I have two different pairs of contact lens but I only have one casing. I can't get a second casing yet. Can I soak two lens on each side of the casing? Will it affect the lens? They are colored contact lens so I can differentiate which lens belongs with which on the other side when I put them together. The casing comes with the solution. And since I haven't finished my bottle, I'm not intending to get another bottle just for the casing.