My grandson who is 6 has a problem with the muscles behind his eyes. It was therefore, necessary to have his glasses made with prisms in each of the lenses. His Mother took him to an optical store on the Upper West Side (UWS) of Manhattan who took her insurance. My grandson took his new glasses with him to the eye doctor who does his visual training. He said the prisms weren’t in the right place. I took him back to the optical store and was told that the eye doctor was incorrect, but that they would do them over anyway. When the glasses came back he was still complaining, so I took him to Royal Opticians on the UWS, where I’ve gotten my glasses for the past 30 years.They discovered that each lens was a slightly different distance from his eyes. If you know anything about prisms, this slight variation could not only impair his vision but, undo a years worth of muscle eye training. We are now so pleased with his new glasses and would like everyone to know that Royal Opticians is a first-rate optical store where each customer is treated with care and precision. Thanks to their expertise my grandson has a new pair of perfect glasses that he loves. My daughter now realizes that Royal Opticians is the only place to go for real professional and honest service. By the way, the glasses cost around the same price as those he got from the store that took her insurance.