There's only a single ingredient, these eyedrops are 100% pure PFAS

And people put asbestos on their christmas trees back in the day - I don't think "obvious harm" is a high enough standard.

I think obvious harm at 1 trillion parts per trillion is a pretty good standard to meet if you want to claim harm at 1 part per trillion.

It's most definitely going to accumulate inside the body, although slowly.

Yes, but too slowly to matter. Average person consumes 1.5 liters per day of water, so if you live to 100 that's 55000 liters. At 1 ppt that's 1 ng / liter, or 55 ug over a lifetime. That's multiple orders of magnitude less than one drop of the stuff to your eye.

We will know after the drops have been out for over a decade, and actual real-world safety data studies get published.

Meanwhile, Restasis (cyclosporine A) (or a generic) works well, and doesn't have to be applied all day long, just two or three times a day. It does burn the eye initially, but it's not harmful, and the burning goes slowly away over time. It does take a few months to start working.

Maybe, maybe not, maybe like teflon, the real poison is an intermediate ingredient, but I think its bullshit that we're just creating chemicals that linger in our water supply for eternity. You literally cannot find anyone in America without traces of the dangerous variant of the PFAS in their blood stream. Like every sip of water is some ridiculous dupont cocktail and we have to tolerate it because people have dry eyes and want non stick pans. Why cant you just use theratears?

> You literally cannot find anyone in America without traces of the dangerous variant of the PFAS in their blood stream.

You also can't find anybody in the world without traces of lead, arsenic, uranium, radium, and other chemical elements in their blood.

> Why cant you just use theratears?

Because they don't work.