I mean why it is not enough to use a solution
which kill all the "bugs" and keeps wet the RGP lenses ?
I noticed that the solution is more viscous. What's in it ?

G@B schreef:

You already give a part of the answer in your second question.

Saline solution is NOT a killer, only a rinsing solution.

An other question after someone stated you can use saline solution shall
come , read my lips.......

Here it is in advance: can I use home made saline solution because what
I bought in the shop was so terrible expensive.

Honestly, take the advise of your practitioner and use the solution he
or she recommended.

Jan (normally Dutch spoken)

Normal saline will not provide disinfection and bacteria/fungi may grow
on the lens and in the case overnight, leading to eye infections.

Additionallly, rigid lens soaking solutions condition the lens making
the material more hydrophillic and comfortable.  Some solutions also
have protein softeners in them, keeping the lens cleaner, more
comfortable, providing clearer vision and avoiding lid problems
associated with dirty lenses.

Next, you will complain about the high cost of soaking solution.
Sorry, I disagree.  A year's supply of rigid lens soaking solution
costs about $60 to $75 per year or about $0.30 a day.  If you can't
afford that, give up one store bought coffee every three days, or one
beer every two weeks or one movie night out every two months or
whatever it takes to afford your lens care solution.

Dr Judy