A set of ordered predicted completion strings are presented to a user as the user enters text in a text entry box. The steroid and the auxiliary agent may be present on the same intraocular implant or on different implants. In one exemplary method of unrolling loops, the processor or trace cache unrolls loops until the trace is a minimum length. The circuit complexity, the power consumption and the failure rate of the whole green power converter are greatly lowered, and the power converter can be applied in all the fields to replace the traditional power converter.