How to make sterile saline for contact lens storage

It would be amazing to learn how to make sterile saline solution for simple contact lens solution. Most commercially available contact lens solutions have harsh detergents (granted, to keep bacteria at bay), and they are expensive and irritating. I've been using plain sterile saline for years without issue but it's just salt and water - can't somebody tell us how to make it for free?

NOTE: Nevermind. I just saw this crazy letter. http://www.craig.copperleife.com/health/saline.htm. I will stick with store-bought.

ry259208 years ago
Yeah, saline is sorta Important for contacts. DON'T MAKE IT. Bad idea
gr33ko8 years ago
Recipe: 1 level tsp. salt to 1 cup boiling water. Boil for 10 minutes, then cool off.