Meta-analysis of accommodating intraocular lenses

J Cataract Refract Surg. 2007 Mar;33(3):522-7. doi: 10.1016/j.jcrs.2006.11.020.

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.

Publication types

  • Meta-Analysis

MeSH terms

  • Accommodation, Ocular / physiology*
  • Humans
  • Lens Implantation, Intraocular
  • Lenses, Intraocular*
  • Phacoemulsification
  • Pseudophakia / physiopathology*
  • Randomized Controlled Trials as Topic
  • Visual Acuity / physiology