All IOLs sold in the USA are high quality and manufacturing problems are extremely rare.
I think you may be referring to "premium" IOLS. This means they have extra features built into them such as multifocal, accommodating, torix all of which cost extra and have increased risk of complications and aspheric which is the best way to put a lens power on the optic.
JCH MD
Would "ACRYsof" acrylic foldable IOL be one of the better brands?