In 2023, a lab put 18 soft contact lenses from the three biggest brands, Acuvue, Alcon, and CooperVision, through PFAS testing. Every single one came back with detectable organic fluorine, the chemical marker for PFAS. The lowest reading was 105 parts per million. The highest was 20,700 ppm. For comparison, the tampons tested in a separate investigation maxed out around 28 ppm. Contact lenses were in a different league entirely.
Before anyone throws out their lenses: high organic fluorine in the material is not the same as a proven health harm to the wearer, and the experts quoted were careful about that distinction. But "you are placing a fluoropolymer directly on the surface of your eye for hours a day" is the kind of sentence that makes scientists want answers nobody currently has. Here is what the testing showed.
You can check your drinking water for PFAS with a free ZIP lookup in seconds, but contact lenses are a contact-with-the-body exposure that almost no one has on their radar.
The testing was commissioned by the environmental wellness community Mamavation in partnership with the news outlet EHN.org, and run at an EPA-certified laboratory. Eighteen sets of soft contact lenses across Acuvue, Alcon, and CooperVision were tested for organic fluorine, the practical marker for PFAS.
The headline numbers:
On the lower end, six products came in under 200 ppm, which the testers described as the best of the bunch:
Notice the same brand, Alcon, appears at both the top and the bottom. This is not a clean "Brand X is bad" story. It tracks with the material itself: soft contact lenses are commonly made with fluoropolymers, a type of PFAS, because that chemistry helps with oxygen permeability and surface properties. The organic fluorine is essentially the lens material doing its job, not a stray contaminant.
This is where accuracy matters, because the testing measured what is in the lens, not what enters your body.
Linda Birnbaum, former director of the National Institute of Environmental Health Sciences, said the results were concerning specifically because of where the lenses sit: "Your eyes are one of the most sensitive parts of your body. Therefore, it's concerning to see the presence of organic fluorine found in all soft contact lens products tested."
Terrence Collins of Carnegie Mellon University made the deeper point about uncertainty: "No one today can tell you that fluoropolymer exposures are safe, because no jurisdiction has been demanding the development and scrutiny of appropriate safety testing." In other words, the absence of evidence of harm is not the same as evidence of safety. The studies needed to answer "does PFAS leach from a worn lens into the eye and the body" largely have not been done.
So the honest framing is this. PFAS as a class have been associated in human studies with effects on the immune system, liver, kidneys, and cholesterol, and with certain cancers and developmental effects, mostly via ingestion and drinking water. Whether a fluoropolymer lens releases enough free PFAS into the tear film and eye tissue to matter is an open and unstudied question. The high ppm number is a real, verified measurement; the leap to "this is harming wearers" is not something the data currently supports or rules out.
Industry groups pushed back along exactly these lines after the report, arguing that fluoropolymers are large, stable molecules unlikely to be bioavailable the way smaller PFAS compounds are. That is a legitimate scientific argument, and it is also unresolved.
Given the uncertainty, the reasonable response is measured, not dramatic:
That last point is the practical one. The most studied, highest-confidence PFAS exposure route is drinking water, and unlike your contact lenses, it is one you can measure and reduce today. See what is in your local supply with the free ZIP lookup, and if your area has detections, a certified PFAS water filter is a concrete step the contact-lens question simply does not offer yet.
### Do contact lenses contain PFAS? Based on the 2023 Mamavation and EHN testing, yes, at least the soft lenses they tested. All 18 soft contact lenses from Acuvue, Alcon, and CooperVision had detectable organic fluorine, the marker for PFAS, ranging from 105 to 20,700 ppm. That is largely because soft lenses are commonly made with fluoropolymers, a type of PFAS, as part of the lens material.
### Which contact lenses had the most PFAS? The three highest readings were all Alcon products: AIR OPTIX COLORS with SmartShield at 20,700 ppm, Total30 for Daily Wear at 20,400 ppm, and Air OPTIX (No HydraGlide) for Astigmatism at 20,000 ppm. Eight of the 18 lenses tested over 4,000 ppm.
### Is it dangerous to wear contact lenses with PFAS? That is unproven in either direction. The testing measured PFAS in the lens material, not how much, if any, transfers into the eye or body. Scientists quoted called the eye-contact exposure concerning and noted the safety studies have not been done. Do not stop wearing prescribed corrective lenses over this; talk to your eye doctor about your options.
### Should I switch to glasses because of PFAS in contacts? That is a personal hedge, not a medical necessity. Glasses and daily-disposable lenses both reduce continuous lens-on-eye time, which is one variable. But the established, well-studied PFAS exposure route is drinking water, not eyewear, so glasses are an optional precaution rather than a fix for a proven problem.
### Why do contact lenses contain fluorine at all? Soft contact lenses are commonly manufactured using fluoropolymers, a category of PFAS. These materials contribute to properties like oxygen permeability and surface behavior. So the organic fluorine the lab detected is essentially the lens material itself, not a contaminant that slipped in.
### Did the manufacturers respond to the PFAS testing? Industry groups argued that fluoropolymers are large, stable molecules and therefore less likely to be biologically available than smaller PFAS compounds, which is a legitimate but unresolved scientific point. The original report did not include detailed responses from the individual brands.
Next step: if the testing makes you want lower-fluorine lenses, bring it to your next eye exam and ask your optometrist about daily disposables and the specific products that tested under 200 ppm. Do not change a corrective prescription on your own based on a single test.