1. A device for determining geometric measurement values of an eye, in particular a human eye, comprising: a light projector for projection of a beam of rays through a section of the eye, and imaging means for capturing a first image of at least a partial region of the section illuminated by the light projector, at a first observation angle, from a first position outside the beam of rays, and for capturing a second image of the partial region at a second observation angle, from a second position outside the beam of rays, wherein it further comprises: image processing means to identify eye structures from the first captured image, to identify eye structures from the second captured image, to measure a first distance between the eye structures identified from the first image and to measure a second distance between the eye structures identified from the second image, and processing means to calculate at least one of said geometric measurement values from the measured first distance and the measured second distance.