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dc.contributor.authorHampson, Karen M.*
dc.contributor.authorMallen, Edward A.H.*
dc.date.accessioned2014-04-28T10:41:15Z
dc.date.available2014-04-28T10:41:15Z
dc.date.issued2012
dc.identifier.citationHampson, K. M., Mallen, E. A. (2012) Chaos in ocular aberration dynamics of the human eye. Biomedical Optics Express, 3(5), 863-877.
dc.identifier.urihttp://hdl.handle.net/10454/6002
dc.description.abstractSince the characterization of the eye's monochromatic aberration fluctuations in 2001, the power spectrum has remained the most widely used method for analyzing their dynamics. However, the power spectrum does not capture the complexities of the fluctuations. We measured the monochromatic aberration dynamics of six subjects using a Shack-Hartmann sensor sampling at 21 Hz. We characterized the dynamics using techniques from chaos theory. We found that the attractor embedding dimension for all aberrations, for all subjects, was equal to three. The embedding lag averaged across aberrations and subjects was 0.31 +/- 0.07 s. The Lyapunov exponent of the rms wavefront error was positive for each subject, with an average value of 0.44 +/- 0.15 microm/s. This indicates that the aberration dynamics are chaotic. Implications for future modeling are discussed.
dc.subjectREF 2014; Human eye; Visual optics; Power spectrum; Ocular aberration dynamics
dc.titleChaos in ocular aberration dynamics of the human eye
dc.typeArticle
dc.identifier.doihttps://doi.org/10.1364/BOE.3.000863


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