“…An advantage of the supplementary IOLs (also known as secondary or additional IOLs) is their position in the sulcus in contrast to the classic piggyback technique, which requires implantation of both the primary and secondary IOLs into the capsular bag. The classic piggyback technique was associated with a number of complications, namely, interlenticular opacification (ILO) [9][10][11][12], postoperative elevation of intraocular pressure, pupillary optic capture after mydriasis [13,14], iris chafing, pigment dispersion syndrome [15,16], and secondary pigmentary glaucoma [15,16]. The implantation of these IOLs in the ciliary sulcus increases the distance between the 2 IOLs significantly, thereby reducing (but not eradicating) lens-lens contact and the possibility of ILO.…”