Method, device and system for acquiring activity of crystalline lens / intraocular lens

Abstract

The invention discloses a lens / intraocular lens activity range obtaining method, device and system, and the method comprises the steps: obtaining an eyeball photo time sequence of an eyeball in an activity process in a first preset time length, and the eyeball photo time sequence comprises eyeball photos and the collection time of the eyeball photos; identifying eye tissues and crystalline lenses / artificial lenses for positioning on each eyeball picture; acquiring an optically corrected positioning eye tissue and lens / artificial lens image on the eyeball picture; a reference object is obtained based on the positioning eye tissue on the image, and the relative distance between the crystalline lens / artificial lens on the image and the reference object is obtained; based on the relative distance and the collection time corresponding to the relative distance, the activity of the crystalline lens / artificial lens is obtained, and the technical problems that in the prior art, an activity measuring method of the crystalline lens / artificial lens cannot be objectively quantified and cannot unify the standard are solved.

Description

Technical Field

[0001] The present invention relates to the field of medical detection technology, and in particular to a method, device and system for acquiring the mobility of a lens or an artificial lens. Background Art

[0002] The lens is a biconvex lens-shaped transparent tissue located in front of the vitreous body, which is suspended behind the iris and in front of the vitreous body by suspensory ligaments. It is elastic and is an important part of the eye's refractive system. It is also the only refractive medium with the ability to adjust.

[0003] An artificial lens is a special lens made of artificial synthetic materials. The shape and function of an artificial lens are similar to the lens of the human eye. After cataract surgery, the cloudy lens is removed and the artificial lens is implanted into the eye to replace the original lens, so that external objects are focused and imaged on the retina, allowing the surrounding scenery to be seen clearly.

[0004] The mobility of the lens / intraocular lens refers to the range and frequency of movement of the lens / intraocular lens in the eye. At present, in clinical practice, the measurement method of this mobility is generally that the doctor asks the patient to rotate the eyeball, and then qualitatively judges the size and speed of the specific position change of the lens / intraocular lens with the naked eye under a slit lamp microscope. However, this measurement method is closely related to the doctor's years of work and accumulated clinical experience, and has many limitations that cannot be objectively quantified and cannot be standardized.

[0005] Therefore, the above-mentioned prior art has at least the following technical problems: the prior art method for measuring the activity of the lens / intraocular lens has the technical problem that it cannot be objectively quantified and cannot have a unified standard. Summary of the invention

[0006] The embodiments of the present application provide a method, device and system for obtaining the activity of a lens / intraocular lens, thereby solving the technical problem that the existing methods for measuring the activity of a lens / intraocular lens cannot be objectively quantified and cannot have a unified standard.

[0007] To solve the above technical problems, in a first aspect, an embodiment of the present application provides a method for acquiring the mobility of a lens / intraocular lens, the method comprising:

[0008] Acquire a time sequence of eyeball photos of an eyeball in an activity process for a first predetermined time period, wherein the time sequence of eyeball photos includes eyeball photos and acquisition time of the eyeball photos;

[0009] Identify the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photographs;

[0010] Obtaining the image of the eye tissue and lens / intraocular lens for positioning after optical correction on the eyeball photograph;

[0011] Acquire a reference object based on the positioning eye tissue on the image, and acquire a relative distance between the lens / intraocular lens on the image and the reference object;

[0012] Based on the relative distance and the acquisition time corresponding to the relative distance, the mobility of the lens / intraocular lens is acquired.

[0013] Further, based on the relative distance and the acquisition time corresponding to the relative distance, obtaining the mobility of the lens / intraocular lens specifically includes:

[0014] Acquiring the activity amount of the front surface of the lens / intraocular lens at the acquisition time corresponding to the image based on the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images;

[0015] Acquiring the amount of activity of the rear surface of the lens / intraocular lens at the acquisition time corresponding to the image based on the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images;

[0016] The amount of movement of the front surface of the lens / intraocular lens and the amount of movement of the rear surface of the lens / intraocular lens are both indicators of the mobility of the lens / intraocular lens.

[0017] Furthermore, based on the relative distance and the acquisition time corresponding to the relative distance, obtaining the mobility of the lens / intraocular lens specifically includes:

[0018] Acquire the activity rate of the front surface of the lens / intraocular lens based on the change amplitude of the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images and the acquisition time difference corresponding to the relative distances;

[0019] Acquire the activity rate of the rear surface of the lens / intraocular lens based on the change amplitude of the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images and the acquisition time difference corresponding to the relative distance;

[0020] Acquire the activity frequency of the front surface of the lens / intraocular lens based on the number of changes in the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images and the corresponding acquisition time difference between the relative distances;

[0021] The activity frequency of the rear surface of the lens / intraocular lens is obtained based on the number of changes in the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images and the corresponding acquisition time difference between the relative distances.

[0022] The movement rate of the front surface, the movement rate of the back surface, the movement frequency of the front surface, and the movement frequency of the back surface are all indicators of the mobility of the lens / intraocular lens.

[0023] Furthermore, the eye tissue used for positioning is one of the iris, the chamber angle, the ciliary muscle end, the iris fossa, and the cornea.

[0024] Furthermore, the activity process refers to the process in which the eyeball returns to the center sight mark from the sight marks in the front, back, left and right directions at the target distance within the second predetermined time period.

[0025] Furthermore, the method of obtaining a reference object based on the positioning eye tissue on the image specifically includes:

[0026] Acquire the vertex of the outer surface of the cornea on the image;

[0027] Obtaining the midpoint of the line connecting the iris, chamber angle, ciliary muscle end or iris fossa on both sides of the lens / intraocular lens on the image;

[0028] The direction passing through the vertex and the midpoint is taken as the Z axis, and the plane passing through the vertex and perpendicular to the Z axis is taken as the reference object.

[0029] Furthermore, the anterior segment OCT imaging technology is used to obtain the time series of eyeball photos.

[0030] In a second aspect, an embodiment of the present application provides a device for acquiring the mobility of a lens / intraocular lens, the device comprising:

[0031] A first acquisition unit, configured to acquire a time sequence of eyeball photos of an eyeball in an activity process for a first predetermined time period, wherein the time sequence of eyeball photos includes eyeball photos and acquisition time of the eyeball photos;

[0032] An identification module, used to identify the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photos;

[0033] A second acquisition unit is used to acquire the image of the eye tissue and lens / intraocular lens for positioning after optical correction on the eyeball photograph;

[0034] A third acquisition unit, configured to acquire a reference object based on the eye tissue for positioning on the image, and acquire a relative distance between the lens / intraocular lens on the image and the reference object;

[0035] A fourth acquisition unit is used to acquire the mobility of the lens / intraocular lens based on the relative distance and the acquisition time corresponding to the relative distance.

[0036] In a third aspect, an embodiment of the present application provides a device for acquiring the activity of a lens / intraocular lens, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method described in any one of the first aspects is implemented.

[0037] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method as described in any one of the first aspects.

[0038] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0039] By acquiring a time series of eyeball photographs during an eyeball activity for a first predetermined time period, identifying eye tissue for positioning and the lens / intraocular lens on each of the eyeball photographs, and optically correcting the eyeball photographs to obtain images of the eye tissue for positioning and the lens / intraocular lens, so as to improve the accuracy of obtaining the activity of the lens / intraocular lens, acquiring a reference object through the eye tissue for positioning on the image, and acquiring a relative distance between the lens / intraocular lens on the image and the reference object, and based on the relative distance and the acquisition corresponding to the relative distance The activity of the lens / artificial lens is obtained by collecting time. Since the eye tissue for positioning on the image is unified as a reference, the activity of the lens / artificial lens obtained based on the reference can be standardized. At the same time, the activity of the lens / artificial lens obtained based on the relative distance can be objectively quantified, which effectively solves the technical problem that the activity measurement method of the lens / artificial lens in the prior art cannot be objectively quantified and cannot be standardized, and achieves the beneficial effects of unified standards, quantitative expression, high accuracy, convenience and ease of use, and high level of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic flow chart of a method for acquiring the mobility of a lens / intraocular lens in an embodiment of the present invention;

[0041] Figure 2It is a schematic structural diagram of a device for acquiring the activity of a lens / intraocular lens in an embodiment of the present invention;

[0042] Figure 3 Schematic diagram of the structure of another device for acquiring the activity of the lens / intraocular lens in an embodiment of the present invention. DETAILED DESCRIPTION

[0043] The embodiments of the present application provide a method, device and system for obtaining the activity of a lens / intraocular lens, thereby solving the technical problem that the existing methods for measuring the activity of a lens / intraocular lens cannot be objectively quantified and cannot have a unified standard.

[0044] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0045] Example 1

[0046] like Figure 1 As shown, this embodiment provides a method for obtaining the mobility of a lens / intraocular lens, the method comprising:

[0047] Acquire a time sequence of eyeball photos of an eyeball in an activity process for a first predetermined time period, wherein the time sequence of eyeball photos includes eyeball photos and acquisition time of the eyeball photos;

[0048] Identify the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photographs;

[0049] Obtaining the image of the eye tissue and lens / intraocular lens for positioning after optical correction on the eyeball photograph;

[0050] Acquire a reference object based on the positioning eye tissue on the image, and acquire a relative distance between the lens / intraocular lens on the image and the reference object;

[0051] Based on the relative distance and the acquisition time corresponding to the relative distance, the mobility of the lens / intraocular lens is acquired.

[0052] Specifically, the acquisition time corresponding to the relative distance refers to the acquisition time of the eyeball photograph from which the image at the relative distance originates.

[0053] It can be known from the above description that the embodiment of the present application obtains a time series of eyeball photographs in which the eyeball is in an activity process for a first predetermined time period, identifies the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photographs, and optically corrects the eyeball photographs to obtain images of the eye tissue for positioning and the lens / intraocular lens to improve the accuracy of obtaining the activity of the lens / intraocular lens, obtains a reference object through the eye tissue for positioning on the image, obtains the relative distance between the lens / intraocular lens on the image and the reference object, and based on the relative distance and the relative distance The activity of the lens / artificial lens is obtained according to the acquisition time corresponding to the relative distance. Since the eye tissue for positioning on the image is unified as a reference, the activity of the lens / artificial lens obtained based on the reference can be standardized. At the same time, the activity of the lens / artificial lens obtained based on the relative distance can be objectively quantified, which effectively solves the technical problem that the activity measurement method of the lens / artificial lens in the prior art cannot be objectively quantified and cannot be standardized, and achieves the beneficial effects of unified standards, quantitative expression, high accuracy, convenience and ease of use, and high level of automation.

[0054] In addition, the embodiment of the present application performs optical correction on the eyeball photo through a light path tracing algorithm. The light path tracing algorithm is an algorithm for simulating the propagation, reflection and refraction of light in three-dimensional space. It calculates the intersection of light and objects by tracing the path of light to obtain the final image.

[0055] The basic principle of the ray tracing algorithm is to emit light from the observation point and determine the path of the light by intersecting with objects in the scene. When the light intersects with an object, the reflection, refraction or absorption of the light can be calculated based on the properties of the object (such as color, reflectivity, etc.). By recursively tracing the path of the light, all the light paths starting from the observation point can be obtained, thereby generating a real image.

[0056] It should be noted that the related technologies of the light path tracing algorithm have been widely disclosed. For the principles and related methods of optical correction of the eyeball photograph in this embodiment based on the light path tracing algorithm, please refer to the prior art, which will not be described in detail here.

[0057] Of course, in the embodiment of the present application, all eyeball tissues in the eyeball photograph can be optically corrected to obtain a complete eyeball image, which is not limited here.

[0058] Further, based on the relative distance and the acquisition time corresponding to the relative distance, obtaining the mobility of the lens / intraocular lens specifically includes:

[0059] Acquiring the activity amount of the front surface of the lens / intraocular lens at the acquisition time corresponding to the image based on the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images;

[0060] Acquiring the amount of activity of the rear surface of the lens / intraocular lens at the acquisition time corresponding to the image based on the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images;

[0061] Acquire the activity rate of the front surface of the lens / intraocular lens based on the change amplitude of the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images and the acquisition time difference corresponding to the relative distances;

[0062] Acquire the activity rate of the rear surface of the lens / intraocular lens based on the change amplitude of the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images and the acquisition time difference corresponding to the relative distance;

[0063] Acquire the activity frequency of the front surface of the lens / intraocular lens based on the number of changes in the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images and the corresponding acquisition time difference between the relative distances;

[0064] The activity frequency of the rear surface of the lens / intraocular lens is obtained based on the number of changes in the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images and the corresponding acquisition time difference between the relative distances.

[0065] The activity of the lens / intraocular lens is obtained based on the activity amount of the front surface, the activity amount of the back surface, the activity rate of the front surface, the activity rate of the back surface, the activity frequency of the front surface, and the activity frequency of the back surface.

[0066] Specifically, the static activity index of the lens / intraocular lens at a single moment is obtained based on the activity amount of the front surface and the activity amount of the back surface, while the dynamic activity index of the lens / intraocular lens is obtained based on the activity rate of the front surface, the activity rate of the back surface, the activity frequency of the front surface, and the activity frequency of the back surface. Combining the above static activity index and dynamic activity index can comprehensively and fully evaluate and understand the activity of the lens / intraocular lens.

[0067] In addition, in order to more intuitively display the mobility of the lens / intraocular lens, the distance relationship between the front and back surfaces of the lens / intraocular lens and the reference object at a single moment can be expressed by a three-dimensional interlayer relative distance topography (different relative distances are displayed in different colors).

[0068] Furthermore, the three-dimensional interlayer relative distance topography can also be displayed dynamically. For example, the front and back surfaces of the lens / artificial lens are used as references, and a dynamic three-dimensional interlayer relative distance topography of 60 frames per second is output to express the activity of the lens / artificial lens. The topography can also be displayed in a partitioned dynamic manner to show the changes in the relative positional relationship between the front and back surfaces of the lens / artificial lens and the reference object in the area, and the activity of the lens in the area is expressed in microns / milliseconds.

[0069] It should be noted that the acquisition time corresponding to the image refers to the acquisition time of the eye photo from which the image is sourced; the acquisition time corresponding to the relative distances refers to the acquisition time corresponding to the images corresponding to the calculated relative distances.

[0070] Furthermore, the eye tissue used for positioning is one of the iris, the chamber angle, the ciliary muscle end, the iris fossa, and the cornea.

[0071] Specifically, when the demand for constant light adjustment is consistent, the positions of the iris, chamber angle, ciliary muscle attachment, iris fossa and cornea in the eye are relatively fixed, and are suitable as anatomical references in ophthalmic image recognition; at the same time, the iris, chamber angle, ciliary muscle attachment and iris fossa are all located around the lens / intraocular lens, and the cornea is located directly in front of the lens / intraocular lens. Therefore, a stable reference can be well constructed through one of the iris, chamber angle, ciliary muscle attachment, iris fossa and the cornea, thereby providing a basis for the subsequent acquisition of the lens / intraocular lens mobility and ensuring stable and accurate lens / intraocular lens mobility.

[0072] Furthermore, the activity process refers to the process in which the eyeball returns to the center sight mark from the sight marks in the front, back, left and right directions at the target distance within the second predetermined time period.

[0073] Specifically, the target distance is 60 cm, and the second predetermined time length is 2 to 3 seconds.

[0074] Furthermore, the anterior segment OCT imaging technology is used to obtain the time series of eyeball photos.

[0075] Specifically, the anterior segment OCT imaging technology is a non-invasive ophthalmic examination technology that uses optical coherence tomography (OCT) to perform high-resolution, non-contact two-dimensional imaging and quantitative analysis of the anterior segment structure. This technology can clearly display the anterior segment structures such as the cornea and the angle of the chamber. Compared with traditional ophthalmic examination technology, the anterior segment OCT imaging technology has higher resolution and lower error rate; in addition, the anterior segment OCT imaging technology can also perform real-time dynamic observation and imaging. Therefore, the use of the anterior segment OCT imaging technology can obtain a qualified time series of the eyeball photos.

[0076] The anterior segment OCT used in this embodiment adopts a frequency sweeping Fourier domain measurement method, and the acquisition time of a 3D cubic tomography image is less than 0.17 seconds, thereby reducing the motion artifacts caused by the lens / artificial lens and eye movement during the period. The light source adopts a wavelength of 1050nm, the anterior segment imaging depth is 16mm, the imaging width is 18mm, the theoretical maximum axial resolution in the eye tissue is 5μm, the scanning speed is 400k A-Line / second, and the scanning mode is 256*256pixel.

[0077] Furthermore, the method of obtaining a reference object based on the positioning eye tissue on the image specifically includes:

[0078] Acquire the vertex of the outer surface of the cornea on the image;

[0079] Obtaining the midpoint of the line connecting the iris, chamber angle, ciliary muscle end or iris fossa on both sides of the lens / intraocular lens on the image;

[0080] The direction passing through the vertex and the midpoint is taken as the Z axis, and the plane passing through the vertex and perpendicular to the Z axis is taken as the reference object.

[0081] Further, identifying the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photos specifically includes:

[0082] Acquire the edge of each eyeball tissue in the eyeball photo based on the Canny edge detection algorithm;

[0083] Based on the edge and the deep learning-based eye tissue recognition model, the eye tissue and lens / intraocular lens for positioning on the eye photo are obtained.

[0084] Specifically, the Canny edge detection algorithm is a popular edge detection algorithm, which was proposed by John F. Canny in 1986. The role of the Canny edge detection algorithm is mainly reflected in the following aspects:

[0085] Edge detection: The Canny edge detection algorithm can effectively detect the edges in an image, which is one of the important tasks in the field of image processing and computer vision. By detecting the edges, important features in the image can be extracted, providing a basis for subsequent image analysis, recognition, and understanding.

[0086] Image segmentation: Edge detection is the basis of image segmentation. By detecting edges, images can be segmented into different areas or objects. The Canny edge detection algorithm can provide accurate edge information, making image segmentation more accurate and effective.

[0087] Feature extraction: The Canny edge detection algorithm can not only detect edges, but also extract edge feature information, such as edge direction, amplitude, etc. These feature information can be used for subsequent target recognition, image matching and other tasks.

[0088] Image enhancement: By detecting and extracting edges, the Canny edge detection algorithm can enhance the contrast and clarity of an image, making the image easier to observe and understand.

[0089] In short, the Canny edge detection algorithm plays an important role in the field of image processing and computer vision. It can provide accurate edge information and provide a basis for subsequent image analysis, recognition and understanding.

[0090] In addition, after a large amount of sample training, a large amount of sample data is prepared according to the needs of eye tissue recognition, and the photos in the eye photo time series database that have been identified by the Canny edge detection algorithm for eye tissue edges are selected as candidate samples, divided into eye tissue recognition training samples and eye tissue recognition test samples, and trained to obtain an eye tissue recognition model based on deep learning. It should be noted that the relevant technology of the training method of the eye tissue recognition model based on deep learning has been widely disclosed. For the training principle and related methods of the eye tissue recognition model based on deep learning, please refer to the existing technology, which will not be repeated here.

[0091] Furthermore, the first predetermined time length is 5 to 8 seconds. Specifically, obtaining a 5 to 8 second time series of eyeball photos is sufficient to obtain sufficient eyeball activity information, which can meet the needs.

[0092] Example 2

[0093] Based on the same inventive concept as the method for acquiring the activity of a lens / intraocular lens in the aforementioned embodiment, the present invention also provides a device for acquiring the activity of a lens / intraocular lens, such as Figure 2 As shown, the device comprises:

[0094] A first acquisition unit 11 is used to acquire a time sequence of eyeball photos of an eyeball in an activity process for a first predetermined time period, wherein the time sequence of eyeball photos includes eyeball photos and acquisition time of the eyeball photos;

[0095] An identification module 12, used to identify the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photos;

[0096] A second acquisition unit 13 is used to acquire the image of the eye tissue and lens / intraocular lens for positioning after optical correction on the eyeball photograph;

[0097] A third acquisition unit 14 is used to acquire a reference object based on the eye tissue for positioning on the image, and to acquire a relative distance between the lens / intraocular lens on the image and the reference object;

[0098] The fourth acquiring unit 14 is configured to acquire the mobility of the lens / intraocular lens based on the relative distance and the acquisition time corresponding to the relative distance.

[0099] Furthermore, the identification module includes:

[0100] A first acquisition module, used for acquiring the edge of each eyeball tissue in the eyeball photo based on the Canny edge detection algorithm;

[0101] The second acquisition module is used to acquire the eye tissue and lens / intraocular lens for positioning on the eye photo based on the edge and the eye tissue recognition model based on deep learning.

[0102] Furthermore, the third acquisition unit includes:

[0103] A third acquisition module is used to acquire the vertex of the outer surface of the cornea on the image;

[0104] A fourth acquisition module is used to acquire the midpoint of the line connecting the iris, chamber angle, ciliary muscle end or iris fossa on both sides of the lens / intraocular lens in the image;

[0105] A fifth acquisition module is used to take the direction passing through the vertex and the midpoint as the Z axis, and take the plane passing through the vertex and perpendicular to the Z axis as the reference object.

[0106] Example 3

[0107] Based on the same inventive concept as the method for acquiring the activity of a lens / intraocular lens in the aforementioned embodiment, the present invention also provides a device for acquiring the activity of a lens / intraocular lens, on which a computer program is stored, and when the program is executed by a processor, the steps of any method of the method for acquiring the activity of a lens / intraocular lens described above are implemented.

[0108] Among them, Figure 3 In the embodiment of the present invention, a bus architecture (represented by bus 300) is shown, which may include any number of interconnected buses and bridges, and bus 300 links various circuits including one or more processors represented by processor 302 and memory represented by memory 304. Bus 300 may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are not further described herein. Bus interface 306 provides an interface between bus 300 and receiver 301 and transmitter 303. Receiver 301 and transmitter 303 may be the same element, namely a transceiver, which provides a unit for communicating with various other devices over a transmission medium.

[0109] The processor 302 is responsible for managing the bus 300 and general processing, while the memory 304 may be used to store data used by the processor 302 when performing operations.

[0110] Example 4

[0111] Based on the same inventive concept as the method for acquiring the activity of a lens / intraocular lens in the aforementioned embodiment, the present invention further provides a computer-readable storage medium having a computer program stored thereon, which implements the following steps when executed by a processor:

[0112] Acquire a time sequence of eyeball photos of an eyeball in an activity process for a first predetermined time period, wherein the time sequence of eyeball photos includes eyeball photos and acquisition time of the eyeball photos;

[0113] Identify the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photographs;

[0114] Obtaining the image of the eye tissue and lens / intraocular lens for positioning after optical correction on the eyeball photograph;

[0115] Acquire a reference object based on the positioning eye tissue on the image, and acquire a relative distance between the lens / intraocular lens on the image and the reference object;

[0116] Based on the relative distance and the acquisition time corresponding to the relative distance, the mobility of the lens / intraocular lens is acquired.

[0117] In the specific implementation process, when the program is executed by the processor, any method step in the first embodiment can also be implemented.

[0118] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0119] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0120] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0121] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0122] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for obtaining the mobility of a lens / intraocular lens, characterized in that: The method comprises: Acquire a time sequence of eyeball photos of an eyeball in an activity process for a first predetermined time period, wherein the time sequence of eyeball photos includes eyeball photos and acquisition time of the eyeball photos; Identify the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photographs; Obtaining the image of the eye tissue and lens / intraocular lens for positioning after optical correction on the eyeball photograph; Acquire a reference object based on the positioning eye tissue on the image, and acquire a relative distance between the lens / intraocular lens on the image and the reference object; Based on the relative distance and the acquisition time corresponding to the relative distance, the mobility of the lens / intraocular lens is acquired.

2. A method for obtaining the mobility of a lens / intraocular lens as claimed in claim 1, characterized in that: Based on the relative distance and the acquisition time corresponding to the relative distance, acquiring the mobility of the lens / intraocular lens specifically includes: Acquiring the activity amount of the front surface of the lens / intraocular lens at the acquisition time corresponding to the image based on the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images; Acquiring the amount of activity of the rear surface of the lens / intraocular lens at the acquisition time corresponding to the image based on the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images; The amount of movement of the front surface of the lens / intraocular lens and the amount of movement of the rear surface of the lens / intraocular lens are both indicators of the mobility of the lens / intraocular lens.

3. A method for obtaining the mobility of a lens / intraocular lens as claimed in claim 2, characterized in that: Based on the relative distance and the acquisition time corresponding to the relative distance, acquiring the mobility of the lens / intraocular lens further comprises: Acquire the activity rate of the front surface of the lens / intraocular lens based on the change amplitude of the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images and the acquisition time difference corresponding to the relative distances; Acquire the activity rate of the rear surface of the lens / intraocular lens based on the change amplitude of the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images and the acquisition time difference corresponding to the relative distance; Acquire the activity frequency of the front surface of the lens / intraocular lens based on the number of changes in the relative distance between the front surface of the lens / intraocular lens and the reference object in each of the images and the corresponding acquisition time difference between the relative distances; The activity frequency of the rear surface of the lens / intraocular lens is obtained based on the number of changes in the relative distance between the rear surface of the lens / intraocular lens and the reference object in each of the images and the corresponding acquisition time difference between the relative distances. The movement rate of the front surface, the movement rate of the back surface, the movement frequency of the front surface, and the movement frequency of the back surface are all indicators of the mobility of the lens / intraocular lens.

4. A method for obtaining the mobility of a lens or intraocular lens as claimed in claim 1, characterized in that: The eye tissue for positioning is one of the iris, the chamber angle, the ciliary muscle end, the iris fossa, and the cornea.

5. The method for obtaining the mobility of a lens or an intraocular lens according to claim 1, characterized in that: The activity process refers to the process of the eyeball returning from the sight marks in the front, back, left and right directions at the target distance to the central sight mark within the second predetermined time period.

6. A method for obtaining the mobility of a lens or intraocular lens as claimed in claim 4, characterized in that: The method of obtaining a reference object by using eye tissue for positioning based on the image specifically includes: Acquire the vertex of the corneal outer surface on the image; Obtaining the midpoint of the line connecting the iris, the chamber angle, the ciliary muscle end or the iris fossa on both sides of the lens / intraocular lens on the image; The direction passing through the vertex and the midpoint is taken as the Z axis, and the plane passing through the vertex and perpendicular to the Z axis is taken as the reference object.

7. A method for obtaining the mobility of a lens or intraocular lens as claimed in claim 1, characterized in that: The time series of eyeball photographs was acquired using anterior segment OCT imaging technology.

8. A device for acquiring the activity of a lens or an intraocular lens, characterized in that: The device comprises: A first acquisition unit, configured to acquire a time sequence of eyeball photos of an eyeball in an activity process for a first predetermined time period, wherein the time sequence of eyeball photos includes eyeball photos and acquisition time of the eyeball photos; An identification module, used to identify the eye tissue for positioning and the lens / intraocular lens on each of the eyeball photos; A second acquisition unit is used to acquire the image of the eye tissue and lens / intraocular lens for positioning after optical correction on the eyeball photograph; A third acquisition unit, configured to acquire a reference object based on the eye tissue for positioning on the image, and acquire a relative distance between the lens / intraocular lens on the image and the reference object; A fourth acquisition unit is used to acquire the mobility of the lens / intraocular lens based on the relative distance and the acquisition time corresponding to the relative distance.

9. A device for acquiring the activity of a lens / intraocular lens, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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