I have just discovered this site. I had my eyes treated by Mr Daya over two years ago. I had -2.75 astigmatism in both eyes. Although there is still a tiny amount of residual astigmatism I had 6/4 ( 20/15) vision in both eyes one month after the surgey. I cannot recommend the Zyoptix wavefront treatment enough. Before the treatment i could hardly drive at night because oncoming headlights used to flare so much i had to brake. Since having the Zyoptix treatment I could see far better at night. also I have noticed that more people achieve 20/15 6/4 after Zyoptix treatment.