Can I switch between two diffrent brands of contact solution?

[Orin]

I have two diffrent brands of contact solution and I use one brand for first 2 days,and another brand for the next. Will that do harm to my contact lenses?

[Orinda]

You'd better not. Though there is little difference between the two brands of contact solution, your eyes have a period for adaptation. So if you often change the solution, your eyes may get hurt.

[Oriska]

Yes, you can. Almost all the brands are the same ingredient. It is just like switch between different shapoos. But it is for eye use, you need to be much careful with it.