Optical coherence tomography ("OCT") corneal mapping apparatus whichincludes, in a first aspect of the present invention: (a) an OCT apparatuswhich is comprisedof apparatus for altering a reference beam path; (b) raster scanner for rasterscanningsampling optical output from the OCT apparatus; (c) a curved mirror fortransferring thesampling optical output from the raster scanner to an eye and for transferringthe samplingoptical output reflected from the eye back to the OCT apparatus through theraster scanner;and (d) an analyzer, coupled to the raster scanner, the altering apparatus,and reference andsampling interaction output from the OCT apparatus for causing: (i) the rasterscanner tomove the sampling optical output to points in a raster; (ii) the alteringapparatus to alter thelength of the reference beam path over a predetermined amount at each of thepoints; and(iii) determination of the corneal mapping from the reference and samplinginteractionoutput at the points in the raster.
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