This is why they are classified as "accommodating IOLs."Both lenses are manufactured and distributed by Bausch Lomb.
Accommodation is a process that enables the eye to adjust its focusing power to provide clear vision at all distances. Accommodation is made possible by the lens inside the eye and the circular muscle that surrounds the lens, called the ciliary muscle.
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Currently, Crystalens and Trulign Toric IOLs are the only FDA-approved presbyopia-correcting IOLs for cataract surgery that improve near vision by a focusing process called accommodation.Crystalens and Trulign Toric accommodating IOLs are premium intraocular lenses and therefore cost more than conventional monofocal IOLs.