The invention provides a method, system, and device for connecting loose trial lenses into a virtual reality (VR) headset, augmented reality (AR) headset, or other head mounted display. The system consists of two components: First, a component that is installed mechanically into the headset and which remains in the headset throughout the duration of its use. Second, a component which holds loose trial lenses and can be inserted and removed from the headset at will. The two components may connect to each other mechanically, magnetically, electrically, or by other means. In the magnetic system, both components contain embedded magnets that allow the second component to hold loose trial lenses inside the headset magnetically.