Purilens Plus preservative free saline 

Hi Cathleen! Aidan here! So glad to hear our site and information is valuable. Have you seen our Scleral Lens User Tutorial yet? products.dryeyeshop.com/en-US/articles/scleral-lens-user-tutorial-8494

@@TheDryEyeShop yes indeed and it was incredibly helpful!

Hi there! Regarding Purilens - definitely NO - It's not safe to store any contacts in preservative-free saline at all. The only safe use of Purilens with lenses is rinsing and filling. What you're calling storage is really overnight disinfection, That can be done with a multi-purpose solution (there are many, Boston Simplus is a good reputable one) or wit Clear Care, which is a slightly more complicated system using hydrogen peroxide that gets "neutralized" overnight in a special case. I think that the term "saline" can get confusing because some people use that term to refer to soft contact lens solutions in general, including multi-purpose solutions (i.e. solutions that can be used safely to rinse lenses but which are also used for disinfection). However, saline solutions have no ability to clean lenses, and preservative-free salines are not safe to store lenses in. Hope this helps! Here's a couple of pages from our tutorial that you might find helpful - products.dryeyeshop.com/en-US/part-7-cleaning-and-disinfecting-scleral-lenses-33961 products.dryeyeshop.com/en-US/part-3-rinsing-&-filling-33957

It's not a labeled use of the product, but I would have to say it's a common use (and I do it myself) because most eye washes sold in drugstores are preserved with benzalkonium chloride. The big challenge with using unpreserved salines as an eyewash is that they are sold as either unit dose (use it, toss it) or 4oz bottle that needs to be discarded within two weeks. For safety's sake you don't want to keep opened vials/bottles around longer than the label says.

It would have to be 0.9% sodium chloride solution (I believe NS is also available in 0.45%?). Using it to fill scleral lenses is off-label so clear it with your eye doctor first. Also be aware that it is acidic, so for people with dry or sensitive eyes, adding a drop or so of preservative free artificial tears helps with comfort.

They need to be thrown away because they are preservative free and therefore will become contaminated after opening. Using them for months is a REALLY bad idea. We only get one pair of eyes. There have been studies done on all the kinds of icky critters and crud that accumulates in bottles of preservative free saline. Trust me, you don't want to be putting that in your eyes.