I received my BluTech lenses over a year ago and can admit I just started wearing them. I knew all the advantages but I’m a little vain and didn’t like the yellow tint on the lenses. Now that I’m making an effort to wear them to work and while on the ipad at home I’ve noticed a difference. At the end of the day my eyes aren’t as tired. It really does soothe your vision. I’ve sold the lenses to several patients and now I can confidently say that I recommend the product.