Why is it bad to use expired contact solution?

Question

I have rigid gas perm contacts and was wondering why conditioning solutions expire after around 90 days after opening?
Is it still safe to use after it "expires"?

lissabubz · Accepted Answer

It is "safe" but probably less effective. If you continually use the expired bottle, impurities may not get cleaned off the contacts as well and you could eventually have issues. You are not really getting your money's worth if you use an expired bottle because the solution isn't going to clean the lenses as well as an unexpired bottle would.

schank · Answer

Expired Contact Solution

Lemmy · Answer

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RE:
Why is it bad to use expired contact solution?
I have rigid gas perm contacts and was wondering why conditioning solutions expire after around 90 days after opening?
Is it still safe to use after it &quot;expires&quot;?

Ewa · Answer

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You need to throw that old solution out!! You are setting yourself for a really bad infection because the solution is not cleaning the lenses as it once did. I used old solution for 4 months after it expired and my lenses started becoming harder and harder to get out of my eye. Eventually one of my eyes ended up getting infected because the solution no longer had enough of the ingredient to cleans off the protein buildup. Yuck that was worse than pink eye! My advice is to get rid of it and invest a few dollars in some fresh solution that has everything you need to maintain clean lenses and healthy eyes!

pennybarr · Answer

Because they supposedly lose the strength of the properties contained in the solution.  You can probably safely use the expired solution for a week or so after the expiration date.  You should check with your eye specialist to be sure that it is safe to use. Just call his/her office.

Anonymous · Answer

The chemicals used in it will be weaker and less effective at removing dirt and other garbage so it won't clean your lens as well as an unexpired bottle.

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Why is it bad to use expired contact solution?

6 Answers