A non-stationary model for simulating the dynamics of ocular aberrations | Zendy

Conor Leahy | Zendy; Chris Dainty | Zendy

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A non-stationary model for simulating the dynamics of ocular aberrations

Author(s) -

Conor Leahy,

Chris Dainty

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.021386

Subject(s) - optics , computer science , optical aberration , generator (circuit theory) , noise (video) , adaptive optics , wavefront , physics , artificial intelligence , power (physics) , quantum mechanics , image (mathematics)

The time-evolution of ocular aberrations has been the subject of many studies, but so far there has been little discussion involving the modelling of the underlying temporal statistics. This paper presents a non-stationary modelling approach based on a coloured-noise generator, which can be applied to ocular aberration dynamics. The model parameters are computed from measured ocular aberration data. A custom-built aberrometer based on a Shack-Hartmann sensor was used for measurement. We present simulations based on our modelling approach, and validate them through comparison to real data. This work could be useful in areas such as the testing of ophthalmic devices and the development of improved algorithms for laser refractive surgery.

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