I suggest you all do the homework before visiting optical express. I was treated appallingly. Made to cry. Telling me I just have to get used to the final outcome, of not seeing through the whole of my eye. They prolonged the time to of correcting this so it ran after the year garentee stage. So ending up paying again. Which I couldn't afford. So now I have to live like I'm submerged in water at the bottom of my eyes. I did get a solicitor that said I had a case, but with all the stress, it's now on hold. Please read all the negative forums for this clinic.