Accommodative and Dual Optic Intraocular Lenses
Pp. 102-128 (27)
Mark Packer, H. Burkhard Dick and George Beiko
The purpose of this chapter is to provide perspective on intraocular lens
technology designed to achieve accommodative function in the pseudophakic state. We
briefly introduce the fundamental physiologic optics of accommodation and presbyopia,
and then review the achievements and limitations of multifocal intraocular lens
technology. We detail the historical development and current status of three single optic
accommodative designs, the crystalens, the 1CU and the Tetraflex. Summaries of
published and presented clinical studies demonstrate the range of accommodative
amplitude expected with each lens, while imaging and biometric data provide
conflicting evidence regarding the mechanism of action of these devices. We then
examine the Synchrony dual optic accommodative IOL in detail, providing summaries
of all available clinical data along with supportive imaging results. In a final section we
discuss a couple of novel technologies that lie on the horizon of accommodative IOL
implementation, the NuLens and the FluidVision lens.
Accommodative intraocular lens, accommodation, presbyopia
correction, pseudophakia, dual optic.
Clinical Associate Professor, Oregon Health & Science University, 4075 Southpointe Dr. Eugene, OR 97405, USA.