a navigation apparatus for optically analyzing an inner structure of an optical element and processing that element includes a detection device and a processing device . the detection device has an aperture smaller than 0 . 25 and the processing device is disposed relative to the analyzed inner structure of the optical element . an apparatus for planning therapy for a human eye includes a dynamic wavefront measurement device for acquiring wavefront data , a diagnostic device for determining geometric parameters of the optical apparatus of the eye , a controller for consistent superposition of the wavefront and geometric data , and an additional controller for planning the most efficient therapeutic laser cutting paths .