General aging model for schematic eyes

Abstract

A general methodology for modeling the aging process of the human eye is proposed. The two main changes that occur with age are: an increase in the dimensions of the crystalline lens an a flattening of its internal GRIN. These two processes are modeled respectively with a set of scaling factors and the introduction of a composite function called the plateau function. The methodology is put to test with three different schematic eye models: The Poisson Gauss, the Composite Modified Luneburg and the AVOCADO model. In each model the aging methodology was implemented and yielded satisfactory results in terms of: physiological fidelity, position of the focal plane and evolution of Zernike’s primary spherical aberration.