I have an astigmatism and use Acuvue Moist Daily Disposables.

They work very well and I have good stable vision for a couple of weeks or so changing the lenses daily. After a couple of weeks they just seem to stop working, vision is blurred. If I stop wearing them for a few weeks then start again good vision returns - again for a couple of weeks.

Thought it might be my eyes drying out and tried Hycoscan Extra but this made no difference.

Anyone else experienced this? Any ideas what could be causing the problem?

Many thanks