Why do unopened contacts last so much longer than monthly contacts

Question

I wear monthly contact lenses and usually the month long timeframe is pretty consistent for me and I can tell the difference in comfortability, but ill use a new unopened pair and they clearly feel so much better. Why do the unopened ones keep so well opposed to an open one. Is it some special solution they use? Or are they sealed airtight or something and that somehow protects them.. what’s the magic happening there?

In: 6

Answer 1

They are clean and sterile in the unopened pack. When you wear them, they accumulate protein and other irritants on them that even nightly cleaning can’t remove entirely.