Expanding on the below with this analogy: I can say I walk across the street every day and am very careful and yet every year people are hit by cars and killed, even though It may never happen to me. Using the it “has never happen to me” analogy is not a strong argument. I recall similar logic was used with asbestos, cigarettes, PCB’s and now talc. Chronic exposure should not be discounted even though current knowledge may not have an issue with it or by a single case study. I have seen a contact that was deformed from a solvent splash and yes it did washed out from the use of an eyewash station. I am not willing to take the chance that the next time the contact will flush out without damaging the eye. Just another point I would not trust students to wash their hands before they stick their finger in their eye out of habit since this is usually their first interaction with hazardous chemicals and may not have good safety habits. I still have people that whip their face with gloved hands, because they forgot. I would rather have someone not wear contacts and leave after a 40 year career with the same undamaged eyes they started with. I also have no idea how every chemical interacts with contacts or any newly developed one will. We have more information on glove permeation than contacts and I would say most here would say we should have more. People can find it to be over-kill but I believe ANSI rated eyeglass should be worn under googles. The wavier I suggest is only to let the student understand the possible hazards and why it is recommended they do not wear them, as a safety tool not as a legal document. We talk about educating students in safety and yet we seem to recoil from opportunities to do so. Again this is my personal belief and not in any way a regulatory requirement. I have seen far too many people hurt when a company did the minimum required by the law. In no way would I suggest it is illegal to wear contacts in a lab. Am just suggesting that it would be a good place to discuss safety with a student, many of who find safety as burdensome and something for others. I hope am not running down the rabbit hole on this, if I am I apologize.

 

Jeff

 

I have so far resisted weighing in on this thread (aren’t you proud of me?) but it’s time.

 

I’ve worn contact lenses since I was 13 years old, throughout a chemistry degree, work in industry, and over 20 years as a health and safety professional in academia.  I have NEVER had an eye injury or exposure that was in any way caused by contact lens wear.  EVER.  I’m meticulous about wearing safety glasses (or goggles, when necessary).

 

Contact lenses do not absorb chemicals from the air, do not hold chemicals against the eye, do not increase the risk of eye injury, should someone get a splash to the eye.  Putting a dot on goggles or safety glasses to denote a contact lens wearer – what does that accomplish?  If someone gets a splash to the eye, they’re going to activate the eyewash fountain and I’m here to tell you, if the eye is open, that contact lens will be washed out.  Trust me on this one.

 

It’s counter-intuitive but prohibitions against contact lenses are not necessary, based on guidance from NIOSH, ACS, and the American Ophthalmic Association.

 

How are the hazards in lab different to a contact lens wearer than the hazards to anyone else in the lab?  Why is a waiver necessary?  And your undergraduates are wearing contact lenses in lab, whether you know it or not.

 

 

Debbie M. Decker, CCHO, ACS Fellow

Immediate Past Chair, Division of Chemical Health and Safety

University of California, Davis

(530)754-7964

(530)304-6728

dmdecker**At_Symbol_Here**ucdavis.edu

 

Birkett's hypothesis: "Any chemical reaction

that proceeds smoothly under normal conditions,

can proceed violently in the presence of an idiot."

 

 

I would just say one thing, as this organization pushes for safety to be part of the training of future chemistry graduates, one should be careful by just following OSHA guidelines. Even though OSHA may allow it, does not mean it is the prudent thing to do from the long term employee exposure they could have in the laboratory. If I dip my had in something once, is it a real issue, but if I do it day in and day out, what becomes the chronic effects? I for one would never allow contacts to be worn in an undergraduate laboratory. I would also mandate chemical splash googles even if they need to be supplied as part of the lab fees.  The students experience with safety is very limited and in most cases they feel they are bullet proof. Even though the student may not feel they are in danger with what they are doing, it could be someone several feet away that causes the accident that can harm them. I understand students and educators may feel it is ok at an undergraduate level due to the minimal hazards involved but if you want to build a long term safety mindset, at a minimum a waiver should be given to the student(s) to understand the hazards of contacts in the lab. I would worry that the lessons learned in the undergraduate lab carries over to future lab work without understanding the hazards especially with so many chemicals not covered by OSHA.  I do understand for every rule someone will have an exception.

 

Jeff

 

 

Hello,

Our chemistry lab currently does not allow anyone to wear contact lenses in the labs.  I’d like to propose that we allow contacts under safety glasses, goggles or face shields.  We do use methylene chloride, many different corrosive chemicals and potent compounds (mostly in chemical fume hoods but sometimes on the open bench top if dilute or in very small quantities).  The dilemma I’m facing is that OSHA states in 1910.1052 for Methylene Chloride that contact lenses should not be worn when working with this chemical.  I take this a recommendation not a hard rule.  Some of my safety colleagues interpret “should not” to mean that contacts can be worn as long as I can prove that a hazard does not exist (which I don’t think I can do but I feel comfortable with the risk level, citing NIOSH recommendations and scientific studies but not all studies are well enough designed to prove there is no hazard). 

 

My hazard evaluation would include listing the chemicals that are more of a hazard and training the chemists accordingly and letting the chemists decide if they want to take the risk or decide not to wear contacts and order the prescription safety glasses that the company will buy.  Some safety people want me to limit contact lens use only for chemical use that will pose no hazards.  However, in a very large lab with hundreds of chemicals that are constantly changing this would be more work than I feel value added and would confuse the chemists leading to non-compliance. 

 

I would like your thoughts,

Mary

 

 

Mary Biersack

Lab Safety and Chemical Hygiene Specialist

West Pharmaceutical Services, Inc.

P: +1 610-594-3278

530 Herman O. West Drive | Exton, PA 19341 | United States

mary.biersack**At_Symbol_Here**westpharma.com

 

 

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