Axon Optics is the original retailer of therapeutic eyewear and was founded by University researchers. We are the only company that offers transition lenses, contact lenses, and free premium anti-glare coatings. Your purchase funds additional clinical studies to improve the life of those with migraine (for example see www.migraineglassestudy.com). You're welcome to test our eyeglasses as we have a generous return policy. Feel free to contact us with further questions at support@axonoptics.com.