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Ophthalmic Analytical Instruments and Methods

An analytical instrument, technology of analytical methods, applied in the direction of medical science, equipment for testing eyes, diagnosis

Active Publication Date: 2016-04-20
OCULUS OPTIKGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such problems are often overlooked when fitting contact lenses and can only be identified and quantified by further independent measurements on the eye in question

Method used

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  • Ophthalmic Analytical Instruments and Methods
  • Ophthalmic Analytical Instruments and Methods
  • Ophthalmic Analytical Instruments and Methods

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0032] figure 1 and figure 2 An overview of shows a schematic diagram of the analytical instrument 10 together with the eye 11, additionally in image 3 The illuminated front view of the analyzed instrument is shown in . The analytical device 10 is constituted by the first analytical device 12 and the second analytical device 13 . The first evaluation device 12 is designed in the form of a keratometer with a placido projection device 14 (indicated) and a monitoring device consisting of a camera 16 of an objective 17 and a video sensor 18 . An image pattern of concentric rings can thus be projected by the Placido projection device 14 onto the surface 19 of the cornea 20 of the eye 11 . This image pattern can then be recorded by the camera 16 and evaluated by an evaluation device (not shown in this case) in such a way as to determine the surface features of the cornea 20 .

[0033] The second evaluation device 13 comprises the monitoring device 15 of the first evaluation de...

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Abstract

The analyzer (10) has one analysis unit (12) for measuring curvature of cornea (20) of an eye (11). Another analysis unit (13) has a projection device (22) with a slit projection unit (21) for projecting a light slit onto the region of limbus of eye. An observation device (15) records an image of the light slit so that the topography of surface in the region of limbus is derived from the image of the light slit. An independent claim is included for method for analysis with ophthalmologic analyzer.

Description

technical field [0001] The invention relates to an ophthalmic analysis instrument and an analysis method using the ophthalmic analysis instrument, said instrument having a first analysis device for measuring the curvature of the cornea of ​​the eye, in particular a keratometer or the like, with a second analysis device comprising a projection device and a monitoring device , the projection device includes at least one slit projection unit (slit projection unit) for projecting slit light (lightslit) onto the surface of the eye, and a monitoring device is used to record images of the slit light. Background technique [0002] Several ophthalmic analytical instruments for determining the curvature of the cornea are well known. These analytical instruments usually include a projection device by means of which an image pattern can be projected onto the cornea. For example, in the case of a keratometer, the image pattern can be a dotted image pattern or also be designed as a ring....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/107A61B3/14A61B3/18
CPCA61B3/107
Inventor A·施泰因穆勒
Owner OCULUS OPTIKGERATE GMBH