title: Meta-analysis of accommodating intraocular lenses.
abstract: Accommodating intraocular lenses (IOLs) based on the concept of optic shift were introduced to restore accommodation after cataract surgery. Currently, 3 types of accommodating IOLs are commercially available: 1CU (HumanOptics), BioComFold (Morcher), and AT-45 Crystalens (eyeonics, Inc.). We present a meta-analysis of the peer-reviewed data from studies of these IOLs that use optic-shift measurements and visual acuity as the main outcome measures. In the 6 randomized controlled studies, 5 of which studied the 1CU IOL, the visual acuity results showed moderate to no improvement in near visual acuity compared with control IOLs and a statistically significant but small and inter-patient variable anterior shift of the IOL optic after pilocarpine stimulation. More clinical trials with randomized, controlled, and patient- and examiner-masked study designs that follow the guidelines of evidence-based medicine are needed to prove a benefit of accommodating focus-shift IOLs.
authors.affiliation: Department of Ophthalmology, Medical University of Vienna, Vienna, Austria. oliver@findl.at
authors.forename: Oliver
authors.initials: O
authors.lastname: Findl
authors.forename: Christina
authors.initials: C
authors.lastname: Leydolt
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D018918:Phacoemulsification; D019591:Pseudophakia / Q000503:physiopathology*; D016032:Randomized Controlled Trials as Topic; D014792:Visual Acuity / Q000502:physiology