Contacts thinner after three weeks of use?

Do contact lenses become thinner after using them a few weeks? I have
been wearing a pair of Biomedics 55 for three weeks and they seem
notably thinner. Is this the typical evolution? Or is it only my own
appreciation?

If the lenses becomes thinner with use, does its oxygen transmission
increase? So is wearing old lenses healthier?

Thanks a lot

 

no. contact lenses do not become thinner with use.

 

OK, it should be my impression. Or they can be drying...

Thanks

 

as I understand it, Biomedics 55 is a 2-week lens. They shoul be
replaced after 2 weeks.

 

That depends on where you are. It's marketed as a 2-week lens in
America, but a monthly lens in Europe (I think) and parts of Asia.

 

Yes, it's sold as a monthly lens here, in Spain (and the rest of
Europe).

 

I'm no doctor, I have no clue and I'm just guessing. Most people think
things are thinner because they are more flexible (or to put it another
way, flimsier). Perhaps with age they've just lost their shape and are
more flexible?

 

You could be right... but I don't know if lenses lose their shape with
age.

Thanks!