Vivity Extended Depth-of-Focus Intraocular Lens
摘要
Extended depth-of-focus (EDOF) intraocular lenses (IOLs) were designed to provide good distance and intermediate vision while keeping some minimal amount of “functional” near visual function, and at the same time reduce and minimize the amount of photic phenomena seen with trifocal IOLs. However, EDOF IOLs still have certain drawbacks, particularly in terms of visual disturbances (mainly linked with diffractive models), and the quality of vision they may provide. To address these limitations while still fulfilling the range-of-vision requirements for EDOF IOLs, a novel optical technology called wavefront shaping has been developed (Vivity IOL, Alcon). Unlike diffractive optics, wavefront-shaping technology maximizes the efficiency of transmitted light across the entire range of vision, without wasting light energy at high diffractive orders. In this chapter, we will review this technology and will focus on the reported clinical outcomes obtained with this new type of EDOF IOL in the most recent studies and clinical trials.