Purilens Plus Saline
Purilens Plus (and Purilens Mini) is a pH balance preservative-free saline sold in 4oz or 2oz bottles. It is buffered (i.e. it has additives to maintain a pH similar to the eye). It is very popular with new scleral lens users who need a lot of saline for multiple insertion attempts, and it is popular with people who, in general, need a lot of solution for rinsing, for example if they are repeatedly removing, cleaning and re-applying their lenses during the day.
Purilens is packaged in a multi-dose bottle. It is important to understand that these bottles can become contaminated and must be discarded within 14 days. You must be very careful to avoid touching the tip of the bottle to your lenses, eyes, or any surface. Some providers recommend refrigerating this product and some may recommend that you discard it within a shorter period than the FDA-approved 14 day labeling, if you are using it for filling lenses and not just rinsing.
The Purilens caps are the “puncture” type: you remove the cap, remove the white plastic ring, then replace the cap and screw it in hard to puncture the sealed bottle top.