Overcorrected and astigmatism induced after Prk. Should I have another procedure?

I had a LASEK surgery 3 years ago. From -6,5 I was overcorrected to +2,5 and the surger created an astigmatism of -1.5 (I had none before). As I was hoping for a regression over time and my eyes have been very dry, I waited this long. However , nothing changed, maybe except for that my eyes are less dry now. Should I get an enhancement? I am under 40 but this much overcorrection and the astigmatism are very bothersome.