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4-4
4.6 Fourier analysis
The Fourier analysis expresses a specific cyclic pattern
using the sum of multiple trigonometric functions.
The cyclic pattern in TMS is the distribution of the corneal
refractive powers of each Mire image. Order components
obtained when developing this pattern in the sum of
trigonometric functions can be separated and quantified
as the spherical component of the cornea, asymmetry
component, regular astigmatism component, and higher
order irregularity. Therefore, this analysis can be used as
an approach to evaluate the optical characteristics of the
cornea.
Summary of Contents for TMS-5
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