Defect detection method and system for orthokeratology lens

Abstract

The invention relates to the technical field of orthokeratology lens detection, and discloses an orthokeratology lens defect detection method and system.The orthokeratology lens defect detection method comprises the steps that design information and use object information of an orthokeratology lens are collected, optical performance digital simulation is conducted on the basis of the design information, and ideal optical test characteristics are obtained; the method comprises the following steps: evaluating a cornea correction effect according to use object information, analyzing an engineering reasonable deviation range to determine an engineering qualification standard, carrying out expansion simulation on ideal test characteristics according to the engineering qualification standard to obtain qualified optical test characteristics, obtaining an optical test scheme through reverse analysis, executing optical test and obtaining actual test characteristics. The actual test features are matched with the qualified optical test features, the defects of the orthokeratology lens are recognized, the accuracy of optical test is improved through digital simulation and personalized evaluation, the defects are found and corrected in time, and the problem that in the prior art, the false detection risk exists when defect detection is conducted on the orthokeratology lens according to the same standard is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of orthokeratology lens detection, and in particular to a method and system for detecting defects in orthokeratology lenses. Background Art

[0002] Orthokeratology lens (OK lens for short) is a specially designed hard gas permeable contact lens that can be worn at night to change the shape of the cornea, thereby correcting vision during the day without wearing glasses or contact lenses. This technology is widely used in myopia control, astigmatism correction and the treatment of some refractive errors.

[0003] Currently, most defect detection methods for orthokeratology lenses rely too much on manual inspection and lack scientific and standardized automatic detection solutions. Even in some automated detection systems, defect judgment criteria have not been fully optimized for the personalized needs of different users. Since orthokeratology lenses are specially customized for users, the allowable engineering deviations of each orthokeratology lens are different. Using the same standards to perform defect detection on different orthokeratology lenses will result in false detection events such as identifying allowable deviations as unacceptable and identifying unacceptable deviations as allowable. Summary of the invention

[0004] The purpose of the present invention is to provide a defect detection method and system for orthokeratology lenses, aiming to solve the problem in the prior art that there is a risk of misdetection when performing defect detection on orthokeratology lenses using the same standards.

[0005] The present invention is implemented as follows. In a first aspect, the present invention provides a method for detecting defects of orthokeratology lenses, comprising: Acquire design information and user information of the orthokeratology lens; wherein the design information is used to describe the design parameters of each structural component of the orthokeratology lens, and the user information is used to describe the condition parameters of the user of the orthokeratology lens in various visual performance dimensions; Digitally simulate the optical test performance of the orthokeratology lens according to the design information to obtain the ideal optical test characteristics of the orthokeratology lens corresponding to the design information; The corneal correction effect of the design information is evaluated according to the user information, and the reasonable engineering deviation range of the design information is analyzed according to the effect evaluation conclusion to obtain the engineering qualification standard of the orthokeratology lens; Perform corresponding extended simulation on the ideal optical test characteristics according to the engineering qualification standard to obtain qualified optical test characteristics of the orthokeratology lens corresponding to the engineering qualification standard; A reverse analysis of the test execution mode is performed on the qualified optical test feature to obtain an optical test plan, an optical test is performed on the orthokeratology lens according to the optical test plan to obtain an actual test feature of the orthokeratology lens, and the actual test feature is matched with the qualified optical test feature to obtain a defect detection result of the orthokeratology lens.

[0006] In a second aspect, the present invention provides a defect detection system for orthokeratology lenses, which is used to implement a defect detection method for orthokeratology lenses as described in any one of the first aspects, comprising: An information acquisition module, used to acquire design information and user information of the orthokeratology lens; wherein the design information is used to describe the design parameters of each structural component of the orthokeratology lens, and the user information is used to describe the condition parameters of the user of the orthokeratology lens in various visual performance dimensions; A test simulation module, used for digitally simulating the optical test performance of the orthokeratology lens according to the design information, so as to obtain the ideal optical test characteristics of the orthokeratology lens corresponding to the design information; A deviation analysis module, used to evaluate the effect of corneal correction on the design information according to the user information, and to analyze the range of reasonable engineering deviations of the design information according to the effect evaluation conclusion, so as to obtain the engineering qualification standard of the orthokeratology lens; An extended analysis module, used for performing a corresponding extended simulation on the ideal optical test feature according to the engineering qualified standard, so as to obtain a qualified optical test feature of the orthokeratology lens corresponding to the engineering qualified standard; A test execution module is used to perform a reverse analysis of the test execution mode of the qualified optical test features to obtain an optical test plan, perform an optical test on the orthokeratology lens according to the optical test plan to obtain actual test features of the orthokeratology lens, and match the actual test features with the qualified optical test features to obtain defect detection results of the orthokeratology lens.

[0007] The present invention provides a method for detecting defects of orthokeratology lenses, which has the following beneficial effects: The present invention collects design information and user information of orthokeratology lenses, performs digital simulation of optical performance based on the design information to obtain ideal optical test features, evaluates corneal correction effects according to user information, analyzes reasonable engineering deviation ranges to determine engineering qualification standards, performs extended simulation of ideal test features according to engineering qualification standards to obtain qualified optical test features, obtains optical test plans through reverse analysis, executes optical tests and obtains actual test features, matches actual test features with qualified optical test features, identifies defects of orthokeratology lenses, improves accuracy of optical tests through digital simulation and personalized evaluation, and promptly discovers and corrects defects, thereby solving the problem of false detection risks in defect detection of orthokeratology lenses using the same standards in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the steps of a method for detecting defects of orthokeratology lenses provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a defect detection system for orthokeratology lenses provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0009] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0010] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0011] Reference Figure 1 , Figure 2 As shown, a preferred embodiment of the present invention is provided.

[0012] In a first aspect, the present invention provides a method for detecting defects of orthokeratology lenses, comprising: S1: Acquire design information and user information of the orthokeratology lens; wherein the design information is used to describe the design parameters of each structural component of the orthokeratology lens, and the user information is used to describe the condition parameters of the user of the orthokeratology lens in various visual performance dimensions; S2: digitally simulating the optical test performance of the orthokeratology lens according to the design information to obtain ideal optical test characteristics of the orthokeratology lens corresponding to the design information; S3: Evaluate the effect of corneal correction on the design information according to the user information, and analyze the range of reasonable engineering deviation of the design information according to the effect evaluation conclusion to obtain the engineering qualification standard of the orthokeratology lens; S4: performing a corresponding extended simulation on the ideal optical test feature according to the engineering qualification standard to obtain a qualified optical test feature of the orthokeratology lens corresponding to the engineering qualification standard; S5: Perform reverse analysis on the test execution mode of the qualified optical test feature to obtain an optical test plan, perform optical testing on the orthokeratology lens according to the optical test plan to obtain actual test features of the orthokeratology lens, and match the actual test features with the qualified optical test features to obtain defect detection results of the orthokeratology lens.

[0013] Specifically, in step S1 of the embodiment provided by the present invention, the design information and user information of the orthokeratology lens are obtained. The design information of the orthokeratology lens describes the design parameters of each structural component of the lens, including the bending radius of the lens, the thickness of the lens, the shape of the front and back surfaces, the transmittance, the optical center position, etc. The design information is usually obtained from professional design software and customized in combination with clinical data; the user information is used to describe the wearer's eye condition, including parameters of visual performance dimensions, such as refractive power (myopia, astigmatism), corneal morphology (curvature, thickness), eyeball axial length, pupil size, etc. This information is obtained through clinical examinations (such as corneal topography, ophthalmic examinations), reflecting the specific eye physiological characteristics of each user.

[0014] It can be understood that orthokeratology lenses are devices worn on the user's eyes to shape their corneas in order to reduce their myopia. The detailed conditions of each person's eyes are different, so it is necessary to collect user information and make corresponding orthokeratology lenses. In the process of making orthokeratology lenses, certain deviations are allowed, and the allowable range of this deviation needs to be identified by considering the design information of the orthokeratology lenses and the user information. In other words, different orthokeratology lenses can follow different allowable deviation ranges. By identifying the deviation range, it is possible to avoid the usable orthokeratology lenses being discarded or the unusable orthokeratology lenses being used.

[0015] Specifically, in step S2 of the embodiment provided by the present invention, the orthokeratology lens is digitally simulated through optical simulation software using the design information and the wearer's eye information, and the optical properties of the lens (such as the position of the optical center, scattering, aberration, etc.) are simulated and calculated to obtain ideal optical test characteristics. This step is to evaluate whether the lens design can achieve the ideal refractive effect and visual quality under the expected conditions.

[0016] More specifically, the ideal optical test characteristics represent the optical characteristics that the orthokeratology lenses that perfectly match the design information should exhibit under various specified optical tests. By precalculating the optical test characteristics, the orthokeratology lenses can be optically tested and feature matched according to the ideal optical test characteristics in subsequent tests.

[0017] More specifically, the ideal optical test features for orthokeratology lens defect detection may include two types. The first type is the flaw type, including scratches, bubbles, and curling. The second type is the engineering deviation type, including the engineering deviation between the actual processing accuracy and the design information.

[0018] It is understandable that the optical test characteristics brought about by the first type are significantly different from the ideal optical test characteristics, which can be clearly seen through comparison. The optical test characteristics brought about by the second type are less different from the ideal optical test characteristics. Therefore, when inferring the ideal optical test characteristics, it is necessary to adjust the optical test conditions corresponding to the ideal optical test characteristics to optical test conditions that make the test characteristics of the second type more obvious.

[0019] More specifically, the engineering deviation corresponding to the second type is allowable within a certain range, and the specific allowable deviation range needs to take into account the design information and user information of the orthokeratology lens. Therefore, the ideal optical test characteristics need to be corrected based on the allowable deviation range to obtain qualified optical test characteristics, and then the qualified light test characteristics are used as the standard to judge the actual optical test characteristics of the orthokeratology lens.

[0020] Specifically, in step S3 of the embodiment provided by the present invention, the corrective effect of orthokeratology lenses on the cornea is evaluated based on the wearer's individual information (such as corneal morphology, eye refractive power, etc.). Specifically, the shaping effects of different design parameters on the corneal morphology are simulated to predict the changes in the morphology of the cornea after wearing. The variation range of different design parameters is analyzed based on the evaluation results to find a suitable engineering deviation range, thereby ensuring that the lens design can adapt to individual differences and avoiding poor effects caused by design errors. This process ensures that the design of the orthokeratology lenses meets engineering qualification standards.

[0021] It is understandable that the allowable engineering deviation range is different for different design information and user object information, so it is necessary to evaluate the effect of corneal correction on the design information and user object information, and analyze the range based on the evaluation results.

[0022] Specifically, in step S4 of the embodiment provided by the present invention, the effect of corneal correction of the design information is evaluated based on the information of the user object, and the range of reasonable engineering deviation of the design information is analyzed based on the effect evaluation conclusion to obtain the engineering qualification standard of the orthokeratology lens, and the engineering qualification standard of the lens is determined based on the evaluation result.

[0023] It can be understood that the engineering qualification standard is the standard for judging the engineering qualification of orthokeratology lenses by expanding the allowable engineering deviation range based on the design information of orthokeratology lenses.

[0024] Specifically, an extended simulation is performed on the ideal optical test characteristics according to the engineering qualification standards to obtain qualified optical test characteristics of the orthokeratology lens corresponding to the engineering qualification standards.

[0025] More specifically, the ideal optical test characteristics are the optical test characteristics that the orthokeratology lens that perfectly meets the design information should exhibit under several specified optical test conditions, while the qualified optical test characteristics are based on the ideal optical test characteristics, expanding the orthokeratology lens that perfectly meets the design information into a orthokeratology lens that meets the engineering qualification standards, and extrapolating the optical test characteristics that should be exhibited under various optical test conditions under the corresponding ideal optical test characteristics.

[0026] Specifically, in step S5 of the embodiment provided by the present invention, the qualified optical features are reverse analyzed to obtain a specific optical test plan. This step is to convert the simulation data into an actual executable test plan, including the selection of test equipment, test methods, test standards, etc., to ensure the operability and accuracy of the test. The actual optical performance test of the orthokeratology lens is performed according to the optical test plan to obtain the actual test features. Then, by comparing with the qualified optical test features, defect detection is performed to find out possible design deviations or quality problems.

[0027] The present invention provides a method for detecting defects of orthokeratology lenses, which has the following beneficial effects: The present invention collects design information and user information of orthokeratology lenses, performs digital simulation of optical performance based on the design information to obtain ideal optical test features, evaluates corneal correction effects according to user information, analyzes reasonable engineering deviation ranges to determine engineering qualification standards, performs extended simulation of ideal test features according to engineering qualification standards to obtain qualified optical test features, obtains optical test plans through reverse analysis, executes optical tests and obtains actual test features, matches actual test features with qualified optical test features, identifies defects of orthokeratology lenses, improves accuracy of optical tests through digital simulation and personalized evaluation, and promptly discovers and corrects defects, thereby solving the problem of false detection risks in defect detection of orthokeratology lenses using the same standards in the prior art.

[0028] Preferably, the design information includes the central area design parameters, peripheral area design parameters, fitting surface design parameters and outer surface design parameters of the orthokeratology lens; the user object information includes refractive power, corneal curvature distribution, corneal thickness, pupil diameter and astigmatism parameters.

[0029] Specifically, the central area design parameters correspond to the optical center of the orthokeratology lens and its surrounding area, which determine the refractive power and correction effect of the lens, and are usually directly related to the wearer's refractive needs (such as myopia, astigmatism).

[0030] More specifically, the peripheral area design parameters correspond to the edge design of the orthokeratology lens, which is usually related to the stability and comfort of the lens. By adjusting the design of the peripheral area, the adaptability of the lens, the retinal focus position and the wearing feeling can be adjusted.

[0031] More specifically, the fitting surface design parameters correspond to the part of the lens that contacts the cornea, that is, the back surface design of the lens, which directly affects the fit of the lens and the change in corneal shape. Optimizing the fitting surface design can improve the correction effect and reduce discomfort.

[0032] More specifically, the outer surface design parameters correspond to the front surface design of the lens, affecting the breathability, comfort and appearance of the lens. Optimization of the outer surface design is critical to corneal health and long-term comfort of the wearer.

[0033] More specifically, refractive power includes the degree of myopia, hyperopia and astigmatism, which reflects the visual needs of the eyes. The main goal of orthokeratology lens design is to correct these refractive problems by changing the shape of the cornea.

[0034] More specifically, the curvature of the cornea determines the refractive power of the eye, and orthokeratology lenses need to be precisely designed according to the individual's corneal curvature to ensure the best corneal reshaping effect.

[0035] More specifically, corneal thickness affects the design of refractive therapy lenses and changes to the shape of the cornea. A cornea that is too thin or too thick may have an adverse effect on the refractive therapy effect.

[0036] More specifically, pupil size is closely related to visual effect, affecting the design of lenses (especially the design of the central area) and visual comfort when wearing. Generally, a larger pupil diameter requires a wider optical zone.

[0037] More specifically, for patients with astigmatism, the astigmatism correction effect needs to be considered when designing orthokeratology lenses to ensure that the lenses can effectively correct and provide good visual quality.

[0038] More specifically, information about the users is collected, including refractive power, corneal curvature distribution, corneal thickness, pupil diameter and astigmatism parameters, etc. High-precision corneal data is obtained through professional ophthalmic equipment, such as corneal topographers and ophthalmic examination instruments. Personalized eye data is extracted based on these parameters so that orthokeratology lenses can be tailored for each patient.

[0039] More specifically, based on the individual information obtained, the design parameters of the central area are first adjusted to ensure that the refractive effect of the lens can accurately correct the patient's refractive power (including myopia, hyperopia, astigmatism, etc.), and the design parameters of the peripheral area are optimized. The edge shape of the orthokeratology lens is adjusted to ensure that the lens is stable during wearing, does not produce excessive friction, and provides a comfortable wearing experience. The fitting surface design parameters are finely adjusted to ensure the fit between the lens and the cornea to avoid excessive compression or uneven pressure, thereby achieving the best corneal reshaping effect. The fitting surface design needs to take into account factors such as the curvature and thickness of the cornea, and design the outer surface design parameters to optimize the air permeability and comfort of the front surface, while reducing the foreign body sensation when worn.

[0040] More specifically, optical simulation software is used to digitally simulate orthokeratology lenses, verify the effects of different design parameters (such as central area and peripheral area design) on optical performance, and conduct multi-dimensional simulations, including refractive correction effects, visual quality (such as aberrations, astigmatism correction effects, etc.), comfort, etc. The feasibility of the design is evaluated based on the simulation results. Through simulation and simulation, the optical performance of the design can be evaluated in advance to ensure that the expected effect can be achieved when actually worn. Design errors can be reduced by optimizing simulation results, and the wearer's visual experience can be improved.

[0041] More specifically, during the design process, the corneal reshaping effect of the design is evaluated through continuous monitoring of the wearer's corneal curvature, corneal thickness, astigmatism parameters and other information. For example, by simulating and predicting the morphological changes of the cornea, it is evaluated whether the correction expectations can be achieved. If the initial simulation effect of the design is not ideal, it is necessary to adjust the design parameters (such as increasing or decreasing the curvature of the central area of ​​the lens, changing the design of the fitting surface, etc.) for correction. Corneal reshaping lenses can be fine-tuned according to the actual needs of the user to achieve the best correction effect and avoid over-correction or under-correction.

[0042] Preferably, the step of digitally simulating the optical test performance of the orthokeratology lens according to the design information to obtain the ideal optical test characteristics of the orthokeratology lens corresponding to the design information includes: S21: constructing a digital twin model of the orthokeratology lens according to the design information to obtain an idealized digital model of the orthokeratology lens corresponding to the design information; S22: Repeating optical test simulations under different test conditions on the idealized digital model to obtain optical test characteristics of the idealized digital model under different test conditions; S23: simulating the defect assignment of the idealized digital model according to the preset defect standard to obtain several defect digital models of the idealized digital model corresponding to the preset defect standard; wherein the preset defect standard includes scratches, bubbles, and curling; S24: applying the different test conditions received by the idealized digital model to the defect digital model respectively, so that the defect digital model receives optical test simulations of the different test conditions, so as to obtain optical test characteristics of the defect digital model under the different test conditions; S25: Analyzing the deviation amplitude of the optical test characteristics of the idealized digital model and the defect digital model to obtain the test characteristic deviation amplitude of the idealized digital model and the defect digital model corresponding to various test conditions; S26: Select and process various test conditions according to the deviation amplitude of the test characteristics of the idealized digital model and the defect digital model corresponding to various test conditions to obtain several test conditions to be applied to the optical test of orthokeratology lenses, and combine the selected several test conditions and the optical test characteristics of the idealized digital model corresponding to the several test conditions to obtain the ideal optical test characteristics.

[0043] Specifically, an accurate digital twin model is constructed to represent the idealized design of the orthokeratology lens for subsequent optical test simulation, based on the design information, including the design parameters of the central area, peripheral area, fitting surface, and outer surface, combined with the object information (refractive power, corneal curvature, thickness, astigmatism, etc.) to determine the geometry, optical performance, and material properties of the lens.

[0044] More specifically, a three-dimensional digital model of the orthokeratology lens is created based on the above design parameters using CAD (computer-aided design) tools or specialized optical simulation software (such as Zemax, Code V, etc.). The digital twin model not only reflects the geometric shape of the lens, but also simulates the optical behavior of light such as refraction and reflection after passing through the lens. This step provides an accurate idealized digital model as the basis for subsequent simulation and testing. This model can accurately reflect the optical performance expected in the design.

[0045] More specifically, the optical performance of orthokeratology lenses under different test conditions is evaluated through optical test simulation of idealized digital models. A series of key test conditions are selected, such as different incident angles, light source wavelengths, pupil diameters, refractive requirements, etc., and different environmental conditions (such as temperature, humidity, etc.) and wearing conditions (such as different eye movements or pupil changes) are set. These test conditions are applied to the idealized digital model, and optical simulation software (such as OpticStudio, Zemax, etc.) is used to simulate the path of light through the orthokeratology lenses. The impact on visual effects (such as aberrations, field of view quality, visual clarity, etc.) is analyzed, the simulation results are recorded, and the optical test characteristics of the model under various conditions are obtained. Through optical test simulation, the performance of the design scheme under various conditions can be comprehensively evaluated, revealing potential design problems (such as aberrations, image blur, etc.).

[0046] More specifically, the goal is to simulate common defects, analyze their impact on the performance of orthokeratology lenses, and set defect standards based on common defects in actual production. Common defects include: scratches: physical damage on the surface or inside the lens, bubbles: bubbles or gaps inside the lens that may affect light propagation, and curl: slight distortion on the surface or inside the lens that may affect the optical properties of the lens.

[0047] More specifically, based on the idealized digital model, defects such as scratches, bubbles or curls are artificially added to its surface or inside to generate multiple defect digital models. Each type of defect may have different effects on the optical performance of the lens and need to be simulated and analyzed separately. By introducing different types of defects, their impact on the performance of orthokeratology lenses can be evaluated, helping to identify possible problems in the production process and predicting the deviation of optical properties caused by defects.

[0048] More specifically, the impact of defects on the optical performance of lenses under different test conditions is analyzed, and the previously defined test conditions are applied to each defect digital model. For each defect digital model, optical test simulation is performed under different test conditions. For each defect digital model, its optical test characteristics, such as refractive performance, aberration, reflectivity, transmittance, etc., are simulated under different conditions. The specific impact of defects on the optical performance of orthokeratology lenses can be evaluated, and the degree of damage to the overall performance of lenses caused by different defects can be understood. This step provides a basis for quality control in the actual production process.

[0049] More specifically, the optical test characteristic deviations of the idealized digital model and the defective digital model under different test conditions are analyzed, the optical test results of the idealized digital model and the defective digital model under the same test conditions are compared, the deviation amplitude between the two is calculated, and the amplitude of changes in optical performance (such as refractive power, aberration, astigmatism, etc.) is analyzed.

[0050] More specifically, an acceptable range of optical deviations (e.g., tolerance for aberrations, maximum allowable deviations, etc.) is set based on actual application requirements. If the deviation of the defect model exceeds the preset range, the design may need to be adjusted or the production process improved. This allows for quantification of the impact of defects on the optical performance of the lens, and for determination of which defects will lead to unacceptable optical deviations, leading to optimization and improvement.

[0051] More specifically, the test conditions are optimized to obtain the final ideal optical test characteristics. Based on the aforementioned analysis, those test conditions that can most comprehensively and accurately reflect the performance of orthokeratology lenses are selected, and these conditions are optimized to ensure the reliability of the test results.

[0052] More specifically, the selected test conditions are combined with the idealized digital model to obtain ideal optical test characteristics. This combination should include the optical properties of the idealized model under different conditions, such as refractive power, aberration, light transmittance, etc. By selecting and optimizing the test conditions, a set of ideal optical test characteristics is ultimately determined, which provides a theoretical basis for the production and application of orthokeratology lenses. This process ensures that the orthokeratology lenses can achieve the best optical effect when actually worn, while reducing the impact of defects on performance.

[0053] Preferably, the step of evaluating the effect of corneal correction on the design information according to the user object information, and analyzing the range of reasonable engineering deviations of the design information according to the effect evaluation conclusion to obtain the engineering qualification standard of the orthokeratology lens includes: S31: performing dual-directional effect evaluation of wearing safety and shaping effectiveness on the design information according to the user object information, so as to obtain wearing safety evaluation features and shaping effectiveness evaluation features of the design information for the user object information, wherein the wearing safety evaluation features and shaping effectiveness evaluation features together constitute the effect evaluation conclusion; S32: performing trial adjustment processing on the design parameters of each structural component of the design information to obtain a plurality of trial adjustment design information based on the design information, and performing dual-directional effect evaluation of wearing safety and shaping effectiveness on each of the trial adjustment design information according to the user object information to obtain a trial evaluation result of each of the trial adjustment design information for the user object information; S33: analyzing the evaluation differences and conducting feedback supervision on the trial evaluation results according to the effect evaluation conclusion, so as to determine the trial adjustment design information that belongs to reasonable engineering deviations in each trial adjustment design information; S34: Delineate the scope of each of the trial adjustment design information that belongs to the reasonable engineering deviation to obtain the engineering qualification standard of the orthokeratology lens Specifically, a comprehensive evaluation of the design information is carried out to ensure that the orthokeratology lenses can shape the cornea safely and effectively when worn. The safety of the design information on eye wearing is evaluated based on the eye characteristics of the user (such as corneal curvature, eye shape, intraocular pressure, etc.). The parameters involved include the center thickness of the lens, edge design, contact pressure, corneal force distribution, etc. Finite element analysis (FEA) and other methods are used for mechanical simulation to predict the pressure distribution of the lens on the cornea and conjunctiva when worn on the eye, and to evaluate whether there is excessive pressure or discomfort.

[0054] More specifically, evaluate whether the design of the orthokeratology lens can effectively achieve the correction goals (such as vision correction, refractive power adjustment), use simulation software to calculate the contact morphology between the lens and the cornea, analyze whether the design information can lead to ideal corneal reshaping changes, and calculate the improvement of optical performance during the orthokeratology process through optical simulation, corneal deformation modeling and other technologies, including changes in refractive power and improvements in corneal shape. The evaluation features of wearing safety and reshaping effectiveness will jointly constitute a comprehensive effect evaluation conclusion to measure the effectiveness of the design information. Through dual-directional effect evaluation, the safety and effectiveness issues of orthokeratology lens design can be accurately identified, providing a scientific basis for subsequent optimized design.

[0055] More specifically, by adjusting the design parameters, possible optimization schemes under different conditions are explored to determine which adjustments are reasonable engineering deviations. Based on the results of the preliminary effect evaluation, multiple key design parameters (such as lens thickness, center curvature, contact surface design, etc.) are selected for trial adjustment. Each trial adjustment design information will be fine-tuned around the original design to test the impact of different parameters on wearing safety and shaping effectiveness.

[0056] More specifically, for each trial adjustment of the design information, a dual-directional evaluation of wearing safety and shaping effectiveness is performed based on the user information. Numerical simulation, optical simulation, biomechanical analysis and other methods are used to evaluate whether the adjusted design scheme meets the safety and effectiveness requirements. Through trial adjustment and evaluation, potential optimization solutions can be quickly found, providing accurate guidance for subsequent design adjustments.

[0057] More specifically, through the evaluation difference analysis of each trial design information, it is determined which design adjustments are within the engineering feasible deviation range, and the evaluation results of all trial adjustment design information are compared and analyzed, mainly analyzing the differences in two aspects: wearing safety and reshaping effectiveness, including optical performance, corneal force distribution, comfort, etc., to determine which evaluation results show large deviations. These deviations may be caused by excessive or unreasonable adjustment of design parameters. The analysis results are fed back to the design team for further optimization and adjustment to ensure that all deviations are within the acceptable range of the project to avoid affecting the quality of the final product. Through difference analysis and feedback processing, the reasonable range of design deviations can be accurately found to ensure that the design of orthokeratology lenses meets both the correction effect and engineering feasibility.

[0058] More specifically, based on the previous evaluation and adjustment, the engineering qualification standard of orthokeratology lenses was finally determined. According to the results of all trial adjustments and combined with the evaluation characteristics of wearing safety and reshaping effectiveness, the optimal design parameter range was identified. The design within this range is the engineering qualification standard, including the reasonable deviation range of design parameters, optical performance requirements, comfort requirements, etc. The engineering qualification standard is verified through actual sample production and clinical trials to ensure the practicality and reliability of the standard. By defining the engineering qualification standard, it is ensured that the production and application of orthokeratology lenses can achieve the expected safety and effectiveness and meet the actual requirements of engineering manufacturing.

[0059] Preferably, the step of performing dual-directional effect evaluation of wearing safety and shaping effectiveness on the design information according to the user object information to obtain the wearing safety evaluation feature and shaping effectiveness evaluation feature of the design information for the user object information includes: S311: performing digital simulation of contact pressure distribution on the design information according to the user object information, so as to obtain contact pressure distribution characteristics of the user object information corresponding to the design information; S312: performing digital simulation of corneal morphological changes on the design information according to the user object information, so as to obtain corneal morphological change characteristics of the user object information corresponding to the design information; S313: Perform a weighted evaluation of wearing safety and shaping effectiveness on the contact pressure distribution characteristics and the corneal morphology change characteristics based on the historical design reference database to obtain wearing safety evaluation characteristics and shaping effectiveness evaluation characteristics of the design information for the user information.

[0060] Specifically, the pressure distribution generated when the lens contacts the cornea is analyzed, and whether there is excessive pressure or uneven force is evaluated to ensure wearing safety. Eye information of the user is collected, such as corneal curvature, eyeball diameter, intraocular pressure, etc. This information is used to establish an accurate eye model, and finite element analysis (FEA) or other numerical simulation methods are used to simulate the contact between the orthokeratology lens and the cornea. In the numerical model, the geometry of the lens, material properties and the contact interface between the lens and the cornea are defined. The contact points are usually the center and edge of the lens. Loading analysis is performed to simulate the pressure exerted by the lens on the eye when worn, including static and dynamic pressure (such as instantaneous changes when blinking), and a contact pressure distribution map is generated to show the pressure changes in various areas of the eye where the lens contacts, focusing on areas with excessive or uneven contact pressure, which may cause corneal ischemia, conjunctival irritation or discomfort. Through digital simulation, the contact pressure of the lens under different wearing conditions can be accurately evaluated, potential safety risks can be identified in advance, and eye damage or discomfort caused by excessive or uneven pressure in the design can be avoided.

[0061] More specifically, the morphological changes that may occur in the cornea during the wearing of orthokeratology lenses are evaluated to ensure that the shaping effect meets the correction requirements. A detailed corneal morphological model is established based on the eye information of the user. This information may include the anterior and posterior curvature, thickness, corneal volume, etc. of the cornea. Corneal deformation simulation software or other biomechanical modeling tools are used to simulate the changes in corneal morphology. The force of the lens is applied to the model (based on the contact pressure distribution results) to simulate the response of the cornea. By simulating the forces in different time periods, the morphological changes of the cornea are observed. The changes in the refractive power, central curvature and corneal shape of the cornea are analyzed in detail to evaluate whether the cornea can achieve the expected shaping effect. The corneal morphological change diagram is output, including the change in refractive power, adjustment of corneal curvature, etc., to evaluate whether the changes in corneal morphology meet the correction goals and ensure that the designed shaping effect can achieve the expected visual improvement in clinical practice. Through the digital simulation of corneal morphological changes, the effect of corneal shaping can be accurately predicted, and the shaping ability of different designs on the cornea can be evaluated to ensure that the design can effectively improve the refractive power and achieve visual correction.

[0062] More specifically, the contact pressure distribution characteristics and corneal morphology change characteristics are integrated through weighted evaluation to obtain a comprehensive evaluation result of wearing safety and shaping effectiveness.

[0063] More specifically, a historical design reference database is utilized, which contains a large amount of verified orthokeratology lens design data and clinical feedback. The database may include lens design parameters, contact pressure distribution, actual effects of corneal morphology changes, etc.

[0064] More specifically, based on the simulation results of contact pressure distribution, the safety of lens design on cornea and eye is evaluated. Contact pressure uniformity and excessive pressure area all affect wearing safety. Based on the simulation results of corneal morphological changes, the effectiveness of lens design on corneal shaping is evaluated. Focusing on aspects such as refractive power improvement and corneal curvature adjustment, different weights are assigned to wearing safety and shaping effectiveness based on the clinical data and feedback of various designs in the historical database. These weights are determined based on the importance of safety and effectiveness of the design. Combined with the contact pressure distribution characteristics and corneal morphological change characteristics, a comprehensive evaluation result is obtained through a weighted formula, and a comprehensive evaluation result in both wearing safety and shaping effectiveness is obtained.

[0065] More specifically, the weighted evaluation method can comprehensively consider the impact of wearing safety and shaping effectiveness, ensuring that orthokeratology lenses can achieve ideal shaping effects while ensuring safety. With the support of the historical design database, the reliability of the evaluation results can be further verified, and the accuracy and practicality of the design can be improved.

[0066] More specifically, the evaluation results of wearing safety and shaping effectiveness are integrated to ultimately determine whether the orthokeratology lens design meets the requirements. The wearing safety evaluation features and the shaping effectiveness evaluation features are comprehensively analyzed to consider the balance between the two. For example, in some cases, excessive emphasis on shaping effects may lead to decreased wearing safety, and vice versa. The comprehensive evaluation results are used to optimize the design to ensure that the product is both safe and effective in actual wearing. Based on the comprehensive evaluation results, necessary adjustments or optimizations are made to the design to further improve the balance between wearing safety and shaping effectiveness. Through the final integrated evaluation, the feasibility of the orthokeratology lens design can be fully verified, and a basis can be provided for subsequent design iterations to ensure that the final design meets user needs and meets industry standards.

[0067] Preferably, the step of performing corresponding extended simulation on the ideal optical test feature according to the engineering qualification standard to obtain the qualified optical test feature of the orthokeratology lens corresponding to the engineering qualification standard includes: S41: performing an extended simulation on the idealized digital model according to the engineering qualification standard to obtain an extended digital model corresponding to the engineering qualification standard; S42: Retrieving various test conditions corresponding to the ideal optical test characteristics to perform optical test simulation on the extended digital model to obtain optical test characteristics of the extended digital model under various test conditions; S43: Expanding the ideal optical test characteristics according to the optical test characteristics of the expanded digital model under various test conditions to obtain qualified optical test characteristics of the orthokeratology lens corresponding to the engineering qualification standard.

[0068] Specifically, the idealized digital model is expanded to meet engineering qualification standards to provide a basis for subsequent optical testing. The initial model used for orthokeratology lens design is usually an idealized geometric model or a perfect design based on an assumption. For example, the optical design parameters of the lens (such as curvature radius, thickness, diameter, etc.) are idealized without considering the errors that may occur in actual use.

[0069] More specifically, based on the engineering qualification standards, extended simulation conditions are defined. These conditions may include manufacturing errors, material property deviations, wearing environment (such as humidity, temperature, eye movement, etc.) and actual wearing conditions (such as natural changes in corneal morphology). In this step, computer-aided design (CAD) tools and finite element analysis (FEA) or other numerical simulation methods are used to modify the idealized model to simulate the above-mentioned influencing factors.

[0070] More specifically, possible deviations or error sources are added to the simulation, and the model is adjusted based on engineering qualification standards. For example, irregularities on the lens surface, elastic properties of the material, possible tolerances in the manufacturing process, etc., will affect the performance of the final design, and an expanded digital model is generated. This model should include all actual factors that affect lens performance so that it meets engineering qualification standards. By expanding the simulation, the idealized model can be combined with actual conditions to obtain a more realistic digital model that meets actual engineering requirements, providing a basis for subsequent optical testing.

[0071] More specifically, the various test conditions corresponding to the ideal optical test characteristics are retrieved, the performance of the ideal optical test characteristics under different conditions is clarified, and detailed parameter configuration is provided for the simulation test. The ideal optical test characteristics usually include the transmittance, refractive index, optical center position, aberrations (such as spherical aberration, coma, etc.), optical transfer function (MTF), refractive power distribution, etc. of the orthokeratology lens. These characteristics are obtained through idealized conditions in the design stage.

[0072] More specifically, the specific conditions required for optical testing are determined according to the engineering qualification standards. Different test conditions may include: different light source types (such as point light source, parallel light beam), measurement environment (such as humidity, temperature, airflow, etc.), lens wearing angle or corneal surface morphology (such as different eye angles, intraocular pressure changes, etc.), the impact of long-term lens wearing on optical performance (such as material aging, lens surface deformation, etc.) More specifically, these test conditions are connected to the expanded digital model to ensure that the simulation reflects all variables that affect optical performance. By accurately defining and retrieving each test condition corresponding to the ideal optical test characteristics, the comprehensiveness and accuracy of the test process simulation can be ensured, and the simulation results can reflect the optical performance under actual wearing conditions.

[0073] More specifically, the optical performance of the expanded digital model is simulated under different test conditions to obtain the optical characteristics of the model in a real environment. Optical simulation software (such as Zemax, Code V, etc.) is used to simulate the optical characteristics according to the defined test conditions. These simulations include but are not limited to: Refractive power test: evaluate the refractive power change of the lens to check whether the expected vision correction effect is achieved; Aberration analysis: analyze the aberrations of the lens, such as spherical aberration, coma, etc., and evaluate their impact on vision quality; MTF test: evaluate the optical transfer function (Modulation Transfer Function) of the lens, that is, the ability of the optical system to transmit different spatial frequencies, and evaluate the resolution and clarity of the lens; Ray tracing analysis: simulate the propagation of light on the surface of the orthokeratology lens to check its refraction and reflection characteristics.

[0074] More specifically, simulation results are generated, such as refractive power diagrams, aberration distribution, MTF curves, etc., to evaluate the optical performance of the extended model under various conditions. By performing optical test simulations on the extended digital model, the performance of the lens under various conditions can be foreseen to ensure that the optical performance meets the design requirements and satisfies engineering qualification standards.

[0075] More specifically, the ideal optical test features are expanded to accommodate engineering qualification standards in actual environments, ensuring that the design meets all performance requirements. Based on the optical test results of the expanded digital model under different conditions, the parameters of the original design are adjusted. This may include fine-tuning the curvature radius, thickness, material, etc. of the lens to improve optical performance. Based on the test results, the optical transfer function, refractive power, aberration and other parameters are modified to meet engineering qualification standards.

[0076] More specifically, the optimized design is compared with the original idealized model to ensure that it can still maintain the expected optical performance under the engineering qualification standards. Further test simulations are carried out to confirm that the optical characteristics after the expansion processing meet all design requirements. Through expansion processing, the ideal optical design can be transformed into a qualified design that meets the actual use environment, ensuring that the optical performance of the lens under various actual conditions meets the expected standards.

[0077] More specifically, the qualified optical test characteristics of the orthokeratology lens that meet the engineering qualification standards are finally derived, and the results of all optical tests (such as refractive power, aberration, MTF, etc.) are summarized and evaluated against the engineering qualification standards. If the results meet the requirements, it can be determined that the design meets the engineering qualification standards; if there are deviations, the design needs to be further optimized. Once it passes all optical tests and meets the standards, the design can be approved as the final qualified optical test characteristics and is ready to enter the production and actual application stage. The final qualified optical test characteristics evaluation ensures that the orthokeratology lens design meets the engineering qualification standards, has reliable optical performance and practicality, and is suitable for clinical use.

[0078] Preferably, the step of performing reverse analysis on the test execution mode of the qualified optical test feature to obtain the optical test solution comprises: S51: Obtaining performance specification parameters of a test device prepared for applying an optical environment to the orthokeratology lens to be tested; S52: Analyze the device operation parameters required for implementing each test condition corresponding to the qualified optical test feature according to the performance specification parameters to obtain a test execution method corresponding to each test condition, and each of the test execution methods together constitutes an optical test plan.

[0079] Specifically, determine the performance specifications of the test equipment to provide a basis for the implementation of the test conditions. Select appropriate test equipment based on the type of optical test that needs to be performed (such as refractive power, aberration, MTF, ray tracing, etc.). For example, use an optical test bench, light source system, camera equipment, detector, computer simulation system, etc. The test equipment should meet certain optical accuracy and stability requirements so that it can accurately simulate and test the optical performance of orthokeratology lenses.

[0080] More specifically, the performance specifications of the acquisition device include: light source characteristics: including the wavelength range, light intensity distribution, beam shape, etc. of the light source; imaging system: such as the resolution, distortion, imaging accuracy, etc. of the lens; detector specifications: the resolution, noise characteristics, dynamic range, etc. of the detector; optical platform accuracy: such as the accuracy of the test bench, the positioning accuracy of the light source and detector, etc.; control system: the accuracy control and parameter setting range of the device, and whether the test conditions can be accurately adjusted.

[0081] More specifically, after obtaining the performance specification parameters of the equipment, the equipment is debugged to ensure that it can meet the required test conditions. By obtaining and understanding the performance specifications of the test device, it is ensured that an optical environment that meets the test requirements can be provided, ensuring that subsequent tests are highly accurate and reliable.

[0082] More specifically, the device operating parameters required to implement each test condition corresponding to the qualified optical test feature are analyzed according to the performance specification parameters. The specific operating parameters required for each test condition are analyzed according to the test conditions and the performance specifications of the test device. The optical test conditions are analyzed: the test conditions corresponding to each optical test feature are determined, such as: refractive power test: a specific light source and the relative position of the orthokeratology lens are required, aberration analysis: a high-precision imaging system and detector are required, MTF test: a high-resolution optical transfer function measurement device is required, ray tracing analysis: precise light source adjustment and high-precision imaging instruments are required.

[0083] More specifically, the device operating parameters under each condition are determined by comparing the test conditions with the performance specifications of the device. For example, when conducting a refractive power test, the brightness of the light source, the color temperature, and the relative position of the orthokeratology lens and the light source all need to be precisely controlled. When conducting an MTF test, it is necessary to ensure that the resolution of the imaging system is high enough to detect small changes on the lens surface. For aberration testing, it is necessary to determine the calibration and correction accuracy of the imaging system to ensure that errors are minimized.

[0084] More specifically, according to the above analysis, various parameters of the test equipment, such as light source power, focal length, detector sensitivity, focusing mode of the imaging system, etc., are adjusted to meet the requirements of each test condition.

[0085] More specifically, determine the settings for various test parameters: for example, for refractive power testing, the device needs to set the corresponding light source intensity, the position of the orthokeratology lens, and the field of view; for MTF testing, the device needs to provide higher resolution, higher contrast, and precise angle adjustment. Through in-depth analysis of test conditions and device parameters, the operating parameters of the device can be accurately set to ensure the measurement accuracy and reliability of each optical feature in the actual test, thereby laying a solid foundation for the formulation of subsequent optical testing plans.

[0086] More specifically, based on the analysis results of the device operating parameters, a specific test execution method is formulated for each test condition, and a test execution plan is formulated for each test condition: Test method for refractive power test: Use a standard light source to illuminate the orthokeratology lens, and calculate the refractive power value by measuring the refraction of light passing through the lens. The equipment requires high-precision light source control and precise orthokeratology lens positioning device.

[0087] More specifically, the aberration test method places the orthokeratology lens on an optical test bench and calculates the aberration value (such as spherical aberration, coma, etc.) by analyzing the image captured by the imaging system. The equipment requires a high-resolution camera or sensor, as well as precise light source and test bench adjustment.

[0088] More specifically, the MTF test uses a light source of known spatial frequency to pass through the lens, measure the optical transfer function (MTF), and analyze the transfer effect at different spatial frequencies. The equipment requires a high-resolution optical system and accurate imaging equipment.

[0089] More specifically, the ray tracing analysis test method simulates the light passing through the orthokeratology lens, analyzes the light refraction and reflection path of the lens, and calculates the final optical properties. The equipment requires a high-precision optical simulation platform and optical sensors.

[0090] More specifically, the specific operating steps of each test and the adjustments and recording methods required during the test process need to be clarified. For example, the equipment needs to be calibrated before each test, and the sampling points and measurement accuracy must be confirmed each time data is collected. By specifying the test execution method for each optical test feature, it can be ensured that each test method can be carried out according to the expected conditions and requirements, thereby obtaining accurate test data.

[0091] More specifically, all test execution methods are integrated into a complete optical test solution to ensure the comprehensiveness of the test and the smooth execution. The various test solutions are integrated: the test execution methods such as refractive power, aberration, MTF, ray tracing, etc. are integrated into a complete test process, and the order of the tests and the time, steps, equipment requirements, etc. required for each test are determined.

[0092] More specifically, during the test execution process, the equipment needs to be calibrated and adjusted, the test process needs to be optimized, repeated tests or unnecessary operations need to be reduced, test efficiency needs to be improved, all test execution methods need to be summarized, and a detailed optical test plan needs to be formed, including equipment selection, operating steps, condition setting, data collection, analysis methods, etc. By integrating various test execution methods, a complete optical test plan is finally formed to ensure that in actual testing, all optical characteristics can be comprehensively and accurately measured to meet engineering qualification standards.

[0093] Preferably, the steps of performing an optical test on the orthokeratology lens according to the optical test scheme to obtain actual test features of the orthokeratology lens, and performing matching processing on the actual test features through the qualified optical test features to obtain defect detection results of the orthokeratology lens include: S53: performing optical tests on the orthokeratology lens in sequence according to each test execution mode in the optical test scheme, so as to obtain actual test characteristics of the orthokeratology lens corresponding to each test execution mode; S54: performing matching processing on the actual test feature through the qualified optical test feature to obtain a matching amplitude feature between the actual test feature and the qualified optical test feature; S55: Perform defect condition feedback processing on the matching amplitude characteristics according to preset standards to obtain defect detection results of the orthokeratology lens.

[0094] Specifically, according to the various test conditions specified in the optical testing plan (such as light source type, imaging system, detector parameters, test bench accuracy, etc.), the optical performance tests of the orthokeratology lenses are carried out in sequence. Each test execution method corresponds to different optical characteristics (such as refractive power, wavefront aberration, scattered light, etc.), and should be carried out one by one to ensure that the required test characteristics are fully covered.

[0095] More specifically, under each execution mode, the optical data of the orthokeratology lens under the specific conditions is measured, recorded and organized into actual test characteristics, such as imaging quality, optical distortion, focal length error, etc.

[0096] More specifically, the actual test characteristics are compared with qualified optical test characteristics to identify optical performance deviations. Qualified optical test characteristics refer to pre-set ideal optical performance standards. These characteristics represent the performance indicators of orthokeratology lenses within the optimal or allowable range, such as refractive error, aberration tolerance, optical resolution, etc.

[0097] More specifically, a comparison algorithm (such as error analysis, difference measurement, least squares method, etc.) is used to compare the actual test features with the qualified optical test features, evaluate their matching degree, calculate the matching amplitude features, and obtain the matching difference between the actual test features and the qualified optical test features. The degree of matching can be expressed by error amplitude, deviation value or matching rate.

[0098] More specifically, based on preset standards, it is determined whether the orthokeratology lens has defects and the defect detection results are fed back. The preset standards are a series of tolerance ranges or qualified standards, which may include the maximum error value and deviation range of various optical properties. The standards can be based on international certification standards (such as ISO standards, FDA certification, etc.) or on industry experience or design requirements.

[0099] More specifically, the matching amplitude characteristics are compared with the preset standards. If the deviation of the actual test characteristics exceeds the allowable range, it is determined that there is a defect. The defect characteristics are classified and marked, and a defect feedback report is generated to point out the specific defects (such as excessive focal length error, low imaging quality, excessive aberrations, etc.).

[0100] More specifically, a defect detection report is ultimately output, which includes: the actual value of each test feature and the difference from the qualified optical test feature, the specific defect type and its possible impact, and if a defect exists, the recommended improvement plan or further testing requirements.

[0101] It is understandable that through systematic testing schemes and matching processing, the optical performance of orthokeratology lenses can be accurately evaluated and potential optical defects can be discovered in a timely manner. Automated defect detection and feedback processing reduce the need for manual intervention and improve detection efficiency and consistency. The use of standardized optical testing schemes and preset standards ensures the repeatability and reliability of the testing process, making the quality control of orthokeratology lenses more refined and comprehensive. Through timely feedback on defects, it can provide a basis for product improvement and optimization, ensuring that orthokeratology lenses always meet optical design requirements during the production process. Relying on international or industry standard testing and feedback mechanisms, it ensures that the optical performance of orthokeratology lenses meets relevant certification and safety specifications.

[0102] Reference Figure 2 As shown, in a second aspect, the present invention provides a defect detection system for orthokeratology lenses, which is used to implement a defect detection method for orthokeratology lenses as described in any one of the first aspects, comprising: An information acquisition module, used to acquire design information and user information of the orthokeratology lens; wherein the design information is used to describe the design parameters of each structural component of the orthokeratology lens, and the user information is used to describe the condition parameters of the user of the orthokeratology lens in various visual performance dimensions; A test simulation module, used for digitally simulating the optical test performance of the orthokeratology lens according to the design information, so as to obtain the ideal optical test characteristics of the orthokeratology lens corresponding to the design information; A deviation analysis module, used to evaluate the effect of corneal correction on the design information according to the user information, and to analyze the range of reasonable engineering deviations of the design information according to the effect evaluation conclusion, so as to obtain the engineering qualification standard of the orthokeratology lens; An extended analysis module, used for performing a corresponding extended simulation on the ideal optical test feature according to the engineering qualified standard, so as to obtain a qualified optical test feature of the orthokeratology lens corresponding to the engineering qualified standard; A test execution module is used to perform a reverse analysis of the test execution mode of the qualified optical test features to obtain an optical test plan, perform an optical test on the orthokeratology lens according to the optical test plan to obtain actual test features of the orthokeratology lens, and match the actual test features with the qualified optical test features to obtain defect detection results of the orthokeratology lens.

[0103] In this embodiment, for the specific implementation of each module in the above system embodiment, please refer to the above method embodiment, which will not be repeated here.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for detecting defects in orthokeratology lenses, characterized in that: include: Acquire design information and user information of the orthokeratology lens; wherein the design information is used to describe the design parameters of each structural component of the orthokeratology lens, and the user information is used to describe the condition parameters of the user of the orthokeratology lens in various visual performance dimensions; Digitally simulate the optical test performance of the orthokeratology lens according to the design information to obtain the ideal optical test characteristics of the orthokeratology lens corresponding to the design information; The corneal correction effect of the design information is evaluated according to the user information, and the reasonable engineering deviation range of the design information is analyzed according to the effect evaluation conclusion to obtain the engineering qualification standard of the orthokeratology lens; Perform corresponding extended simulation on the ideal optical test characteristics according to the engineering qualification standard to obtain qualified optical test characteristics of the orthokeratology lens corresponding to the engineering qualification standard; A reverse analysis of the test execution mode is performed on the qualified optical test feature to obtain an optical test plan, an optical test is performed on the orthokeratology lens according to the optical test plan to obtain an actual test feature of the orthokeratology lens, and the actual test feature is matched with the qualified optical test feature to obtain a defect detection result of the orthokeratology lens.

2. A method for detecting defects in orthokeratology lenses according to claim 1, characterized in that: The design information includes the central area design parameters, peripheral area design parameters, fitting surface design parameters and outer surface design parameters of the orthokeratology lens; the user object information includes refractive power, corneal curvature distribution, corneal thickness, pupil diameter and astigmatism parameters.

3. A method for detecting defects in orthokeratology lenses according to claim 1, characterized in that: The step of digitally simulating the optical test performance of the orthokeratology lens according to the design information to obtain the ideal optical test characteristics of the orthokeratology lens corresponding to the design information comprises: Constructing a digital twin model of the orthokeratology lens according to the design information to obtain an idealized digital model of the orthokeratology lens corresponding to the design information; Repeating optical test simulations under different test conditions on the idealized digital model to obtain optical test characteristics of the idealized digital model under different test conditions; Simulating the defect assignment of the idealized digital model according to the preset defect standard to obtain several defect digital models corresponding to the preset defect standard of the idealized digital model; wherein the preset defect standard includes scratches, bubbles, and curling; Applying the different test conditions received by the idealized digital model to the defect digital model respectively, so that the defect digital model receives optical test simulations of the different test conditions, so as to obtain optical test characteristics of the defect digital model under the different test conditions; Analyzing the deviation amplitude of the optical test characteristics of the idealized digital model and the defect digital model to obtain the test characteristic deviation amplitude of the idealized digital model and the defect digital model corresponding to various test conditions; Various test conditions are selected and processed according to the deviation amplitude of the test characteristics corresponding to various test conditions of the idealized digital model and the defect digital model to obtain several test conditions to be applied to the optical test of orthokeratology lenses, and the selected several test conditions and the optical test characteristics of the several test conditions corresponding to the idealized digital model are combined to obtain the ideal optical test characteristics.

4. A method for detecting defects in orthokeratology lenses according to claim 1, characterized in that: The steps of evaluating the effect of corneal correction on the design information according to the user object information, and analyzing the range of reasonable engineering deviation of the design information according to the effect evaluation conclusion to obtain the engineering qualification standard of the orthokeratology lens include: According to the user object information, the design information is evaluated in dual directions of wearing safety and shaping effectiveness, so as to obtain wearing safety evaluation features and shaping effectiveness evaluation features of the design information for the user object information, wherein the wearing safety evaluation features and shaping effectiveness evaluation features together constitute the effect evaluation conclusion; Perform trial adjustment processing on the design parameters of each structural component of the design information to obtain a plurality of trial adjustment design information based on the design information, and perform dual-directional effect evaluation of wearing safety and shaping effectiveness on each of the trial adjustment design information according to the user object information to obtain a trial evaluation result of each of the trial adjustment design information for the user object information; Analyzing the evaluation differences and conducting feedback supervision on the trial evaluation results according to the effect evaluation conclusions, so as to determine the trial adjustment design information that belongs to reasonable deviations of the project in each trial adjustment design information; The trial adjustment design information that belongs to reasonable engineering deviation is scoped to obtain the engineering qualification standard of the orthokeratology lens.

5. A method for detecting defects in orthokeratology lenses as claimed in claim 4, characterized in that: The steps of performing dual-directional effect evaluation of wearing safety and shaping effectiveness on the design information according to the user object information to obtain wearing safety evaluation features and shaping effectiveness evaluation features of the design information for the user object information include: Performing digital simulation of contact pressure distribution on the design information according to the usage object information to obtain contact pressure distribution characteristics of the usage object information corresponding to the design information; Digitally simulating the corneal morphological changes of the design information according to the user object information, so as to obtain the corneal morphological change characteristics of the user object information corresponding to the design information; A weighted evaluation of wearing safety and shaping effectiveness is performed on the contact pressure distribution characteristics and the corneal morphology change characteristics based on a historical design reference database to obtain wearing safety evaluation characteristics and shaping effectiveness evaluation characteristics of the design information for the user information.

6. A method for detecting defects in orthokeratology lenses as claimed in claim 3, characterized in that: The steps of performing corresponding extended simulation on the ideal optical test feature according to the engineering qualification standard to obtain the qualified optical test feature of the orthokeratology lens corresponding to the engineering qualification standard include: Performing an extended simulation on the idealized digital model according to the engineering qualification standard to obtain an extended digital model corresponding to the engineering qualification standard; Retrieving each test condition corresponding to the ideal optical test feature to perform optical test simulation on the extended digital model to obtain the optical test feature of the extended digital model under each test condition; The ideal optical test characteristics are expanded according to the optical test characteristics of the expanded digital model under various test conditions to obtain qualified optical test characteristics of the orthokeratology lens corresponding to the engineering qualification standard.

7. A method for detecting defects in orthokeratology lenses as claimed in claim 6, characterized in that: The step of reversely analyzing the test execution mode of the qualified optical test feature to obtain the optical test solution includes: Obtaining performance specification parameters of a test device prepared for applying an optical environment to the orthokeratology lens to be tested; According to the performance specification parameters, the device operation parameters required for implementing each test condition corresponding to the qualified optical test characteristics are analyzed to obtain a test execution method corresponding to each test condition, and each of the test execution methods together constitutes an optical test plan.

8. A method for detecting defects in orthokeratology lenses as claimed in claim 7, characterized in that: The steps of performing an optical test on the orthokeratology lens according to the optical test scheme to obtain actual test features of the orthokeratology lens, and performing matching processing on the actual test features through the qualified optical test features to obtain defect detection results of the orthokeratology lens include: Performing optical tests on the orthokeratology lens in sequence according to each test execution mode in the optical test scheme to obtain actual test characteristics of the orthokeratology lens corresponding to each test execution mode; Matching the actual test feature with the qualified optical test feature to obtain a matching amplitude feature between the actual test feature and the qualified optical test feature; The defect condition feedback processing is performed on the matching amplitude characteristics according to the preset standard to obtain the defect detection result of the orthokeratology lens.

9. A defect detection system for orthokeratology lenses, characterized in that: A method for detecting defects of orthokeratology lenses according to any one of claims 1 to 8, comprising: An information acquisition module, used to acquire design information and user information of the orthokeratology lens; wherein the design information is used to describe the design parameters of each structural component of the orthokeratology lens, and the user information is used to describe the condition parameters of the user of the orthokeratology lens in various visual performance dimensions; A test simulation module, used for digitally simulating the optical test performance of the orthokeratology lens according to the design information, so as to obtain the ideal optical test characteristics of the orthokeratology lens corresponding to the design information; A deviation analysis module, used to evaluate the effect of corneal correction on the design information according to the user information, and to analyze the range of reasonable engineering deviations of the design information according to the effect evaluation conclusion, so as to obtain the engineering qualification standard of the orthokeratology lens; An extended analysis module, used for performing a corresponding extended simulation on the ideal optical test feature according to the engineering qualified standard, so as to obtain a qualified optical test feature of the orthokeratology lens corresponding to the engineering qualified standard; A test execution module is used to perform a reverse analysis of the test execution mode of the qualified optical test features to obtain an optical test plan, perform an optical test on the orthokeratology lens according to the optical test plan to obtain actual test features of the orthokeratology lens, and match the actual test features with the qualified optical test features to obtain defect detection results of the orthokeratology lens.

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