An air fairing device is connected below the bottom a frameless trailer to improve aerodynamic efficiency and improve fuel economy. The handpiece includes an ultrasonically driven, hollow, sleeved needle and the method includes inserting the needle and sleeve into an eye for phacoemulsification of eye tissue and introducing fluid into the eye through an annulus established between the sleeve and the needle. The first computer system formulates metadata representing the location and boundaries of a media application window.