Disclosed are methods and apparatus, including eyewear and a contact lens, for delivering sound energy to an eye, comprising two or more sonic or ultrasonic transducers that emit sound energy, wherein each transducer is (i) operably linked to a power source and (b) capable of emitting sound energy at more than one frequency and for a variable time period; and a positioning mechanism to position the transducers at an exterior surface of an eye so as to deliver sound energy to an internal part of the eye, for example the Schlemm's canal or trabecular meshwork.