MODELLING OF NONSTATIONARY DYNAMICOCULAR ABERRATIONS

摘要

The human eye is an optical system with its own characteristic aberrations.It has been well established that the aberrations of the eye are dynamic - i.e.that they vary over time. The goal of this work is to develop methodologiesfor computer modelling and simulation of these dynamic aberrations. Dynamicaberrations can be measured experimentally using a wavefront sensor. Analysisshows that the time-series for the various aberration modes are nonstationary.This makes the goals of analysing and modelling the process more difficult.An Autoregressive Integrated Moving Average (ARIMA) modelling approachis described, and results are presented.