This is a device like on Star Trek where Geordi La Forge uses a VISOR to replace his blind eyesight. However with this one it is a Virtual Reality googles like Occulus Rift that use a smartphone and a remote video camera that transmit onto internet so snartphone can view it. It can be used to remotely feed telescopes, microscopes, and video camera of your surroundings. You could replace your prescription eyeglasses as the display is right up to your eyes and all visual acuity is via a camera. I'm thinking of ordering a VR goggle on EBAY soon. I already have an IP Camera and a smartphone.