From Eschenbach:
When your patients wear the MaxEvent® telescopic glasses, they will positively feel close to the action. They are an easy-to-fit, binocular distance system that makes indoor and outdoor events more crisp and clear!
These hands-free, head-mounted glasses provide 2.1x magnification and can be adjusted so that each eye lens is able to be focused separately [±3 diopters], making the system adaptable to most patients. The glasses will focus on objects from distances of 3 meters [10 feet] to infinity, and are perfect for viewing sports events, concerts, movies, theater, bird watching, or any other distance viewing activity where a magnified image would be helpful.
MaxEvent® glasses are similar to the MaxTV® glasses except that the MaxEvent® glasses feature a mirrored coating that has been applied to the lenses by a process called vapor deposition. The mirrored coating eliminates sun glare and ensures that "enlarged eyes" of the wearer are not visible to the external observer. With flexible temples and rounded edges, MaxEven® t telescopic glasses are the most comfortable long-range viewing device ever.