angle-supported intraocular lens angle-supported intraocular lens angle-supported intraocular lenses are a special kind of intraocular lens that can be implanted surgically into the anterior chamber of the eye. these lenses are called angle-supported because the footplates of the lens rest in the irido-corneal angle. current models of angle-supported phakic iols include: acrysof ac, phakic 6, kelman-duet, i-care, zsal-4, vivarte and nuvita. neither have fda approval yet.