CN206026294U - Wear -type field of vision detector - Google Patents
Wear -type field of vision detector Download PDFInfo
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- CN206026294U CN206026294U CN201620726925.9U CN201620726925U CN206026294U CN 206026294 U CN206026294 U CN 206026294U CN 201620726925 U CN201620726925 U CN 201620726925U CN 206026294 U CN206026294 U CN 206026294U
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Abstract
The utility model provides a wear -type field of vision detector which characterized in that: including the convex lens of shell, control chip, closed eye -shade, two aspheric surface designs, be provided with the pupil distance adjusting driving lever in the shell lower part for the interval of adjusting the convex lens of two aspheric surface designs is with the adaptation person of being examined interpupillary distance, at other eye movement monitor and the infrared camera device who is connected with control chip that be provided with of the convex lens of every aspheric surface design for monitoring eye movement, at the preceding LED display screen that is provided with of the convex lens of two aspheric surface designs for provide the amazing of the required different position of bias light, point of fixation and checking process in the checking process, different luminance, with the detection person of the being examined field of vision, perception feedback ware, it is connected with control chip through the wire for the perception result of the feedback person of being examined bright spot on to the LED display screen. The utility model discloses the error of the field of vision testing result that leads to because of eye movement is reduced in the monitoring person's of being examined that can the be quick field of vision for to large tracts of land crowd's field of vision examination or to the patient who has field of vision harm illness carry on the family follow up a case by regular visits to very convenient.
Description
Technical field
This utility model is related to technical field of medical detection, more particularly to a kind of ophthalmology and department of neurology check device.
Background technology
When the visual field (visual field) refers to that eye gaze a target it is observed that whole area of space.Depending on
Wild inspection is the detection meanss of a kind of conventional ophthalmology and department of neurology, to find the caused defect of visual field of disease institute, with weight
Big diagnosis and the value of therapeutic effect assessment.It is currently known many diseases such as glaucoma, retinal diseasess, central nervous system
System tumor, nervus centraliss ischemia etc. can cause disappearance or the change in the mankind visual field.
Perimetry means the most frequently used on clinical medicine are computer perioptometry at present.Its theoretical foundation is threshold value
Algoscopy, i.e., the sensitivity difference of the detection range interior focusing according to needed for person under inspection is judging the size and defect feelings of field range
Condition.Concrete operation method is：1. fixed background luminance is adjusted in testing equipment；2. cover patient simple eye, detect and do not cover
Eye；3. fix person under inspection's head；4. person under inspection is made actively to watch a fixed point attentively；5. detect that program starts, now can basis
Occurs the different stimulation point of brightness in the test scope of setting；6. thorn is actively responded by indicator after person under inspection perceives stimulation
Swash；7., after the completion of simple eye detection, masking completes the eyes for detecting and starts to detect Second eye, and detection mode is ibid；8. last root
The perimetry report of eyes is made respectively according to the response that person under inspection's bilateral eyes draw.
As described above, now widely used perimetry is a kind of subjectivity for being completely dependent on person under inspection's cooperation and reaction
Detection meanss.It is mainly reflected in：1. person under inspection is needed actively to keep fixation in whole checking process all the time, otherwise can be because of eyeball
Motion cause the skew in the visual field, and there is deviation and (may strengthen and be likely to subtract in the detection site photo threshold for causing now to occur
It is weak)；2. need person under inspection to be responded to the photostimulation of different loci in detection process, can otherwise cause audit report to occur
False positive or false-negative result.
In addition, current visual field detecting instrument is more heavy, it is more difficult to which mobile, result in person under inspection needs during being examined
Passive position is taken, detection comfortableness is poor.For ensureing being smoothed out for visual field detection, need inspection chamber in detection process
In the state of dark, while causing inconvenience to device operator.
Utility model content
The purpose of this utility model is to provide a kind of wear-type perimetry instrument, the master occurred in solving current perimetry
The property seen composition is on the high side and checking process in the person under inspection that occurs and operator uncomfortable problem.
What the purpose of this utility model was realized in：A kind of wear-type perimetry instrument, it is characterised in that：Outside one
Shell, for installing following all parts；
One control chip, sending and receiving for information；
One closed eyeshield, is connected with one end of shell；For described somascope is pressed close to human body face, detection is made not
Disturbed by ambient, and checking process is not affected by person under inspection's position；
The convex lenss of two aspheric designs, are arranged on before closed eyeshield, and outer casing underpart is provided with interpupillary distance regulation
Driving lever, for adjusting the spacing of the convex lenss of two aspheric designs to adapt to person under inspection's interpupillary distance；
The dynamic monitor of the eye being connected with control chip and infrared photography is provided with by the convex lenss of each aspheric design
Device, for detecting ocular movement；
LED display is provided with before the convex lenss of two aspheric designs, to provide the background in checking process
Different azimuth, the stimulation point of different brightness needed for light, point of fixation and checking process, to detect the person under inspection visual field；
One perceptible feedback device, it is connected with control chip by wire, for feeding back person under inspection to bright spot on LED display
Sensing results.
The purpose of this utility model can also be achieved in that：LED display with the distance of the convex lenss of aspheric design is
2-4cm。
Described control chip, carries out processing record data and showing by wired or wireless way and terminal.
Described control chip be set in meet 5 ° of ocular movement deflection central authorities point of fixation ＜ when, LED display starts
There is different angles, the bright spot of different brightness, the appearance of this bright spot centered on central point of fixation, with the test scope that sets as
Border occurs at random in diverse location, and its brightness size also manifests at random；In ocular movement deflection central authorities 5 ° of point of fixation ＞ when,
Bright spot on LED display stops showing, while perceptible feedback device sends buzzing or vibration prompting to person under inspection.
The beneficial effects of the utility model are：Regarding for person under inspection is monitored quickly by by wearing portable equipment
Open country, and can be reduced because of ocular movement and the error of caused visual field testing result by the dynamic monitoring device of eye so as to big face
The visual field examination of product crowd or to carry out home follow-up to the patient with visual field damage illness very convenient.
Description of the drawings
Fig. 1 is the method flow schematic diagram that this utility model checks the visual field
Structural representations of the Fig. 2 for this utility model wear-type perimetry instrument
Right views (profile) of the Fig. 3 for Fig. 2
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated.
Label component names shown in Fig. 2, Fig. 3 is：1st, closed eyeshield；2nd, LED display；3rd, the dynamic monitor of eye；4 is non-
The convex lenss of spherical design；5th, infrared eye；6th, interpupillary distance adjusts driving lever；7th, perceptible feedback device；8th, shell；Separately：Control core
Piece is marked not in the drawings.
This utility model is a kind of wear-type perimetry instrument worn by person under inspection, including a shell 8, under installation
State all parts：The convex lenss 4, interpupillary distance of closed eyeshield 1, aspheric design adjust the dynamic monitor 3, infrared photography of driving lever 6, eye
Device 5, LED display 2, perceptible feedback device 7 and control chip.Closed eyeshield is connected to the position that equipment presses close to face,
Convex lenss are located at the preocular with linkage driving lever of person under inspection, and can adjust driving lever by interpupillary distance moves horizontally two convex lenss
So as to be located at the dead ahead of person under inspection, reach can without or less use eyes adjust may be viewed by front LED show
Display screen and it is undistorted for the purpose of, the dynamic monitor of eye and infrared eye are arranged by each convex lens respectively, to detect eye
The motion of ball, LED display are located at side about 4cm at the moment, can make eyes without tune by the convex lenss 4 of aforementioned aspheric design
Section or less regulation and it is distortionless observe LED display, and make LED display full of most of visual field, perceptible feedback
Device is the button of control chip on a connected with outer casing.
Wear closed eyeshield 1 and adjusting after interpupillary distance adjusts driving lever 6 to enable the convex lenss 4 of aspheric design be located at
The eyes dead ahead of person under inspection and do not disturbed by ambient, now the dynamic monitor of eye and infrared eye are started working, and lead to
The eyes that the labelling to ocular bioavailability feature such as iris, limbus of corneae is crossed to detect person under inspection are moved, and are meeting ocular movement deflection
In the case of 5 ° of ＜, preocular LED display starts to occur different angles, the bright spot of different brightness to stimulate, and this bright spot goes out
Now can occur as border at random centered on point of fixation, with the test scope for setting, its brightness also manifests at random, it is therefore intended that survey
In examination fixed range person under inspection's eye coverage to the sensitivity of light to simulate under person under inspection's actual state eyes to difference
The sensitivity of position light, when person under inspection can perceive the stimulation of luminous point, is fed back by perceptible feedback device, will feedback
Learn the visual field of the person under inspection either with or without impaired by collecting.
A kind of wear-type perimetry instrument of this utility model, referring to Fig. 2, Fig. 3, including following all parts：
1) can fit the closed eyeshield 1 of human face's profile, it makes detection not disturbed by ambient, and can make to check
Journey is not affected by person under inspection's position.
2) LED display 2, to provide the difference needed for the bias light in checking process, point of fixation and checking process
The stimulation point in orientation, different brightness.
3) the dynamic monitor 3 of eye, for observe check detection carry out during eye emotionally condition, analyze eyeball with fixation point
Deviation situation, whether the appearance of linkage detection process moderate stimulation point.
4) correspondence eyes position is configured with the convex lenss 4 of aspheric design, and purpose is can be without by lens person under inspection
Or aforesaid LED display 2 can be observed using little regulation.Can be simultaneously reached the distortion of control visual field, show LED
The screen effect full of the visual field as far as possible.
5) infrared eye 5, can be by the image transmitting of person under inspection's participation detection process out, for the operator for detecting
Observation and guides person under inspection to be correctly completed checking process.
6) interpupillary distance adjusts driving lever 6 lens to be adjusted to the dead ahead of eyes.
7) perceptible feedback device 7, can be recorded all perceiving by touching in person under inspection's checking process by perceptible feedback device
Photostimulation.
8) shell 1, for installing above-mentioned all parts.
Control chip, sending and receiving and analytical calculation may be coupled to terminal and show for information；
Wear-type perimetry instrument is used for the method for checking the visual field, comprises the following steps：
1) user takes sitting posture or other comfortable positions, wear-type perimetry instrument is placed at the moment, is made closed
Formula eyeshield 1 presses close to face fixation；
2) turn on the power, LED display 2 is lighted, a horizontal line of regard occur in eyes dead ahead；Person under inspection's foundation should
Horizontal line adjustment interpupillary distance adjust driving lever 6, move horizontally the convex lenss 4 of aspheric design, and make horizontal line of regard just at
The dead ahead of eyes；
3) start the visual field test of eyes：The LED display for not carried out testing opposite side is closed, and tests side
LED display is lighted, and occurs center point of fixation on screen, if person under inspection feels that the point of fixation should not be further in centre
Adjustment closed eyeshield 1 and interpupillary distance adjust driving lever 6 makes point of fixation placed in the middle；
4), after above-mentioned adjustment is ready, person under inspection keeps to dead ahead watching and pressing perception ultramagnifier 7 attentively, now will be with eyeball
Fixation position be set to baseline and trigger the dynamic monitor 3 of eye and infrared eye 5, proceed by the dynamic detection of lasting eye；Control
Chip be set in meet 5 ° of ocular movement deflection central authorities point of fixation ＜ when, LED display (2) starts to occur different angles, no
With the bright spot of brightness, the appearance of this bright spot centered on central point of fixation, with the test scope for setting be border in diverse location
Random to occur, its brightness size also manifests at random；In ocular movement deflection central authorities 5 ° of point of fixation ＞ when, on LED display (2)
Bright spot stop show, while perceptible feedback device (7) sends buzzing or vibration prompting to person under inspection；
5) ultramagnifier 7 of pressing perception at once, the control chip when bright spot is flashed at the moment perceived according to oneself by person under inspection
Recorded immediately, the process is persistently carried out, shown until the test point being set in all regions completes stopping bright spot；
6) test process terminates rear control chip carries out data by the feedback of the appearance situation of binding test point and person under inspection
Collect, obtain the light sensitivity of each bright spot of the person under inspection to showing in the test scope；
7) the incoming terminal of light sensitive degrees of data by person under inspection to each bright spot, control Healthy People visual field standard
Data, analysis and evaluation go out whether the visual field of person under inspection receives damage；
8) test-based examination carried out to another eyes according to above-mentioned steps, provides perimetry report.
Operation principle and using method：
This utility model wear-type perimetry instrument enables LED display to cover the major part of person under inspection by convex lenss
The visual field, and more adjusting forces are employed so as to asthenopia will not be produced without person under inspection, the convex lenss of aspheric design can also
Make the peripheral visual field of person under inspection that significantly distortion will not occur so that the measurement of peripheral visual field is also more accurate.Using
Journey mid-infrared camera head and the dynamic monitor of eye can be with the ocular movement situations of real-time tracking person under inspection, when person under inspection's eyeball deviates
Stimulation bright spot when point of fixation on dead ahead LED display is more than 5 ° on LED display no longer occurs, until eyes are returned to
Stimulate when point of fixation is less than 5 ° and occur again, can so prevent because of perimetry error caused by person under inspection's ocular movement.When
When person under inspection can perceive stimulation point at the moment, by pressing the record stimulated by the perceptible feedback device in handss, finally collect
The stimulation point record of all collections can assess the sensitivity of the field range and different range of person under inspection to light.
Specifically used method is as follows：Person under inspection takes sitting posture or other comfortable positions, this device is placed at the moment, is made
Closed eyeshield 1 contacts to face and fixed；Now LED display 2 is lighted, and a horizontal line occurs in eyes dead ahead；Receive
Inspection person adjusts driving lever 6 according to the horizontal line adjustment interpupillary distance for occurring at the moment, moves horizontally the convex lenss 4 of aspheric design, and makes
Dead ahead of the line of regard just at eyes；Start side by after wearing closed eyeshield, the end-of-job of adjustment convex lenss
The visual field test of eyes, the screen for now not carrying out testing side are closed, and the screen for testing side is lighted, and is just occurred on screen
Middle point of fixation, if the subject perception point of fixation can not further adjust closed eyeshield 1 in centre and interpupillary distance is adjusted
Driving lever 6 makes point of fixation placed in the middle, and the ready rear person under inspection of all adjustment keeps dead ahead to watch attentively and press perception ultramagnifier 7, now will
Baseline is set to the fixation position of eyeball and the dynamic monitor 3 of eye is triggered and infrared eye 5 proceeds by the dynamic monitoring of lasting eye,
When eyeball fixes position is within 5 ° of each orientation of baseline, can there is test bright spot, the appearance meeting of this bright spot in LED display
Occur as border at random centered on point of fixation, with the test scope for setting, its brightness random display, it is therefore intended that test is fixed
In the range of sensitivity of person under inspection's eye coverage to light, when person under inspection can perceive when bright spot at the moment is flashed pressing perceive it is anti-
Feedback device 7 is recorded, and the process is persistently carried out, and the test point in all regions completes test；In to respective range
Test program terminate after, the feedback of the appearance situation of binding test point and person under inspection carries out data collection, you can obtain the survey
The light sensitivity of each point in the range of examination, and may be used to assess whether the person under inspection visual field receives damage.The visual field of another branch hole is surveyed
Method for testing is identical.
Claims (5)
1. a kind of wear-type perimetry instrument, it is characterised in that：Including a shell (8), for installing following all parts；
One control chip, sending and receiving and analytical calculation for information；
One closed eyeshield (1), is connected with one end of shell；For described somascope is pressed close to human body face, detection is made not
Disturbed by ambient, and checking process is not affected by person under inspection's position；
The convex lenss (4) of two aspheric designs, are arranged on before closed eyeshield, outer casing underpart is provided with interpupillary distance regulation and dials
Bar (6), for adjusting the spacing of the convex lenss of two aspheric designs to adapt to person under inspection's interpupillary distance；
The dynamic monitor (3) of the eye being connected with control chip and infrared photography dress is provided with by the convex lenss of each aspheric design
(5) are put, for monitoring ocular movement；
LED display (2) is provided with before the convex lenss of two aspheric designs, to provide the background in checking process
Different azimuth, the stimulation point of different brightness needed for light, point of fixation and checking process, to detect the person under inspection visual field；
One perceptible feedback device (7), it is connected with control chip by wire, for feeding back person under inspection to bright spot on LED display
Sensing results.
2. wear-type perimetry instrument according to claim 1, it is characterised in that：LED display (2) and aspheric design
Convex lenss (4) distance be 2-4cm.
3. wear-type perimetry instrument according to claim 1, it is characterised in that：Described control chip, by wired
Or wireless mode carries out processing record data and showing with terminal.
4. wear-type perimetry instrument according to claim 1 and 2, it is characterised in that：Described control chip is set in
Meet 5 ° of ocular movement deflection central authorities point of fixation ＜ when, LED display (2) start to occur different angles, different brightness it is bright
Point, the appearance of this bright spot occur as border at random in diverse location centered on central point of fixation, with the test scope for setting, its
Brightness size also manifests at random；In ocular movement deflection central authorities 5 ° of point of fixation ＞ when, the bright spot on LED display (2) stops
Show, while perceptible feedback device (7) sends buzzing or vibration prompting to person under inspection.
5. wear-type perimetry instrument according to claim 3, it is characterised in that：Described control chip is set in and meets
5 ° of ocular movement deflection central authorities point of fixation ＜ when, LED display (2) starts different angles, the bright spot of different brightness occur, this
The appearance of bright spot occurs as border at random in diverse location centered on central point of fixation, with the test scope for setting, its brightness
Size also manifests at random；In ocular movement deflection central authorities 5 ° of point of fixation ＞ when, the bright spot on LED display (2) stops showing,
Perceptible feedback device (7) sends buzzing or vibration prompting to person under inspection simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726925.9U CN206026294U (en) | 2016-07-12 | 2016-07-12 | Wear -type field of vision detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726925.9U CN206026294U (en) | 2016-07-12 | 2016-07-12 | Wear -type field of vision detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206026294U true CN206026294U (en) | 2017-03-22 |
Family
ID=58310616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620726925.9U Withdrawn - After Issue CN206026294U (en) | 2016-07-12 | 2016-07-12 | Wear -type field of vision detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN206026294U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192108A1 (en) * | 2018-04-03 | 2019-10-10 | 林臣 | Perimeter |
| CN113491502A (en) * | 2020-04-03 | 2021-10-12 | 北京七鑫易维信息技术有限公司 | Eyeball tracking calibration inspection method, device, equipment and storage medium |
-
2016
- 2016-07-12 CN CN201620726925.9U patent/CN206026294U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192108A1 (en) * | 2018-04-03 | 2019-10-10 | 林臣 | Perimeter |
| JP2020521620A (en) * | 2018-04-03 | 2020-07-27 | 林 臣LIN, Chen | Perimeter |
| US20210059516A1 (en) * | 2018-04-03 | 2021-03-04 | Chen Lin | Perimeter |
| US11737664B2 (en) * | 2018-04-03 | 2023-08-29 | Chen Lin | Perimeter |
| CN113491502A (en) * | 2020-04-03 | 2021-10-12 | 北京七鑫易维信息技术有限公司 | Eyeball tracking calibration inspection method, device, equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170322 Effective date of abandoning: 20171103 |
|
| AV01 | Patent right actively abandoned |