I think my experience with Dr. Friedman was excellent! At first, when Dr. Friedman was explaining to me how the ortho-k lenses work, he was very patient and explained everything so clearly that I could understand it very well. It took me 2 weeks to get used to them. It's been 7 months that I've used the lenses and putting them in and taking them out are so much easier now. When I do my favorite activities I don't have to wear glasses and I can see very well. I would highly recommend Dr. Friedman to anyone who needs ortho-k lenses.