I'm ordering some Sensitive Eyes Plus Saline Solution http://www.amazon.com/gp/product/B00EALX660 -Use for rinsing after daily cleaning and before insertion I assume before insertion means 'filling' for insertion. Comments on amazon don't outright state they use for insertion, but several keratoconus posts say they 'use' it, so that buffered my assumption. I've been trying to unisol for weeks now locally, finally remembered to google it and found it's discontinued. Used the stuff for years now.