An inflatable mask with two ocular cavities can seal against a user’s face by forming an air-tight seal around the periphery of the user’s eye socket. While grasping the rubberized foam handle grip in the palm of the hand of the operator, a thumb engages and holds a push button or rocker switch to switch between the wide angle and telephoto mode. A supportive structure is also sheared and configured into a predetermined shape. The ring portion has an inside diameter that is smaller than the inside diameters of the end portion or portions. The present invention relates to a medicine which comprises a combination of a general anesthetic and hydrogen and can prevent andor alleviate an anesthetic-induced neurological deficit in the brain.