TABLE 1.

Properties of common IOL materials.

Materials	Foldable/unfoldable	Biocompatibility	Advantages	Disadvantages
PMMA	Unfoldable (rigid)	Low rate of inflammatory cell accumulation	Low cost	5–6 mm incision to insert
		High rate of PCO*	Low aqueous flare
			High visual quality
PDMS	Foldable (soft)	Low rate of inflammatory cell accumulation	Small incision	Tissue injury during expanding in capsular
		Fibrotic reaction of lens surface		Opacification of surface after contacting with intravitreal air
Hydrophilic acrylic	Foldable (soft)	Low rate of inflammatory cell accumulation	Low aqueous flare	Limitation in shape design
		High rate of PCO calcification	Easy to handle	Long-term IOL opacification
Hydrophobic acrylic	Foldable (soft)	Low rate of PCO	Good visual quality	High aqueous flare
		High rate of inflammatory cell accumulation	Compatible with a sharp-edged design	Tacky surface
				High RI*

*PCO, posterior capsular opacification; RI, refractive index.