Ophthalmologic device and ophthalmologic measuring method

Details Ophthalmologic device and ophthalmologic measuring method Ophthalmologic device and ophthalmologic measuring method

2007-09-04

2007-09-04

Dang, Hung (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

C351S206000

Reexamination Certificate

active

10730923

ABSTRACT:
Proposed are an ophthalmologic device and an ophthalmologic measuring method in which, by means of a light projector, a beam of rays, for example a light slit, is projected through a cross-sectional portion of an eye, in particular through a cross-sectional portion of the cornea of the eye. A cross-sectional image of at least one sub-area of the cross-sectional portion illuminated by the light projector is captured by image-capturing means which are disposed in Scheimpflug configuration with respect to the beam of rays. A view image of the eye, comprising an image of the cross-sectional portion illuminated by the first light projector, is captured by further image-capturing means and is stored assigned to the captured cross-sectional image. The relative position of the stored cross-sectional image to the eye is determined on the basis of the stored assigned view image, and the stored cross-sectional image is positioned relative to previously stored cross-sectional images of the eye. A coherent examination of the entire eye is made possible in which the relative movements of the eye with respect to the device are taken into consideration.

REFERENCES:
patent: 4523821 (1985-06-01), Lang et al.
patent: 5202708 (1993-04-01), Sasaki et al.
patent: 5341180 (1994-08-01), Isogai et al.
patent: 0 933 060 (1999-08-01), None

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