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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- straight line
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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]
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 Visual System Electrophysiology Technique field, particularly a kind of visual field instrument stimulates screen structure.
Background technology
Electro-oculogram measures the retina electrostatic potential existed between retinal pigment epithelium and photoreceptor cell.According to the change of retina rest potential under light and dark adaptation condition, the photochemical reaction of photoreceptor cell and epiretinal function status can be reflected, also can be used for measuring eyeball position and oculomotor physiological change.Amphiblestroid electricity reaction is from baroque retina neural reticular tissue.Retinal photoreceptor epithelium is positive potential, and pigment epithelium direction is nagative potential, and two interlayer potential differences can reach 60mV.Positive potential can to forwarding to cornea, and nagative potential passes to after sclera backward.When eyeball turns to endocanthion angle, the cornea of positive pole shifts near the nearly angle of eye lateral of rear Ghandler motion of endocanthion angle and negative pole, otherwise just obtains contrary result to angle of eye lateral rotation.Changing with the rotation of eyeball at the inside and outside corner of the eyes angle of the examinee electric current respectively put detected by an electrode under dark, light adaptation condition is exactly electro-oculogram.
At present, visual field instrument stimulates the location arrangements of the upper fixation lamp of screen unreasonable, is not easy to measure the retina rest potential of people's Rotation of eyeball multiple angles.
Summary of the invention
A kind of simple and reasonable visual field instrument is the object of the present invention is to provide to stimulate screen structure, regular for multiple fixation lamp being located at is stimulated screen, by turning on the fixation lamp of diverse location, the change of retina retina rest potential under light and dark adaptation condition when can measure Rotation of eyeball different angles respectively, for clinical trial, to provide multiple numerical value for reference, also for the segmentation research of scientific research institutions provides help.
The object of the invention is by such technical scheme realize, it comprises stimulates screen body, described stimulation screen body is provided with central fixation point, the first fixation lamp, the second fixation lamp, the 5th fixation lamp, the 6th fixation lamp, the 9th fixation lamp, the tenth fixation lamp, the 13 fixation lamp and the 14 fixation lamp, and people's eye fixation place and central fixation point connect into the 9th straight line; Wherein,
Described first fixation lamp and people's eye fixation place connect into the first straight line, described second fixation lamp and people's eye fixation place connect into the second straight line, described 9th straight line, the first straight line and the second straight line are all and plane-parallel, described 9th straight line becomes the first angle to be 5-10 to spend with the first straight line, described first straight line becomes the second angle to be 5-10 to spend with the second straight line, described 5th fixation lamp and the first fixation lamp are about the 9th straight line symmetry, and described 6th fixation lamp and the second fixation lamp are about the 9th straight line symmetry;
Described 9th fixation lamp and people's eye fixation place connect into the 5th straight line, described tenth fixation lamp and people's eye fixation place connect into the 6th straight line, described 9th straight line, the 5th straight line and the 6th straight line formed plane and horizontal plane, described 9th straight line becomes the 5th angle to be 5-10 to spend with the 5th straight line, described 9th straight line becomes the 6th angle to be 5-10 to spend with the tenth straight line, described 13 fixation lamp and the 9th fixation lamp are about the 9th straight line symmetry, and described 14 fixation lamp and the tenth fixation lamp are about the 9th straight line symmetry.
During use, human eye is watched attentively by people's eye fixation place stimulates screen, turn on the fixation lamp of diverse location, eyeball is followed the fixation lamp lighted and is rotated, the change of retina retina rest potential under light and dark adaptation condition when can measure Rotation of eyeball different angles respectively, for clinical trial, to provide multiple numerical value for reference, also for the segmentation research of scientific research institutions provides help.
Further, described stimulation screen body also comprises the 3rd fixation lamp, the 7th fixation lamp, the 11 fixation lamp and the 15 fixation lamp; Wherein,
Described 3rd fixation lamp and people's eye fixation place connect into the 3rd straight line, described 3rd straight line and plane-parallel, and described 3rd straight line becomes the 3rd angle to be 5-10 to spend with the second straight line, described 7th fixation lamp and the 3rd fixation lamp symmetrical about the 9th straight line;
Described 11 fixation lamp and people's eye fixation place connect into the 7th straight line, described 7th straight line and the 9th straight line formed plane and horizontal plane, described 7th straight line becomes the 7th angle to be 5-10 to spend with the 6th straight line, described 15 fixation lamp and the 11 fixation lamp symmetrical about the 9th straight line;
Further, described stimulation screen body also comprises the 4th fixation lamp, the 8th fixation lamp, the 12 fixation lamp and the 16 fixation lamp; Wherein,
Described 4th fixation lamp and people's eye fixation place connect into the 4th straight line, described 4th straight line and plane-parallel, and described 4th straight line becomes the 4th angle to be 5-10 to spend with the 3rd straight line, described 8th fixation lamp and the 4th fixation lamp symmetrical about the 5th straight line;
Described 12 fixation lamp and people's eye fixation place connect into the 8th straight line, described 8th straight line and the 9th straight line formed plane and horizontal plane, described 8th straight line becomes the 8th angle to be 5-10 to spend with the 7th straight line, described 16 fixation lamp and the 12 fixation lamp symmetrical about the 9th straight line.
Further, described first angle, the second angle, the 3rd angle, the 4th angle, the 5th angle, the 6th angle, the 7th angle are identical with the number of degrees of the 8th angle.
Further, the number of degrees of described first angle, the second angle, the 3rd angle, the 4th angle, the 5th angle, the 6th angle, the 7th angle and the 8th angle are 7.5 degree.
Owing to have employed technique scheme, the present invention has simple and reasonable advantage, regular for multiple fixation lamp being located at is stimulated screen by it, by turning on the fixation lamp of diverse location, the change of retina retina rest potential under light and dark adaptation condition when can measure Rotation of eyeball different angles respectively, for clinical trial, to provide multiple numerical value for reference, also for the segmentation research of scientific research institutions provides help.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, the 1, first fixation lamp; 2, the second fixation lamp; 3, the 3rd fixation lamp; 4, the 4th fixation lamp; 5, the 5th fixation lamp; 6, the 6th fixation lamp; 7, the 7th fixation lamp; 8, the 8th fixation lamp; 9, the 9th fixation lamp; 10, the tenth fixation lamp; 11, the 11 fixation lamp; 12, the 12 fixation lamp; 13, the 13 fixation lamp; 14, the 14 fixation lamp; 15, the 15 fixation lamp; 16, the 16 fixation lamp; 17, central fixation point; 18, screen body is stimulated.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1, the present invention includes and stimulate screen body 18, described stimulation screen body 18 is provided with central fixation point 17, first fixation lamp 1, second fixation lamp 2, the 5th fixation lamp 5, the 6th fixation lamp 6, the 9th fixation lamp 9, the tenth fixation lamp the 10, the 13 fixation lamp the 13 and the 14 fixation lamp 14, and people's eye fixation place and central fixation point 17 connect into the 9th straight line; Wherein,
Described first fixation lamp 1 connects into the first straight line with people's eye fixation place, described second fixation lamp 2 connects into the second straight line with people's eye fixation place, described 9th straight line, the first straight line and the second straight line are all and plane-parallel, described 9th straight line becomes the first angle to be 5-10 to spend with the first straight line, described first straight line becomes the second angle to be 5-10 to spend with the second straight line, described 5th fixation lamp 5 and the first fixation lamp 1 are about the 9th straight line symmetry, and described 6th fixation lamp 6 and the second fixation lamp 2 are about the 9th straight line symmetry;
Described 9th fixation lamp 9 connects into the 5th straight line with people's eye fixation place, described tenth fixation lamp 10 connects into the 6th straight line with people's eye fixation place, described 9th straight line, the 5th straight line and the 6th straight line formed plane and horizontal plane, described 9th straight line becomes the 5th angle to be 5-10 to spend with the 5th straight line, described 9th straight line becomes the 6th angle to be 5-10 to spend with the tenth straight line, described 13 fixation lamp 13 and the 9th fixation lamp 9 are about the 9th straight line symmetry, and described 14 fixation lamp 14 and the tenth fixation lamp 10 are about the 9th straight line symmetry.
During use, human eye is watched attentively by people's eye fixation place stimulates screen, turn on the fixation lamp of diverse location, eyeball is followed the fixation lamp lighted and is rotated, the change of retina retina rest potential under light and dark adaptation condition when can measure Rotation of eyeball different angles respectively, for clinical trial, to provide multiple numerical value for reference, also for the segmentation research of scientific research institutions provides help.
As shown in Figure 1, described stimulation screen body 18 also comprises the 3rd fixation lamp 3, the 7th fixation lamp the 7, the 11 fixation lamp the 11 and the 15 fixation lamp 15; Wherein,
Described 3rd fixation lamp 3 connects into the 3rd straight line, described 3rd straight line and plane-parallel with people's eye fixation place, and described 3rd straight line becomes the 3rd angle to be 5-10 to spend with the second straight line, described 7th fixation lamp 7 and the 3rd fixation lamp 3 are about the 9th straight line symmetry;
Described 11 fixation lamp 11 connects into the 7th straight line with people's eye fixation place, described 7th straight line and the 9th straight line formed plane and horizontal plane, described 7th straight line becomes the 7th angle to be 5-10 degree with the 6th straight line, and described 15 fixation lamp the 15 and the 11 fixation lamp 11 is symmetrical about the 9th straight line;
As shown in Figure 1, described stimulation screen body 18 also comprises the 4th fixation lamp 4, the 8th fixation lamp the 8, the 12 fixation lamp the 12 and the 16 fixation lamp 16; Wherein,
Described 4th fixation lamp 4 connects into the 4th straight line, described 4th straight line and plane-parallel with people's eye fixation place, and described 4th straight line becomes the 4th angle to be 5-10 to spend with the 3rd straight line, described 8th fixation lamp 8 and the 4th fixation lamp 4 are about the 5th straight line symmetry;
Described 12 fixation lamp 12 connects into the 8th straight line with people's eye fixation place, described 8th straight line and the 9th straight line formed plane and horizontal plane, described 8th straight line becomes the 8th angle to be 5-10 to spend with the 7th straight line, described 16 fixation lamp the 16 and the 12 fixation lamp 12 is symmetrical about the 9th straight line.
As specific embodiment, described first angle, the second angle, the 3rd angle, the 4th angle, the 5th angle, the 6th angle, the 7th angle are identical with the number of degrees of the 8th angle.
As specific embodiment, the number of degrees of described first angle, the second angle, the 3rd angle, the 4th angle, the 5th angle, the 6th angle, the 7th angle and the 8th angle are 7.5 degree.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to do, is directly or indirectly used in the technical field that other are relevant, all in like manner within scope of patent protection of the present invention.
Claims (5)
1. visual field instrument stimulates screen structure, it is characterized in that, comprise and stimulate screen body, described stimulation screen body is provided with central fixation point, the first fixation lamp, the second fixation lamp, the 5th fixation lamp, the 6th fixation lamp, the 9th fixation lamp, the tenth fixation lamp, the 13 fixation lamp and the 14 fixation lamp, and people's eye fixation place and central fixation point connect into the 9th straight line; Wherein,
Described first fixation lamp and people's eye fixation place connect into the first straight line, described second fixation lamp and people's eye fixation place connect into the second straight line, described 9th straight line, the first straight line and the second straight line are all and plane-parallel, described 9th straight line becomes the first angle to be 5-10 degree with the first straight line, described first straight line becomes the second angle to be 5-10 degree with the second straight line, described 5th fixation lamp and the first fixation lamp are about the 9th straight line symmetry, and described 6th fixation lamp and the second fixation lamp are about the 9th straight line symmetry;
Described 9th fixation lamp and people's eye fixation place connect into the 5th straight line, described tenth fixation lamp and people's eye fixation place connect into the 6th straight line, described 9th straight line, the 5th straight line and the 6th straight line formed plane and horizontal plane, described 9th straight line becomes the 5th angle to be 5-10 degree with the 5th straight line, described 9th straight line becomes the 6th angle to be 5-10 degree with the tenth straight line, described 13 fixation lamp and the 9th fixation lamp are about the 9th straight line symmetry, and described 14 fixation lamp and the tenth fixation lamp are about the 9th straight line symmetry.
2. visual field instrument as claimed in claim 1 stimulates screen structure, it is characterized in that, described stimulation screen body also comprises the 3rd fixation lamp, the 7th fixation lamp, the 11 fixation lamp and the 15 fixation lamp; Wherein,
Described 3rd fixation lamp and people's eye fixation place connect into the 3rd straight line, described 3rd straight line and plane-parallel, and described 3rd straight line becomes the 3rd angle to be 5-10 degree with the second straight line, and described 7th fixation lamp and the 3rd fixation lamp are about the 9th straight line symmetry;
Described 11 fixation lamp and people's eye fixation place connect into the 7th straight line, described 7th straight line and the 9th straight line formed plane and horizontal plane, described 7th straight line becomes the 7th angle to be 5-10 degree with the 6th straight line, and described 15 fixation lamp and the 11 fixation lamp are about the 9th straight line symmetry.
3. visual field instrument as claimed in claim 2 stimulates screen structure, it is characterized in that, described stimulation screen body also comprises the 4th fixation lamp, the 8th fixation lamp, the 12 fixation lamp and the 16 fixation lamp; Wherein,
Described 4th fixation lamp and people's eye fixation place connect into the 4th straight line, described 4th straight line and plane-parallel, and described 4th straight line becomes the 4th angle to be 5-10 degree with the 3rd straight line, and described 8th fixation lamp and the 4th fixation lamp are about the 5th straight line symmetry;
Described 12 fixation lamp and people's eye fixation place connect into the 8th straight line, described 8th straight line and the 9th straight line formed plane and horizontal plane, described 8th straight line becomes the 8th angle to be 5-10 degree with the 7th straight line, and described 16 fixation lamp and the 12 fixation lamp are about the 9th straight line symmetry.
4. visual field instrument as claimed in claim 3 stimulates screen structure, it is characterized in that, described first angle, the second angle, the 3rd angle, the 4th angle, the 5th angle, the 6th angle, the 7th angle are identical with the number of degrees of the 8th angle.
5. visual field instrument as claimed in claim 4 stimulates screen structure, it is characterized in that, the number of degrees of described first angle, the second angle, the 3rd angle, the 4th angle, the 5th angle, the 6th angle, the 7th angle and the 8th angle are 7.5 degree.
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