Process for optical coherence tomography, comprising: - recording a plurality of first images (34) of OCT slice, representing each first slice image (34), a different slice of an object (12), - confirming a figure of reference (44) that is representative of the three-dimensional contour of at least one structural characteristic (36) of the object (12) in a given three-dimensional coordinate system (x, y, z) by recognition of characteristic of at least one structural characteristic (36 ) on each of the first images (34) of slices, - record a plurality of second images (46) of slices of OCT, representing each second image (46) of slice, a different slice of the object (12), where a period of time necessary for the recording of a first slice image (34) is shorter than a period of time necessary for the recording of a second slice image (46), - moving at least a fraction of the s second images (46) of slices in the coordinate system (x, y, z) until each second slice image (46) overlaps in feature with the reference figure (44), and - generate a data set of three-dimensional OCT image at least from the second slice images (46) overlapped in feature.Proceso para tomografía de coherencia óptica, que comprende: - grabar una pluralidad de primeras imágenes (34) de rebanada de OCT, representando cada primera imagen (34) de rebanada, una rebanada diferente de un objeto (12), - confirmar una figura de referencia (44) que es representativa del contorno tridimensional de al menos una característica estructural (36) del objeto (12) en un sistema de coordenadas tridimensional dado (x, y, z) por reconocimiento de característica de al menos una característica estructural (36) en cada una de las primeras imágenes (34) de rebanadas, - grabar una pluralidad de segundas imágenes (46) de rebanadas de OCT, representando cada segunda imagen (46) de rebanada, una rebanada diferente del objeto (12), en donde un período de tiempo necesario para la grabación de una primera imagen (34) de rebana
