IP Library › Granted Patent US 7,641,339
Granted Patent B2
US 7,641,339 · App. 11/882,236 · Granted Jan 5, 2010

Ophthalmologic information processing apparatus and ophthalmologic examination apparatus

Assignee: Kabushiki Kaisha Topcon
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Quick Facts
Patent No.
US 7,641,339
App. No.
11/882,236
Granted
Jan 5, 2010
Kind
B2
Abstract

An ophthalmologic examination apparatus 1 projects a light onto a fundus oculi, detects the reflected light thereof, and forms a 3-dimensional image that represents the morphology of a retina based on the detected results. A stimulation-position specifying part 233 specifies, in the 3-dimensional image, a plurality of stimulation positions that correspond to a plurality of stimulation points Pi in a visual-field examination. A layer-thickness measuring part 235 analyzes the 3-dimensional image to find the layer thickness of the retina at each stimulation position. In addition, a displacement calculation part 234 specifies a related position of the stimulation position. A layer-thickness measuring part 235 finds the layer thickness of the retina at the related position.

Claims (62)

1. An opthalmologic information-processing apparatus comprising:

an accepting part configured to accent a 3-dimensional image representing a morphology of a retina;

a specifying part configured to specify, in the 3-dimensional image, a plurality of positions corresponding to a plurality of stimulation points in a visual-field examination; and

an analyzing part configured to analyze the 3-dimensional image and find a layer thickness of the retina at each of the plurality of positions,

wherein the specifying part specifies, for each of the plurality of positions, a new position related to the position,

wherein the analyzing part analyzes the 3-dimensional image and finds the layer thickness of the retina at the new position,

wherein the new position is a position where a ganglion cell, which receives signals from a cone existing at the position, exists,

wherein the specifying part comprises a storing part configured to previously store association information that associates a position of a cone and a position of a ganglion cell, and

wherein the specifying part refers to the association information, for each of the plurality of positions, and finds the position of the ganglion cell corresponding to the position of the cone, as the new position.

2. An opthalmologic information-processing apparatus comprising:

an accepting part configured to accept a 3-dimensional image representing a morphology of a retina;

a designating part configured to designate a position in the 3-dimensional image;

a specifying part configured to specify a new position related to the designated position; and

an analyzing part configured to analyze the 3-dimensional image and find a layer thickness of the retina at the new position,

wherein the new position is a position where ganglion cell, which receives signals from cone existing at the designated position, exists,

wherein the specifying part comprises a storing part configured to previously store association information that associates a position of a cone and a position of a ganglion cell, and

wherein the specifying part refers to the association information, and finds the position of the ganglion cell corresponding to the designated position, as the new position.

3. An opthalmologic information-processing apparatus comprising:

an accepting part configured to accept a 3-dimensional image representing a morphology of a retina;

a specifying part configured to specify, in the 3-dimensional image, a plurality of positions corresponding to a plurality of stimulation points in a visual-field examination; and

an analyzing part configured to analyze the 3-dimensional image and find a layer thickness of the retina at each of the plurality of positions,

wherein the specifying part sets, for each of the plurality of positions, an image region including the position, and

wherein the analyzing part finds, for the each position, the layer thickness at two or more positions in the image region and finds the layer thickness of the retina at the each position based on the layer thickness at the two or more positions.

4. The opthalmologic information-processing apparatus according to claim 3 , wherein the analyzing part finds an average value of the layer thickness at the two or more positions.

5. An opthalmologic information-processing apparatus comprising:

an accepting part configured to accept a 3-dimensional image representing a morphology of a retina;

a specifying part configured to specify, in the 3-dimensional image, a plurality of positions corresponding to a plurality of stimulation points in a visual-field examination; and

an analyzing part configured to analyze the 3-dimensional image and find a layer thickness of the retina at each of the plurality of positions,

wherein the specifying part specifies, for each of the plurality of positions, a new position related to the position,

wherein the analyzing part analyzes the 3-dimensional image and finds the layer thickness of the retina at the new position,

wherein the specifying part sets an image region including the new position; and

wherein the analyzing part finds the layer thickness at two or more positions in the image region, and finds the layer thickness of the retina at the new position based on the layer thickness at the two or more positions.

6. The opthalmologic information-processing apparatus according to claim 5 , wherein the analyzing part finds an average value of the layer thickness at the two or more positions.

7. An opthalmologic information-processing apparatus comprising:

an accepting part configured to accent a 3-dimensional image representing a morphology of a retina;

a designating part configured to designate a position in the 3-dimensional image;

a specifying part configured to specify a new position related to the designated position; and

an analyzing part configured to analyze the 3-dimensional image and find a layer thickness of the retina at the new position,

wherein the specifying part sets an image region including the new position, and

wherein the analyzing part finds the layer thickness at two or more positions in the image region, and finds the layer thickness of the retina at the new position based on the layer thickness at the two or more positions.

8. The opthalmologic information-processing apparatus according to claim 7 , wherein the analyzing part finds an average value of the layer thickness at the two or more positions.

9. An opthalmologic information-processing apparatus comprising:

an accepting part configured to accent a 3-dimensional image representing a morphology of a retina;

a specifying part configured to specify, in the 3-dimensional image, a plurality of positions corresponding to a plurality of stimulation points in a visual-field examination; and

an analyzing part configured to analyze the 3-dimensional image and find a layer thickness of the retina at each of the plurality of positions,

wherein, the accepting part accepts examination results of a visual-field examination,

wherein the analyzing part comprises a comparing part configured to compare the layer thickness of the retina and the examination results, and

wherein an output part configured to output the comparison results is provided.

10. An opthalmologic information-processing apparatus comprising:

an accepting part configured to accept a 3-dimensional image representing a morphology of a retina;

a designating part configured to designate a position in the 3-dimensional image;

a specifying part configured to specify a new position related to the designated position; and

an analyzing part configured to analyze the 3-dimensional image and find a layer thickness of the retina at the new position,

wherein the accepting part accepts examination results of a visual-field examination,

wherein the analyzing part comprises a comparing part configured to compare the layer thickness of the retina and the examination results, and

wherein an output part configured to output the comparison results is provided.

11. An opthalmologic examination apparatus comprising:

an image forming part configured to project a light onto a fundus oculi, detect the reflected light thereof, and form a 3-dimensional image representing a morphology of a retina based on the detected results;

a specifying part configured to specify, in the 3-dimensional image, a plurality of positions corresponding to a plurality of stimulation points in a visual-field examination; and

an analyzing part configured to analyze the 3-dimensional image and find a layer thickness of the retina at each of the plurality of positions.

12. The opthalmologic examination apparatus according to claim 11 , wherein the specifying part specifies, for each of the plurality of positions, a new position related to the position, and

wherein the analyzing part analyzes the 3-dimensional image and finds the layer thickness of the retina at the new position.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 7, 2008
From: HANGAI, MASANORI; YOSHIMURA, NAGAHISA; HUANG, YIJUN; NADACHI, RYOICHI
To: KABUSHIKI KAISHA TOPCON
Reel/Frame 020515/0489 →
Continuity (1)
Related Publication 20090033870A1 · Feb 5, 2009