1. A system for cochlear implant surgery, comprising: a reference device having at least a portion adapted to be arranged at a fixed position relative to a cochlea of a patient to provide a reference position; an image acquisition and processing system adapted to acquire an image of at least a portion of said cochlea relative to said reference position and to provide an implant plan based at least partially on the acquired image; and an implant system adapted for implanting a cochlear lead array using said reference position and said implant plan.