In a first aspect, the invention provides an IOL having an optic with a peripheral section including one or more visually observable markers formed on the optic peripheral section and located within the visually observable zone of a surgeon viewing the IOL in the implanted condition through the pupil. In a second aspect of the invention, the IOL peripheral section includes an edge provided with a plunger engagement segment configured to inhibit off-axis movement of a plunger tip when engaged therewith.
