I was so impressed by the Pretavoir service, extensive range and prices. I was quite nervous about buying designer frames with varifocals online as I was worried about the measurements being correct especially for an expensive purchase. I ordered three frames to try and then selected some Prada ones to buy with lenses. You simply take photos wearing the frames and once approved the lenses are underway straightaway. I received my glasses just over a week later. They are perfect and really good quality. I bought the standard varifocal lenses with an antiglare coating and they are great. Very light and comfortable. It would be good if a few more of the styles had the virtual try on option but appreciate with so many styles that's a big ask. The only problem with Pretavoir is choosing which frames from such a huge selection which is a great problem to have.