The glasses are comfortable to wear high-very high and after a short. They arise with the above and in accordance with good 3D TV Source a great result (previously tested with Avatar trailer and Coral Reef 3D). Of course you should not strain the eyes for hours, but it's a worthwhile addition. A flashing LED-disturbing I can not make out while wearing because these outside sitting in the model to the thicker edges of the glasses. I bought 2 glasses in the starter together with the latest Harry Potter film. A few months ago there was this even at a sensational price of about 80; I had to pay even more. Despite best price anywhere else!.