Be aware that Axon Optics SpectraShield lenses are only sold by Axon.  Any other frame or lenses from any other vendor are not warranted by Axon Optics and will not have therapeutic SpectraShield FL-41 lenses. No other lab or vendor has our proprietary SpectraShield FL-41 even if an optician or optical shop tells you otherwise (and even if they are located inside the VA). Contracted optical shops should contact Axon Optics directly at [email protected] for sales information.