CN109662685A - A kind of ophthalmostatometer and its measurement method - Google Patents
A kind of ophthalmostatometer and its measurement method Download PDFInfo
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- CN109662685A CN109662685A CN201811559041.9A CN201811559041A CN109662685A CN 109662685 A CN109662685 A CN 109662685A CN 201811559041 A CN201811559041 A CN 201811559041A CN 109662685 A CN109662685 A CN 109662685A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/1005—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring distances inside the eye, e.g. thickness of the cornea
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Abstract
The present invention relates to a kind of ophthalmostatometer and its measurement method, the ophthalmostatometer includes: guide rail, left prism bracket, right prism bracket, left prism, left camera bracket, left camera, right prism, right camera bracket, right camera, control module and display module；The left prism and right prism are isosceles right triangle prism；One in the isosceles right triangle prism is equipped with scale with the perpendicular medial surface of guide rail；The left camera, the right camera and the display module are electrically connected with the control module respectively.Ophthalmostatometer of the present invention acquires the eyeball image information of measured by left and right camera, and is handled by the control module the eyeball image information, finally will test result and is shown by the display module；Ophthalmostatometer of the present invention can read measurement result automatically, human intervention is not necessarily in measurement process, measurement accuracy rate is high, and operation is convenient.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of ophthalmostatometer and its measurement method.
Background technique
Traditional ophthalmostatometer is the optical glass prism using isosceles right triangle, by corneal vertex and graduated scale
The total reflection that ruler passes through inclined-plane simultaneously is projected to prism, can be measured exophthalmos in the height of outer margo orbitalis.Isosceles right angle
Triangular prism medial surface subscript is equipped with scale, and respectively has a red line in medial surface and leading flank.When measurement, measured needs
Front is faced, staff needs to move left and right sight, so that two red lines of prism are completely coincident, reads on the inside of prism at this time
Corresponding scale on face, can obtain exophthalmos degree.
Traditional ophthalmostatometer has some disadvantages: during realizing measurement exophthalmos degree
1. complicated for operation, staff is needed to move left and right sight to find the position of reading, for the same measured,
The position of different operating personnel searching is inconsistent, causes the measurement error of each measurement data uncertain.
2. human intervention factor is more, the same staff is and different to the multiple measurement results of the same measured
Staff can have the measurement result of the same measured inconsistent；
3. measurement result can only be recorded, measurement process can not be recorded, is not easy to the examination to measurement result.
Summary of the invention
In view of this, it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of ophthalmostatometer and its surveys
Amount method.
In order to achieve the above object, the present invention adopts the following technical scheme: a kind of ophthalmostatometer, comprising:
Guide rail；
It is fixed with left prism bracket and right prism bracket respectively at the both ends of the guide rail；
It is fixed with left prism on the left prism bracket, is also equipped with left camera shooting in the lower end of the left prism bracket
Head bracket, is additionally provided with left camera on the left camera bracket, and the left camera is anti-for acquiring the left prism
The image penetrated；
It is fixed with right prism on the right prism bracket, is also equipped with right camera shooting in the lower end of the right prism bracket
Head bracket, is additionally provided with right camera on the right camera bracket, and the right camera is anti-for acquiring the right prism
The image penetrated；
Wherein, the left prism and the right prism are isosceles right triangle prism；In the isosceles right angle trigonometry
One of shape prism is equipped with scale with the perpendicular medial surface of the guide rail；
Further include: control module and display module；
The left camera, the right camera and the display module are electrically connected with the control module respectively.
Optionally, the ophthalmostatometer further include: left camera adjusting knob and right camera adjusting knob；
The left camera adjusting knob is arranged on the left camera bracket, for adjusting the left camera in institute
State the left-right position on left camera bracket；
The right camera adjusting knob is arranged on the right camera bracket, for adjusting the right camera in institute
State the left-right position on right camera bracket.
Optionally, at least one prism bracket can be described in the left prism bracket and the right prism bracket
Fixed bit is adjusted in guide rail to set.
Optionally, the display module includes: the first display screen and second display screen；
First display screen is fixed at the rear end of the left camera bracket, the second display screen fixed setting
In the rear end of the right camera bracket；
First display screen and the second display screen are electrically connected with the control module respectively；
First display screen and the second display screen are respectively used to show under the control of the control module tested
The protrusion length of the left and right eyeball of person.
Optionally, the control module includes: the first control submodule and the second control submodule；
First display screen and the left camera are electrically connected with first control submodule respectively；
The second display screen and the right camera are electrically connected with second control submodule respectively.
Optionally, it is equipped with left hold-down support on the top of the left prism bracket, is set on the top of the right prism bracket
There is right hold-down support；
The left hold-down support and the right hold-down support are used to the outer margo orbitalis of eye of fixed measured.
Optionally, one of the isosceles right triangle prism is equipped with 0- with the perpendicular medial surface of the guide rail
35 millimeters of scales, and at 18 millimeters of the side and one of the isosceles right triangle prism with the guide rail phase
Respectively it is carved with a mark line in the middle position of parallel medial surface.
Optionally, the guide rail side is equipped with 75-125 millimeters of scale, for recording between the orbital border of left and right
Distance.
The present invention also provides a kind of measurement methods of ophthalmostatometer, comprising:
Acquire the eyeball image information of measured；
The eyeball image information of the measured is handled, the protrusion length information of measured's eyeball is obtained；
The protrusion length information of measured's eyeball is shown.
Optionally, the eyeball image information to the measured is handled, and obtains the prominent length of measured's eyeball
Spend information, comprising:
Gray proces are carried out to the eyeball image information, obtain corresponding gray level image；
The gray level image is subjected to median filter process；
Image after median filter process is converted into bianry image；
The protrusion length information of measured's eyeball is identified in the bianry image.
The invention adopts the above technical scheme, the ophthalmostatometer, comprising: guide rail；In the guide rail
Both ends are fixed with left prism bracket and right prism bracket respectively；It is fixed with left prism on the left prism bracket, in institute
The lower end for stating left prism bracket is also equipped with left camera bracket, is additionally provided with left camera on the left camera bracket,
The left camera is used to acquire the image of the left prismatic reflection；It is fixed with right prism on the right prism bracket,
The lower end of the right prism bracket is also equipped with right camera bracket, is additionally provided with right camera shooting on the right camera bracket
Head, the right camera are used to acquire the image of the right prismatic reflection；Wherein, the left prism and the right prism are
Waist right angled triangle prism；It is set in a medial surface perpendicular with the guide rail of the isosceles right triangle prism
There is scale；Further include: control module and display module；The left camera, the right camera and display module difference
It is electrically connected with the control module.Ophthalmostatometer of the present invention acquires the eyeball image of measured by left and right camera
Information, and the eyeball image information is handled by the control module, it finally will test result and pass through the display
Module is shown；Ophthalmostatometer of the present invention can read measurement result automatically, do in measurement process without artificial
In advance, measurement accuracy rate is high, and operation is convenient.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the overall structure diagram that ophthalmostatometer of the present invention provides；
Fig. 2 is the front view that ophthalmostatometer of the present invention provides；
Fig. 3 is the bottom view that ophthalmostatometer of the present invention provides；
Fig. 4 is the working principle structural schematic diagram that ophthalmostatometer of the present invention provides；
Fig. 5 is the flow diagram of the measurement method of ophthalmostatometer of the present invention.
In figure: 1, guide rail；2, left prism bracket；3, right prism bracket；4, left prism；5, left camera bracket；6,
Left camera；7, right prism；8, right camera bracket；9, right camera；10, scale；11, control module；12, left camera tune
Save knob；13, right camera adjusting knob；14, the first display screen；15, second display screen；16, left hold-down support；17, right solid
Determine support；18, mark line；19, memory module.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Fig. 1 is the structural schematic diagram that a kind of embodiment of ophthalmostatometer of the present invention provides.
As shown in Figures 1 to 4, ophthalmostatometer described in the present embodiment, comprising:
Guide rail 1；
It is fixed with left prism bracket 2 and right prism bracket 3 respectively at the both ends of the guide rail 1；
It is fixed with left prism 4 on the left prism bracket 2, is also equipped with a left side in the lower end of the left prism bracket 2
Camera bracket 5, is additionally provided with left camera 6 on the left camera bracket 5, and the left camera 6 is described for acquiring
The image that left prism 4 reflects；
It is fixed with right prism 7 on the right prism bracket 3, is also equipped with the right side in the lower end of the right prism bracket 3
Camera bracket 8, is additionally provided with right camera 9 on the right camera bracket 8, and the right camera 9 is described for acquiring
The image that right prism 7 reflects；
Wherein, the left prism 4 and the right prism 7 are isosceles right triangle prism；At the isosceles right angle three
One of angular prism is equipped with scale 10 with the perpendicular medial surface of the guide rail 1；
Further include: control module 11 and display module；
The left camera 6, the right camera 9 and the display module are electrically connected with the control module 11 respectively.
Further, the ophthalmostatometer further include: left camera adjusting knob 12 and right camera adjusting knob 13；
The left camera adjusting knob 12 is arranged on the left camera bracket 5, for adjusting the left camera 6
Left-right position on the left camera bracket 5；
The right camera adjusting knob 13 is arranged on the right camera bracket 8, for adjusting the right camera 9
Left-right position on the right camera bracket 8.
Further, at least one prism bracket can be in the left prism bracket 2 and the right prism bracket 3
Fixed bit is adjusted in the guide rail 1 to set.It is equipped with left hold-down support 16 on the top of the left prism bracket 2, on the right side
The top of prism bracket 3 is equipped with right hold-down support 17；The left hold-down support 16 and the right hold-down support 17 are used to fix
The outer margo orbitalis of the eye of measured.At least one prism bracket can be in institute in the left prism bracket 2 and the right prism bracket 3
It states adjusting fixed bit in guide rail 1 to set, which can guarantee before measurements, and measured can be according to socket of the eye outside two eyes
The distance between edge adjusts the distance between the left hold-down support 16 and right hold-down support 17, so that two hold-down support difference
Recline the outer margo orbitalis of right and left eyes of measured.
Further, in actual use, the display module includes: the first display screen 14 and second display screen 15；
First display screen 14 is fixed at the rear end of the left camera bracket 5, and the second display screen 15 is solid
The rear end of the right camera bracket 8 is set calmly；
First display screen 14 and the second display screen 15 are electrically connected with the control module 11 respectively；
First display screen 14 and the second display screen 15 are respectively used to show under the control of the control module 11
Show the protrusion length of the left and right eyeball of measured.
Further, in actual use, the control module 11 can be an individual control module 11, the control
Molding block 11 is electrically connected with the left camera 6 and right camera 9 respectively, the figure that the left camera 6 and right camera 9 acquire
As information is respectively transmitted to the control module 11, the control module 11 respectively sends out the left camera 6 and right camera 9
The image information sent is handled, and the protrusion length information of measured or so eyeball is got, and controls first display screen
14 show the protrusion length information of measured's left eye ball, control the second display screen 15 and show that the measured is right
The protrusion length information of eyeball.
Being also possible to the control module 11 includes: the first control submodule and the second control submodule；
First display screen 14 and the left camera 6 are electrically connected with first control submodule respectively；
The second display screen 15 and the right camera 9 are electrically connected with second control submodule respectively；Described
The image information that one control submodule sends the left camera 6 is handled, and gets the prominent length of measured's left eye ball
Information is spent, and controls the protrusion length information that first display screen 14 shows measured's left eye ball；Second control
The image information that system module sends the right camera 9 is handled, and gets the protrusion length letter of measured's right eye ball
Breath, and control the protrusion length information that the second display screen 15 shows measured's right eye ball.
The control module 11 can be the single-chip microcontroller of model STM32F103CBT6, in actual use, the monolithic
Machine can also connect memory module 19, which is used to store the image that the left camera 6 and right camera 9 acquire
Information, the graphical information are stored in memory module 19, to check for eyeball information of the staff to measured.
Further, the medial surface perpendicular with the guide rail 1 of one of the isosceles right triangle prism is set
Have 0-35 millimeters of scales 10, and at 18 millimeters of the side and one of the isosceles right triangle prism with the guiding
Respectively it is carved with a mark line 18 in the middle position of the parallel medial surface of cross bar 1.The mark line 18 is to be directed at position
Measurement position.
Further, 1 side of guide rail is equipped with 75-125 millimeters of scale 10, for record left and right orbital border it
Between distance.
Ophthalmostatometer described in the present embodiment in actual use, firstly, measured can be according to two before measuring
The distance between outer margo orbitalis of a eye adjusts the distance between the left hold-down support 16 and right hold-down support 17, so that two fixations
Support reclines the outer margo orbitalis of right and left eyes of measured respectively, then starts ophthalmostatometer, measured faces front, left and right camera shooting
Head acquires the eyeball image information of measured respectively, then the eyeball image information of acquisition is sent at control module 11
The projecting degree of measured's axial direction glasses can be converted into lateral length by reason, left prism 4 and right prism 7, and together with etc.
The scale 10 of waist right angled triangle prism medial surface is acquired by the left and right camera together；According to eyeball in control module 11
Image information can obtain the protrusion length information of measured's eyeball, under the control of control module 11, by left and right eyeball
Prominent length information shown by the display module, staff need to only observe the display module can know by
The exophthalmos degree of survey person.
The left camera 6 described in the present embodiment is located at the center position on the left camera bracket 5, the left side
The center of medial surface where two waists of prism 4 (isosceles right triangle prism) is equipped with a mark line 18, and
One in left prism 4 is equipped with 0-35 millimeters of scales, the left camera 6, a left side with the perpendicular medial surface of the guide rail 1
For 18 three of mark line on 4 two medial surfaces of prism in same optical path, the left prism 4 can be by measured's left eye in axial direction
Projecting degree be converted to distance in the horizontal direction, to be acquired by left camera 6, then obtained by the processing of control module 11
To the projecting degree of left eye ball；The working principle that right eye ball projecting degree obtains is identical as left eye ball.
Ophthalmostatometer described in the present embodiment acquires the eyeball image information of measured by left and right camera 9, and leads to
It crosses the control module 11 to handle the eyeball image information, finally will test result and shown by the display module
Out；Ophthalmostatometer described in the present embodiment can read measurement result automatically, and human intervention, measurement are not necessarily in measurement process
Accuracy rate is high, and operation is convenient.
The present invention also provides a kind of measurement methods of ophthalmostatometer, comprising:
Fig. 5 is the flow diagram that the measurement method of ophthalmostatometer of the present invention provides.
As shown in figure 5, measurement method described in the present embodiment includes:
S51: the eyeball image information of measured is acquired；
Further, the eyeball image information includes: left eye ball image information and right eye ball image information；
It is to need to make left prism 4 before the eyeball image information for acquiring measured for left eye ball image information collecting
Two sides two mark lines 18 and 6 three of left camera in same optical path, i.e., by left camera 6 acquire figure
In piece, two mark lines 18 of two sides of the left prism 4 are to be overlapped；
It should be noted that two mark lines 18 of two sides of left prism 4 not necessarily have to be according to above-described embodiment
The middle position that side is set, as long as being able to satisfy two mark lines 18 and 6 three of left camera in same light
The condition on road, two mark lines 18 are all acceptables in the position of left 4 side of prism.
S52: handling the eyeball image information of the measured, obtains the protrusion length information of measured's eyeball；
Further, the eyeball image information to the measured is handled, and obtains the protrusion of measured's eyeball
Length information, comprising:
Gray proces are carried out to the eyeball image information, obtain corresponding gray level image；
The gray level image is subjected to median filter process；
Image after median filter process is converted into bianry image；
The protrusion length information of measured's eyeball is identified in the bianry image.
S53: the protrusion length information of measured's eyeball is shown.
Ophthalmostatometer measurement method described in the present embodiment acquires the eye of measured respectively by left and right camera first
Then eyeball image information is being carried out gray proces, median filter process, then is carrying out binary conversion treatment by ball image information, have
Body, using adaptive threshold Binarization methods, the sliding window of a 25*25 pixel is chosen, finds in window pixel most
Big value and minimum value, and take the average value of the two as threshold value, then each pixel value in window is compared with threshold value,
Pixel more than or equal to threshold value is set to 1, otherwise, is set to 0, and successively method completes the processing of whole image to get binary map is arrived
Picture；Then the protrusion length information of measured's eyeball is identified in the bianry image, concrete operation step is: according to image
1 centimetre of length is indicated on graduated scale, practical 1 centimetre of the occupied pixel x of length, meter in the image after calculating binaryzation
The occupied pixel y of eyeball is calculated, then the protrusion length l calculation formula of eyeball are as follows:
L=y/x (cm).
Exophthalmos described in the working principle of ophthalmostatometer measurement method and above-described embodiment described in the present embodiment
The working principle of meter is identical, and details are not described herein.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of ophthalmostatometer characterized by comprising
Guide rail；
It is fixed with left prism bracket and right prism bracket respectively at the both ends of the guide rail；
It is fixed with left prism on the left prism bracket, is also equipped with left camera branch in the lower end of the left prism bracket
Frame is additionally provided with left camera on the left camera bracket, and the left camera is for acquiring the left prismatic reflection
Image；
It is fixed with right prism on the right prism bracket, is also equipped with right camera branch in the lower end of the right prism bracket
Frame is additionally provided with right camera on the right camera bracket, and the right camera is for acquiring the right prismatic reflection
Image；
Wherein, the left prism and the right prism are isosceles right triangle prism；In the isosceles right triangle rib
One of mirror is equipped with scale with the perpendicular medial surface of the guide rail；
Further include: control module and display module；
The left camera, the right camera and the display module are electrically connected with the control module respectively.
2. ophthalmostatometer according to claim 1, which is characterized in that further include: left camera adjusting knob and the right side are taken the photograph
As head adjusting knob；
The left camera adjusting knob is arranged on the left camera bracket, for adjusting the left camera on the left side
Left-right position on camera bracket；
The right camera adjusting knob is arranged on the right camera bracket, for adjusting the right camera on the right side
Left-right position on camera bracket.
3. ophthalmostatometer according to claim 1, which is characterized in that in the left prism bracket and the right prism branch
At least one prism bracket can adjust fixed bit in the guide rail and set in frame.
4. ophthalmostatometer according to claim 1, which is characterized in that the display module include: the first display screen and
Second display screen；
First display screen is fixed at the rear end of the left camera bracket, and the second display screen is fixed at institute
State the rear end of right camera bracket；
First display screen and the second display screen are electrically connected with the control module respectively；
First display screen and the second display screen are respectively used to show measured's under the control of the control module
The protrusion length of left and right eyeball.
5. ophthalmostatometer according to claim 4, which is characterized in that the control module includes: the first control submodule
Block and the second control submodule；
First display screen and the left camera are electrically connected with first control submodule respectively；
The second display screen and the right camera are electrically connected with second control submodule respectively.
6. ophthalmostatometer according to any one of claims 1 to 5, which is characterized in that on the top of the left prism bracket
End is equipped with left hold-down support, is equipped with right hold-down support on the top of the right prism bracket；
The left hold-down support and the right hold-down support are used to the outer margo orbitalis of eye of fixed measured.
7. ophthalmostatometer according to any one of claims 1 to 5, which is characterized in that the isosceles right triangle rib
One of mirror and the perpendicular medial surface of the guide rail are equipped with 0-35 millimeters of scales, and at 18 millimeters of the side and institute
Respectively it is carved with one in the middle position for stating a medial surface parallel with the guide rail of isosceles right triangle prism
Mark line.
8. ophthalmostatometer according to any one of claims 1 to 5, which is characterized in that the guide rail side is equipped with
75-125 millimeters of scale, for recording the distance between left and right orbital border.
9. a kind of measurement method of ophthalmostatometer characterized by comprising
Acquire the eyeball image information of measured；
The eyeball image information of the measured is handled, the protrusion length information of measured's eyeball is obtained；
The protrusion length information of measured's eyeball is shown.
10. according to the method described in claim 9, it is characterized in that, the eyeball image information to the measured carries out
Processing obtains the protrusion length information of measured's eyeball, comprising:
Gray proces are carried out to the eyeball image information, obtain corresponding gray level image；
The gray level image is subjected to median filter process；
Image after median filter process is converted into bianry image；
The protrusion length information of measured's eyeball is identified in the bianry image.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215185A (en) * | 2019-06-05 | 2019-09-10 | 北京清华长庚医院 | Exophthalmos of orbital patients measuring device |
| CN113425244A (en) * | 2021-06-25 | 2021-09-24 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Sclera measuring device |
| CN113749606A (en) * | 2021-08-31 | 2021-12-07 | 复旦大学附属中山医院 | Wearable eyeball protrusion measuring device and eyeball protrusion measuring method |
| CN117462070A (en) * | 2023-12-11 | 2024-01-30 | 上海长征医院 | Eye parameter measurement equipment and measurement method based on scale projection |
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| CN110215185A (en) * | 2019-06-05 | 2019-09-10 | 北京清华长庚医院 | Exophthalmos of orbital patients measuring device |
| CN113425244A (en) * | 2021-06-25 | 2021-09-24 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Sclera measuring device |
| CN113749606A (en) * | 2021-08-31 | 2021-12-07 | 复旦大学附属中山医院 | Wearable eyeball protrusion measuring device and eyeball protrusion measuring method |
| CN117462070A (en) * | 2023-12-11 | 2024-01-30 | 上海长征医院 | Eye parameter measurement equipment and measurement method based on scale projection |
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