Patent ID: 7959289

Claim:
An ophthalmological device, comprising: a light projector configured to project a beam of rays through a cross-sectional portion of an eye; first image-capturing means disposed in Scheimpflug configuration with respect to the beam of rays and configured to capture in a first instrument position a cross-sectional image of at least a sub-area of the cross-sectional portion, illuminated by the light projector; a motion driver configured to move the first image-capturing means to a second instrument position, at which second instrument position the first image-capturing means are disposed in Scheimpflug configuration with respect to the beam of rays; second image-capturing means configured to capture a first top view image of at least part of the eye, while capturing the cross-sectional image in the first instrument position, and a second top view image of at least part of the eye, while capturing the cross-sectional image in the second instrument position, the second image-capturing means being linked to and moved by the motion driver; an extraction module configured to extract at least one reference section from the first top view image, and to extract at least one comparative section from the second top view image in a location obtained through a reverse transformation to compensate for movement of the second image-capturing means by the motion driver; a measurement module configured to determine a displacement between the reference section extracted from the first top view image and the comparative section extracted from the second top view image; and a positioning module configured to position relative to each other cross-sectional images, captured in the first instrument position and the second instrument position, based on the displacement determined between the reference section extracted from the first top view image and the comparative section extracted from the second top view image.