Analysis and applications of accommodative lenses for vision corrections

摘要

Abstract. Analysis and applications of vision correction via accommodating intraocular lens (AIOL) are presented.nBy Gaussian optics, analytic formulas for the accommodation rate function (M) for two-optics and three-opticsnsystems are derived and compared with the exact numerical results. In a single-optics AIOL, typical value of M isn(0.5–1.5) D/mm, for an IOL power of (10–20) diopter. For a given IOL power, higher M is achieved in positive-IOLnthan negative-IOL. In the dual-optics AIOL, maximum accommodation is predicted when the front positive-opticsnmoves toward the corneal plan and the back negative-optics moves backward. Our analytic formulas predict thatngreater accommodative rate may be achieved by using a positive-powered front optics, a general feature whenneither front or back optics is mobile. The M function is used to find the piggy-back IOL power for customizedndesign based on the individual ocular parameters. Many of the new features demonstrated in this study can beneasily realized by our analytic formulas, but not by raytracing method. C u00022011 Society of Photo-Optical Instrumentation Engineers