Extended Depth-of-Field Intraocular Lenses
Extended depth-of-focus (EDOF) optical profiles are a new optical design that is currently considered as an attractive alternative to accommodative and multifocal intraocular lenses (IOLs). Currently several optical principles might be utilized to indicate the physical mechanism of light bundling and are applied to EDOF IOLs—diffractive and/or refractive design, bioanalogic IOLs and small aperture design. Although EDOF IOLs allow relative spectacle independence, the explantation rate may be higher than for monofocal IOLs. The intolerance of total induced aberrations could significantly contribute to patient dissatisfaction after IOL implantation. The aim of this chapter is to discuss the currently available evidence on the use of induced ocular aberrations, particularly in extended depth-of-field lenses and their clinical application.
KeywordsAberrations Extended depth-of-focus Extended depth-of-field Intraocular lenses Presbyopia
Longitudinal chromatic aberration
Root mean square
Conflict of Interest
Dr Alio declares that he has no conflict of interest.
Dr Grzybowski declares that he has no conflict of interest.
Dr Kanclerz declares that he has no conflict of interest.
No human studies were carried out by the authors for this article.
No animal studies were carried out by the authors for this article.
- 5.Plakitsi A, Neil Charman W. Comparison of the depths of focus with the naked eye and with three types of presbyopic contact lens correction. Cont Lens Anterior Eye. 1995;18(4):119–25.Google Scholar
- 6.Buckingham R, Lowther GE. Power distribution across a back surface, rigid multifocal contact lens. Int Contact Lens Clin. 1982;9(4):213–7.Google Scholar
- 41.Weeber HA, Hütz WW, Goes FJ, Piers PA. Influence of corneal aberrations on Dysphotopsia with multifocal IOLs. Investig Ophthalmol Vis Sci. 2011;52:6186.Google Scholar
- 45.Savini G, Schiano-Lomoriello D, Balducci N, Barboni P. Visual performance of a new extended depth-of-focus intraocular lens compared to a distance-dominant diffractive multifocal intraocular lens. J Refract Surg. 2018;34(4):228–35. https://doi.org/10.3928/1081597x-20180125-01.PubMedPubMedCentralCrossRefGoogle Scholar
- 48.TECNIS. Symfony® extended range of vision IOLs DFU. Santa Ana: Calif. Abbott Medical Optics Inc. http://www.tecnisiol.com/us/media/pdf/symfony/TECNIS-Symfony-DFU.pdf.
- 49.Weeber HA. Multi-ring lens, systems and methods for extended depth of focus. US Patent. 19 June 2014.Google Scholar