Assertion: piggyback | /r/CapableOf | continue to be useful and versatile tool
Facets:
value: for correcting refractive error
type: PURPOSE
Source sentences:
text: A piggyback IOL continues to be a useful and versatile tool for correcting refractive error remaining after cataract surgery, and expanded uses for piggyback IOLs have recently been described, including the correction of refractive error in very young children undergoing cataract surgery.