harm and sterilization. If you aren't looking to pass on your genes, or concerned about a possibly lesser sex life, you are in the clear.


"Scientists now believe that there are at least two mechanisms by which BPA disrupts normal endocrine function. BPA can act as a weak estrogen, binding to the estrogen receptor. Alternatively, BPA can block the effect of stronger natural estrogens, inhibiting estrogen function. "

http://www.ehhi.org/reports/plastics/bpa_health_effects.shtml