Intraocular lens visualization and tracking system

A method of tracking an intraocular lens, the method comprising:

• rear-illuminating an eye that has an implanted intraocular lens (IOL), with an ophthalmic visualization system by
• generating a rear illumination light with a rear illumination system and projecting the rear illumination light with an optic onto a retina of the eye, so that a portion of the rear illumination light reflects from the retina as a reflected illumination light, wherein
• a central portion of the reflected illumination light propagates through the IOL to form an IOL-focused illumination light, and
• a peripheral portion of the reflected illumination light propagates around the IOL to form a peripheral illumination light;
• receiving and transmitting the IOL-focused illumination light and the peripheral illumination light by the optic;
• stopping the transmitted peripheral illumination light by an aperture stop;
• allowing the transmitted IOL-focused illumination light to pass through by the aperture stop;
• and
• forming an isolated IOL image based on the transmitted IOL-focused illumination light by an imaging system.