A model for a gradient index intraocular lens (IOL) is presented. The distribution of the refractive index is Gaussian, varying radially in the equatorial plane and with distance from the optic axis in the sagittal plane. An algorithm for adjustment of the optimal gradient index distribution for individual parameters of a pseudophakic eye is also described. The performance, in terms of spherical aberration and resultant image quality that can be provided with the gradient index IOL, is compared with that provided by a commercially available IOL (Tecnis Z9000).
Siedlecki, D., Kasprzak, H., & Pierscionek, B. K. (2008). Radial gradient index intraocular lens: a theoretical model. Journal of Modern Optics, 55(4-5), 639-647. https://doi.org/10.1080/09500340701469625