2020–2021 BCSC Basic and Clinical Science Course™
11 Lens and Cataract
Chapter 8: Optimizing Refractive Outcomes of Cataract Surgery
The accommodating lens was designed to improve distance, intermediate, and near acuity via the movement of its hinged haptics during the accommodative process. Currently, 1 accommodating IOL design (and a similar toric accommodating IOL) has been approved for use by the US Food and Drug Administration (FDA). The accommodating IOL provides some degree of improved intermediate vision (Fig 9-3). A possible mechanism of action that would explain this improvement is that this IOL provides some pseudoaccommodative depth of focus, because there is no clear clinical evidence that these “accommodating” IOLs change axial position in the eye during near-vision tasks.
Table 9-2 Examples of Presbyopia-Correcting Intraocular Lenses Available in the United States
Figure 9-3 Accommodating IOL.
(Illustration courtesy of Mark Miller.)
Dhital A, Spalton DJ, Gala KB. Comparison of near vision, intraocular lens movement, and depth of focus with accommodating and monofocal intraocular lenses. J Cataract Refract Surg. 2013;39(12):1872–1878.
Excerpted from BCSC 2020-2021 series: Section 11 - Lens and Cataract. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.