CN105342611A - Visual field instrument stimulating screen structure - Google Patents
Visual field instrument stimulating screen structure Download PDFInfo
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- CN105342611A CN105342611A CN201510926775.6A CN201510926775A CN105342611A CN 105342611 A CN105342611 A CN 105342611A CN 201510926775 A CN201510926775 A CN 201510926775A CN 105342611 A CN105342611 A CN 105342611A
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- 230000004936 stimulating effect Effects 0.000 title abstract description 12
- 230000000007 visual effect Effects 0.000 title abstract description 6
- 210000001508 eye Anatomy 0.000 claims abstract description 32
- 230000000638 stimulation Effects 0.000 claims description 21
- 230000004438 eyesight Effects 0.000 abstract description 26
- 210000001525 retina Anatomy 0.000 abstract description 15
- 210000005252 bulbus oculi Anatomy 0.000 abstract description 12
- 230000011218 segmentation Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 8
- 230000004300 dark adaptation Effects 0.000 description 6
- 230000004301 light adaptation Effects 0.000 description 4
- 210000004087 cornea Anatomy 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 210000003986 cell retinal photoreceptor Anatomy 0.000 description 2
- 210000000981 epithelium Anatomy 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007831 electrophysiology Effects 0.000 description 1
- 238000002001 electrophysiology Methods 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 210000000608 photoreceptor cell Anatomy 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 210000003583 retinal pigment epithelium Anatomy 0.000 description 1
- 210000003786 sclera Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/398—Electrooculography [EOG], e.g. detecting nystagmus; Electroretinography [ERG]
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- Biomedical Technology (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
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Abstract
The invention provides a visual field instrument stimulating screen structure comprising a stimulating screen body, wherein the stimulating screen body is provided with a center fixation vision point, a first fixation vision lamp, a second fixation vision lamp, a fifth fixation vision lamp, a sixth fixation vision lamp, a ninth fixation vision lamp, a tenth fixation vision lamp, a thirteenth fixation vision lamp and a fourteenth fixation vision lamp; a human eye gaze part is connected with the center fixation vision point to form a ninth straight line; and the first fixation vision lamp, the second fixation vision lamp, the fifth fixation vision lamp, the sixth fixation vision lamp, the ninth fixation vision lamp, the tenth fixation vision lamp, the thirteenth fixation vision lamp and the fourteenth fixation vision lamp are regularly arranged around the center fixation vision point. The visual field instrument stimulating screen structure provided by the invention has the advantage of simple and reasonable structure, multiple fixation vision lamps are regularly arranged on the stimulating screen, and by turning on the fixation vision lamps at different positions, the changes of the rest potential of retinas under bright and dark adaptable conditions when eyeballs rotate for different angles can be measured respectively, thereby providing multiple numerical values for reference for clinical tests, and providing helps for segmentation studies of scientific research institutions.
Description
Technical Field
The invention belongs to the technical field of visual electrophysiology, and particularly relates to a stimulation screen structure of a perimeter.
Background
Electrooculogram is a measurement of the electrostatic potential of the retina that exists between the retinal pigment epithelium and photoreceptor cells. According to the change of the resting potential of the retina under the conditions of light and dark adaptation, the photochemical reaction of photoreceptor cells and the functional condition of the outer retina can be reflected, and the physiological change of the eyeball position and the eyeball movement can also be measured. The electrical response of the retina comes from the complex neural network of the retina. The retinal photoreceptor epithelium has a positive potential, the pigment epithelium has a negative potential, and the potential difference between two layers can reach 60 mV. A positive potential may be passed forward to the cornea and a negative potential passed backward to the back of the sclera. When the eyeball turns to the medial canthus, the cornea of the positive pole is moved closer to the medial canthus and the posterior pole of the negative pole is moved closer to the outer canthus, whereas the opposite result is obtained by rotating the cornea to the outer canthus. The change of the current detected by an electrode at each of the inner and outer canthus of the subject under dark and light adaptation conditions with the rotation of the eyeball is an electrooculogram.
At present, the position arrangement of a fixation lamp on a stimulation screen of a perimeter is unreasonable, and the retina static potential measurement of human eyeballs rotating by various angles is inconvenient.
Disclosure of Invention
The invention aims to provide a visual field instrument stimulating screen structure with a simple and reasonable structure, wherein a plurality of fixation lamps are regularly arranged on the stimulating screen, and the change of the retina resting potential under the conditions of light and dark adaptation when eyeballs rotate at different angles can be respectively measured by opening the fixation lamps at different positions, so that a plurality of numerical values are provided for reference for clinical tests, and the visual field instrument stimulating screen structure also provides help for subdivision research of scientific research institutions.
The stimulation screen body is provided with a central fixation point, a first fixation lamp, a second fixation lamp, a fifth fixation lamp, a sixth fixation lamp, a ninth fixation lamp, a tenth fixation lamp, a thirteenth fixation lamp and a fourteenth fixation lamp, and the fixation position of human eyes is connected with the central fixation point to form a ninth straight line; wherein,
the first fixation lamp is connected with a human eye watching part to form a first straight line, the second fixation lamp is connected with the human eye watching part to form a second straight line, the ninth straight line, the first straight line and the second straight line are all parallel to the horizontal plane, a first included angle formed by the ninth straight line and the first straight line is 5-10 degrees, a second included angle formed by the first straight line and the second straight line is 5-10 degrees, the fifth fixation lamp and the first fixation lamp are symmetrical about the ninth straight line, and the sixth fixation lamp and the second fixation lamp are symmetrical about the ninth straight line;
the ninth fixation lamp is connected with the eye fixation position to form a fifth straight line, the tenth fixation lamp is connected with the eye fixation position to form a sixth straight line, a plane formed by the ninth straight line, the fifth straight line and the sixth straight line is vertical to the horizontal plane, a fifth included angle formed by the ninth straight line and the fifth straight line is 5-10 degrees, a sixth included angle formed by the ninth straight line and the tenth straight line is 5-10 degrees, the thirteenth fixation lamp and the ninth fixation lamp are symmetrical about the ninth straight line, and the fourteenth fixation lamp and the tenth fixation lamp are symmetrical about the ninth straight line.
When the retina static potential measuring device is used, human eyes watch the stimulating screen through the watching position of the human eyes, the vision fixing lamps at different positions are turned on, eyeballs rotate along with the turned vision fixing lamps, the change of retina static potential under the conditions of bright adaptation and dark adaptation when the eyeballs rotate at different angles can be measured respectively, a plurality of numerical values are provided for reference for clinical tests, and assistance is provided for subdivision research of scientific research institutions.
Further, the stimulation screen body further comprises a third fixation lamp, a seventh fixation lamp, an eleventh fixation lamp and a fifteenth fixation lamp; wherein,
the third fixation lamp is connected with the gaze of the human eyes to form a third straight line, the third straight line is parallel to the horizontal plane, a third included angle formed by the third straight line and the second straight line is 5-10 degrees, and the seventh fixation lamp and the third fixation lamp are symmetrical about a ninth straight line;
the eleventh fixation lamp is connected with the gaze of the human eyes to form a seventh straight line, a plane formed by the seventh straight line and the ninth straight line is vertical to the horizontal plane, a seventh included angle formed by the seventh straight line and the sixth straight line is 5-10 degrees, and the fifteenth fixation lamp and the eleventh fixation lamp are symmetrical about the ninth straight line;
further, the stimulation screen body further comprises a fourth fixation lamp, an eighth fixation lamp, a twelfth fixation lamp and a sixteenth fixation lamp; wherein,
the fourth fixation lamp is connected with the gaze of the human eyes to form a fourth straight line, the fourth straight line is parallel to the horizontal plane, a fourth included angle formed by the fourth straight line and the third straight line is 5-10 degrees, and the eighth fixation lamp and the fourth fixation lamp are symmetrical about a fifth straight line;
the twelfth fixation lamp is connected with the gaze of the human eyes to form an eighth straight line, a plane formed by the eighth straight line and the ninth straight line is perpendicular to the horizontal plane, an eighth included angle formed by the eighth straight line and the seventh straight line is 5-10 degrees, and the sixteenth fixation lamp and the twelfth fixation lamp are symmetrical about the ninth straight line.
Further, the degrees of the first included angle, the second included angle, the third included angle, the fourth included angle, the fifth included angle, the sixth included angle, the seventh included angle and the eighth included angle are the same.
Further, the degrees of the first included angle, the second included angle, the third included angle, the fourth included angle, the fifth included angle, the sixth included angle, the seventh included angle and the eighth included angle are all 7.5 degrees.
By adopting the technical scheme, the retina static potential measuring device has the advantages of simple and reasonable structure, a plurality of fixation lamps are regularly arranged on the stimulating screen, and the change of retina static potential under the conditions of light and dark adaptation when eyeballs rotate by different angles can be respectively measured by opening the fixation lamps at different positions, so that a plurality of numerical values are provided for reference for clinical tests, and the retina static potential measuring device also provides help for subdivision research of scientific research institutions.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure, 1, a first fixation lamp; 2. a second fixation lamp; 3. a third fixation lamp; 4. a fourth fixation lamp; 5. a fifth fixation lamp; 6. a sixth fixation lamp; 7. a seventh fixation lamp; 8. an eighth fixation lamp; 9. a ninth fixation lamp; 10. a tenth fixation lamp; 11. an eleventh fixation lamp; 12. a twelfth vision fixation lamp; 13. a thirteenth fixation lamp; 14. a fourteenth fixation lamp; 15. a fifteenth fixation lamp; 16. a sixteenth fixation lamp; 17. a central fixation point; 18. the stimulation screen body.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
As shown in fig. 1, the stimulation screen comprises a stimulation screen body 18, wherein the stimulation screen body 18 is provided with a central fixation point 17, a first fixation lamp 1, a second fixation lamp 2, a fifth fixation lamp 5, a sixth fixation lamp 6, a ninth fixation lamp 9, a tenth fixation lamp 10, a thirteenth fixation lamp 13 and a fourteenth fixation lamp 14, and the fixation position of human eyes is connected with the central fixation point 17 to form a ninth straight line; wherein,
the first fixation lamp 1 is connected with a human eye watching part to form a first straight line, the second fixation lamp 2 is connected with the human eye watching part to form a second straight line, the ninth straight line, the first straight line and the second straight line are all parallel to the horizontal plane, a first included angle formed by the ninth straight line and the first straight line is 5-10 degrees, a second included angle formed by the first straight line and the second straight line is 5-10 degrees, the fifth fixation lamp 5 and the first fixation lamp 1 are symmetrical about the ninth straight line, and the sixth fixation lamp 6 and the second fixation lamp 2 are symmetrical about the ninth straight line;
the ninth fixation lamp 9 is connected with the eye fixation part to form a fifth straight line, the tenth fixation lamp 10 is connected with the eye fixation part to form a sixth straight line, a plane formed by the ninth straight line, the fifth straight line and the sixth straight line is vertical to the horizontal plane, a fifth included angle formed by the ninth straight line and the fifth straight line is 5-10 degrees, a sixth included angle formed by the ninth straight line and the tenth straight line is 5-10 degrees, the thirteenth fixation lamp 13 and the ninth fixation lamp 9 are symmetrical about the ninth straight line, and the fourteenth fixation lamp 14 and the tenth fixation lamp 10 are symmetrical about the ninth straight line.
When the retina static potential measuring device is used, human eyes watch the stimulating screen through the watching position of the human eyes, the vision fixing lamps at different positions are turned on, eyeballs rotate along with the turned vision fixing lamps, the change of retina static potential under the conditions of bright adaptation and dark adaptation when the eyeballs rotate at different angles can be measured respectively, a plurality of numerical values are provided for reference for clinical tests, and assistance is provided for subdivision research of scientific research institutions.
As shown in fig. 1, the stimulation screen body 18 further includes a third fixation lamp 3, a seventh fixation lamp 7, an eleventh fixation lamp 11 and a fifteenth fixation lamp 15; wherein,
the third fixation lamp 3 is connected with the gaze of the human eyes to form a third straight line, the third straight line is parallel to the horizontal plane, a third included angle formed by the third straight line and the second straight line is 5-10 degrees, and the seventh fixation lamp 7 and the third fixation lamp 3 are symmetrical about a ninth straight line;
the eleventh fixation lamp 11 is connected with the gaze of the human eyes to form a seventh straight line, a plane formed by the seventh straight line and the ninth straight line is vertical to the horizontal plane, a seventh included angle formed by the seventh straight line and the sixth straight line is 5-10 degrees, and the fifteenth fixation lamp 15 and the eleventh fixation lamp 11 are symmetrical about the ninth straight line;
as shown in fig. 1, the stimulation screen body 18 further includes a fourth fixation lamp 4, an eighth fixation lamp 8, a twelfth fixation lamp 12 and a sixteenth fixation lamp 16; wherein,
the fourth fixation lamp 4 is connected with the gaze of the human eyes to form a fourth straight line, the fourth straight line is parallel to the horizontal plane, a fourth included angle formed by the fourth straight line and the third straight line is 5-10 degrees, and the eighth fixation lamp 8 and the fourth fixation lamp 4 are symmetrical about a fifth straight line;
the twelfth fixation lamp 12 is connected with the gaze of the human eyes to form an eighth straight line, a plane formed by the eighth straight line and the ninth straight line is perpendicular to the horizontal plane, an eighth included angle formed by the eighth straight line and the seventh straight line is 5-10 degrees, and the sixteenth fixation lamp 16 and the twelfth fixation lamp 12 are symmetrical about the ninth straight line.
As a specific embodiment, the first included angle, the second included angle, the third included angle, the fourth included angle, the fifth included angle, the sixth included angle, the seventh included angle, and the eighth included angle have the same degree.
As a specific embodiment, the degrees of the first included angle, the second included angle, the third included angle, the fourth included angle, the fifth included angle, the sixth included angle, the seventh included angle, and the eighth included angle are all 7.5 degrees.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (5)
1. The stimulation screen structure of the perimeter is characterized by comprising a stimulation screen body, wherein the stimulation screen body is provided with a central fixation point, a first fixation lamp, a second fixation lamp, a fifth fixation lamp, a sixth fixation lamp, a ninth fixation lamp, a tenth fixation lamp, a thirteenth fixation lamp and a fourteenth fixation lamp, and the fixation position of human eyes is connected with the central fixation point to form a ninth straight line; wherein,
the first fixation lamp is connected with a human eye watching part to form a first straight line, the second fixation lamp is connected with the human eye watching part to form a second straight line, the ninth straight line, the first straight line and the second straight line are all parallel to the horizontal plane, a first included angle formed by the ninth straight line and the first straight line is 5-10 degrees, a second included angle formed by the first straight line and the second straight line is 5-10 degrees, the fifth fixation lamp and the first fixation lamp are symmetrical about the ninth straight line, and the sixth fixation lamp and the second fixation lamp are symmetrical about the ninth straight line;
the ninth fixation lamp is connected with the eye fixation position to form a fifth straight line, the tenth fixation lamp is connected with the eye fixation position to form a sixth straight line, a plane formed by the ninth straight line, the fifth straight line and the sixth straight line is vertical to the horizontal plane, a fifth included angle formed by the ninth straight line and the fifth straight line is 5-10 degrees, a sixth included angle formed by the ninth straight line and the tenth straight line is 5-10 degrees, the thirteenth fixation lamp and the ninth fixation lamp are symmetrical about the ninth straight line, and the fourteenth fixation lamp and the tenth fixation lamp are symmetrical about the ninth straight line.
2. The perimeter stimulation screen structure of claim 1, wherein the stimulation screen body further comprises a third fixation light, a seventh fixation light, an eleventh fixation light, and a fifteenth fixation light; wherein,
the third fixation lamp is connected with the gaze of the human eyes to form a third straight line, the third straight line is parallel to the horizontal plane, a third included angle formed by the third straight line and the second straight line is 5-10 degrees, and the seventh fixation lamp and the third fixation lamp are symmetrical about a ninth straight line;
the eleventh fixation lamp is connected with the gaze of the human eyes to form a seventh straight line, a plane formed by the seventh straight line and the ninth straight line is vertical to the horizontal plane, a seventh included angle formed by the seventh straight line and the sixth straight line is 5-10 degrees, and the fifteenth fixation lamp and the eleventh fixation lamp are symmetrical about the ninth straight line.
3. The perimeter stimulation screen structure of claim 2, wherein the stimulation screen body further comprises a fourth fixation lamp, an eighth fixation lamp, a twelfth fixation lamp, and a sixteenth fixation lamp; wherein,
the fourth fixation lamp is connected with the gaze of the human eyes to form a fourth straight line, the fourth straight line is parallel to the horizontal plane, a fourth included angle formed by the fourth straight line and the third straight line is 5-10 degrees, and the eighth fixation lamp and the fourth fixation lamp are symmetrical about a fifth straight line;
the twelfth fixation lamp is connected with the gaze of the human eyes to form an eighth straight line, a plane formed by the eighth straight line and the ninth straight line is vertical to the horizontal plane, an eighth included angle formed by the eighth straight line and the seventh straight line is 5-10 degrees, and the sixteenth fixation lamp and the twelfth fixation lamp are symmetrical about the ninth straight line.
4. The perimeter stimulation screen structure of claim 3, wherein the first, second, third, fourth, fifth, sixth, seventh and eighth angles are the same number of degrees.
5. The perimeter stimulation screen structure of claim 4, wherein the first, second, third, fourth, fifth, sixth, seventh and eighth angles are all 7.5 degrees.
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| CN201510926775.6A CN105342611A (en) | 2015-12-14 | 2015-12-14 | Visual field instrument stimulating screen structure |
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| CN201510926775.6A CN105342611A (en) | 2015-12-14 | 2015-12-14 | Visual field instrument stimulating screen structure |
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2015
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| GB1114672A (en) * | 1963-11-20 | 1968-05-22 | Nat Res Dev | Method and apparatus for testing and recording reactions to stimuli |
| US4685784A (en) * | 1984-09-19 | 1987-08-11 | Oculus Optikgeraete Gmbh | Method for controlling fixation of a patient's eye during perimeter measurements |
| JPS61144516A (en) * | 1984-12-18 | 1986-07-02 | Mochida Pharmaceut Co Ltd | Visual field meter |
| JPH0866359A (en) * | 1994-08-29 | 1996-03-12 | Topcon Corp | Projection perimeter |
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