Myopia prescription giving method, device, electronic equipment and storage medium
By receiving myopia examination data and comprehensively considering factors such as dominant eye, accommodation, eye position, convergence and divergence, and combining multiple refraction methods, it provides accurate myopia glasses prescription suggestions, solving the problems of inaccurate prescription and insufficient comfort in existing technologies, and achieving the requirements of accuracy and comfort in myopia glasses prescription.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FAST VISION (TIANJIN) TECH CO LTD
- Filing Date
- 2022-10-09
- Publication Date
- 2026-07-10
AI Technical Summary
Existing prescriptions for myopia glasses are inaccurate due to the inaccuracy of computer-assisted refraction and the fluctuating skills and experience of optometrists, making it impossible to accurately determine the degree of myopia. Furthermore, the results of trial fittings are affected by the subjective feelings of the wearer and cannot accurately take into account factors such as dominant eye, accommodation, and convergence, resulting in poor comfort.
By receiving myopia examination data and comprehensively considering factors such as dominant eye, accommodation, eye position, convergence, and astigmatism, combined with age and presbyopia assessment, the Pecival rule is used to determine whether additional prism power is needed. Furthermore, the astigmatism axis and power are determined by combining multiple examination results, such as computer refraction and comprehensive refraction, to provide accurate myopia glasses prescription advice.
It achieves both precision in prescription and eye comfort requirements, ensuring that the glasses meet the individual's long-term comfort needs.
Smart Images
Figure CN115410680B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of myopia prescription technology, specifically to a method, device, electronic device, and storage medium for giving a myopia prescription. Background Technology
[0002] Currently, prescriptions for myopia glasses are determined based on the results of computer-assisted refraction, comprehensive refraction, and trial fitting. Computer-assisted refraction has inherent inaccuracies, comprehensive refraction is significantly affected by the optometrist's skill and experience, and trial fitting results are primarily influenced by the patient's subjective experience. Furthermore, the human eye has a certain degree of adaptability, making it impossible to accurately determine the required prescription. This is because the required prescription is also affected by factors such as accommodation, convergence and divergence, eye position, corneal morphology (affecting astigmatism), habitual viewing distance, presbyopia, and the dominant eye. Summary of the Invention
[0003] To address the aforementioned deficiencies, this application discloses a method, device, electronic device, and storage medium for giving prescriptions for myopia, which not only ensures the accuracy of the prescription but also takes into account factors such as the dominant eye, accommodation, eye position, and convergence, thus better meeting the requirements for sustained eye comfort.
[0004] The first aspect of this application discloses a method for giving a prescription for myopia, the method comprising:
[0005] Receive myopia examination data;
[0006] Determining eyeglass prescriptions based on the aforementioned myopia examination data specifically includes the following steps:
[0007] S1. Determine the patient's dominant eye and the size of v2 and v6. If the patient's dominant eye is the left eye, proceed to step S2; if the patient's dominant eye is the right eye, proceed to step S3. Here, v2 and v6 are the right eye's corrected visual acuity and the left eye's corrected visual acuity in the comprehensive refraction, respectively.
[0008] S2. If v2≤v6, then let X=x2, Y=y2; if v2>v6, then let X=x2+0.25, Y=y2, where X and Y are the lens fitting parameters, respectively, the base lens power for the right eye and the base lens power for the left eye, and x2 and y2 are the right eye hyperopia and the left eye hyperopia in the comprehensive refraction.
[0009] S3. If v2 ≥ v6, then let X = x2 and Y = y2; if v2 is less than v6, then let X = x2 and Y = y2 + 0.25.
[0010] S4. Determine the patient's age. If the patient's age is greater than or equal to 40 years old, proceed to step S5. If the patient's age is less than 40 years old, proceed to step S6.
[0011] S5. Determine whether presbyopia exists based on the values of h and AMP. If h ≥ +0.50 or / and AMP ≤ 4.50, then presbyopia is determined. Here, h is the adjustment lag or adjustment lead, and AMP is the adjustment amplitude. Otherwise, if h < +0.50 and AMP > 4.50, proceed to step S6.
[0012] S6. Determine whether the following conditions are met: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), where i1 is the distant scattered blurry point, t1 is the distant converged blurry point; g2 is the near scattered blurry point, t2 is the near converged blurry point, h1 is the distant eye position measured by the alternating occlusion method, and h2 is the near eye position measured by the alternating occlusion method. If the conditions are met, proceed to step S7.
[0013] S7. Output the values of X and Y directly as the recommended prescription for right and left eye glasses.
[0014] As an optional implementation, in the first aspect of this application, if one or both of the following conditions are not met in step S6: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), then:
[0015] S81. Let BI be positive and BO be negative, where BI is the scattered value and BO is the set value;
[0016] S82, Additional prism P = 1 / 2(h1+h2)-1 / 2[i1+2 / 3(g2-i1)+t1+1 / 3(t2-t1)];
[0017] S83. When |P|>0.25a, determine the sign of the P value. If P is positive, the recommended lens prescription is: right eye lens power: X+0.25(P-0.25a)BO, left eye lens power: Y+0.25(P-0.25a)BO; if P is negative, the recommended lens prescription is: right eye lens power: X-0.25(P-0.25a)BI, left eye lens power: Y-0.25(P-0.25a)BI, where a is the ratio of accommodative set to accommodation.
[0018] S84. When |P|≤0.25a, determine the sign of the value of P. If P is positive, output the lens prescription as follows: right eye lens power: X+0.25, left eye lens power: Y+0.25; if P is negative, output the lens prescription as follows: right eye lens power: X-0.25, left eye lens power: Y-0.25.
[0019] As an optional implementation, in the first aspect of this application, when h ≥ +0.50 or / and AMP ≤ 4.50, it is determined to be presbyopia, and then it further includes:
[0020] Recommended eyeglasses: If the patient has presbyopia or insufficient accommodation, it is recommended to prescribe eyeglasses.
[0021] The lens parameters are ADD=1 / L-1 / 2b or ADD=1 / L+1 / 2(f+j)-2.5, where ADD is the presbyopic lens power to be added when looking at near objects, L is the habitual near viewing distance, f and j are the negative and positive relative accommodation values, respectively, and b is the binocular accommodation amplitude.
[0022] As an optional implementation, in the first aspect of this application, the method further includes:
[0023] Calculate and output the astigmatism axis p of the right eye and the astigmatism axis q of the left eye;
[0024] First, determine how many values exist for p1 to p7. p1 to p7 are the astigmatic axes of the right eye obtained by computer refraction, comprehensive refraction, old lens power examination, red-green balance examination, corneal morphology examination, optical biometry, and slit-lens examination, respectively.
[0025] If p1~p7 have one or two existing values, then let p be equal to any one of the existing values, and let q be equal to any one of the existing values q1~q7, such that p+q=0 or p+q=180; where q1~q7 are the left eye astigmatic axes obtained by computer refraction, comprehensive refraction, old lens power examination, red-green balance examination, corneal morphology examination, optical biometry, and slit-lens examination, respectively.
[0026] If there are three or more existing values in p1 to p7, then let p be equal to the average of the three or more existing values, and let q be equal to the average of the existing values in q1 to q7.
[0027] As an optional implementation, in the first aspect of this application, the method further includes:
[0028] Calculate and output the astigmatism power m of the right eye and the astigmatism power n of the left eye;
[0029] First, determine how many values exist for m1 to m3, where m1 to m3 are the astigmatism values of the right eye obtained from computer refraction, comprehensive refraction, and old lens power examination, respectively.
[0030] If m1~m3 have one or two values, let parameter s be equal to the average of m1-n1, m2-n2, m3-n3, m4-n4, and m5-n5, where m4 and m5 are the right eye astigmatism values obtained from corneal morphology examination and optical biometry, respectively, and n1~n5 are the left eye astigmatism values obtained from computer refraction, comprehensive refraction, old lens power examination, corneal morphology examination, and optical biometry, respectively. Then, compare the absolute values of the differences between s and the three sets of data m1-n1, m2-n2, and m3-n3, and select the set of data with the smallest absolute value of the difference as the target data, denoted as mk-nk, where k=1, 2, or 3, and let m=mk and n=nk.
[0031] If there are three values in m1 to m3, and if there are no duplicate values in m1 to m3 and n1 to n3, then let m be equal to the average of m1 to m3 and n be equal to the average of n1 to n3. If there is a median in m1 to m3, then let m be equal to the median in m1 to m3. If there is a median in n1 to n3, then let n be equal to the median in n1 to n3.
[0032] A second aspect of this application discloses a prescription-giving device for myopia, comprising:
[0033] The receiving unit is used to receive myopia examination data;
[0034] The determining unit, used to determine prescription glasses recommendations based on the myopia examination data, specifically includes:
[0035] The comparison subunit is used to determine the patient's dominant eye and the size of v2 and v6. If the patient's dominant eye is the left eye, the first judgment subunit is executed; if the patient's dominant eye is the right eye, the second judgment subunit is executed. Here, v2 and v6 are the right eye corrected visual acuity and left eye corrected visual acuity in the comprehensive refraction, respectively.
[0036] The first judgment subunit is used to determine if v2≤v6, then let X=x2, Y=y2; if v2>v6, then let X=x2+0.25, Y=y2, where X and Y are the lens fitting parameters, respectively, the base prescription power for the right eye and the base prescription power for the left eye, and x2 and y2 are the right eye hyperopia and the left eye hyperopia in the comprehensive refraction, respectively.
[0037] The second judgment subunit is used to determine if v2≥v6, then let X=x2, Y=y2; if v2<v6, then let X=x2, Y=y2+0.25.
[0038] The third judgment subunit is used to determine the patient's age. If the patient's age is greater than or equal to 40 years old, the fourth judgment subunit is executed; if the patient's age is less than 40 years old, the fifth judgment subunit is executed.
[0039] The fourth judgment subunit is used to determine whether presbyopia exists based on the values of h and AMP. When h ≥ +0.50 or / and AMP ≤ 4.50, it is judged as presbyopia, where h is the adjustment lag or adjustment lead, and AMP is the adjustment amplitude value; otherwise, if h < +0.50 and AMP > 4.50, the fifth judgment subunit is executed.
[0040] The fifth judgment subunit is used to determine whether the following conditions are met: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), where i1 is the blurred point scattered in the distance, t1 is the blurred point gathered in the distance, g2 is the blurred point scattered in the near distance, t2 is the blurred point gathered in the near distance, h1 is the eye position measured in the distance using the alternating occlusion method, and h2 is the eye position measured in the near distance using the alternating occlusion method. If the conditions are met, the output subunit is executed.
[0041] The output subunit is used to directly output the values of X and Y as the recommended prescription for right and left eye glasses.
[0042] A third aspect of this application discloses an electronic device, comprising: a memory storing executable program code; a processor coupled to the memory; the processor calling the executable program code stored in the memory to execute a myopia prescription-giving method disclosed in the first aspect of this application.
[0043] The fourth aspect of this application discloses a computer-readable storage medium storing a computer program, wherein the computer program causes a computer to execute a myopia prescription-giving method disclosed in the first aspect of this application.
[0044] The fifth aspect of this application discloses a computer program product that, when run on a computer, causes the computer to execute a myopia prescription-giving method disclosed in the first aspect of this application.
[0045] The sixth aspect of this application discloses an application publishing platform for publishing computer program products, wherein when the computer program products are run on a computer, the computer executes a myopia prescription-giving method disclosed in the first aspect of this application.
[0046] Compared with the prior art, this application has the following beneficial effects:
[0047] This application not only guarantees the accuracy of the prescription, but also takes into account factors such as the dominant eye, accommodation, eye position, and convergence, making it more in line with the requirements for long-term eye comfort. Attached Figure Description
[0048] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0049] Figure 1 This is a flowchart illustrating a method for giving a myopia prescription as disclosed in this application;
[0050] Figure 2 This is a display effect diagram of a colorimetric image disclosed in this application on a raster background;
[0051] Figure 3 This is a schematic diagram of the structure of a myopia prescription device disclosed in this application;
[0052] Figure 4 This is a schematic diagram of the structure of an electronic device disclosed in this application. Detailed Implementation
[0053] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0054] It should be noted that the terms "first," "second," "third," "fourth," etc., in the specification and claims of this application are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.
[0055] This application discloses a method, device, and electronic device for giving prescriptions for myopia. By comprehensively considering factors such as the dominant eye, accommodation, eye position, convergence, and divergence, it not only ensures the accuracy of the prescription but also meets the requirements for long-term eye comfort. The following is a detailed description in conjunction with the accompanying drawings.
[0056] Example 1
[0057] The method for prescribing myopia disclosed in this application mainly involves obtaining the binocular spherical power based on the comprehensive refraction and considering the dominant eye position, taking the dominant eye position as the guide for the habitual accommodation. Then, the patient's age is used to roughly determine whether presbyopia is possible, and the results of the BCC and accommodation amplitude examination are used to determine in detail whether presbyopia is present and to give an additional power. Finally, the Pecival rule is used to determine whether the patient needs additional prism power and to calculate the corresponding additional power.
[0058] In addition, the astigmatic axis and astigmatic power can be determined by combining computer refraction, comprehensive refraction, old lens power, red-green balance power, corneal morphology, IOLmaster (optical biometry) results, and slit lens results.
[0059] Please see Figure 1 , Figure 1 This is a flowchart illustrating a method for giving a prescription for myopia disclosed in this application. Figure 1 As shown, this method for giving a prescription for myopia includes the following steps:
[0060] S110, Receive myopia examination data.
[0061] The main data for myopia examination include age, dominant eye, AC / A (accommodative convergence to accommodation ratio), distance convergence, near convergence, distance eye position, and near eye position; computer refraction (cycloplegic refraction), comprehensive refraction (MPMVA), old lens power, red-green balance power, corneal morphology, IOL master, slit lens, NRA (negative relative accommodation), PRA (positive relative accommodation), AMP (amplitude of accommodation), BCC (accommodative lag / lead), and habitual near viewing distance (habitual reading distance).
[0062] The normal range for AC / A is 3-5; values above this range are considered high, and values below it are considered low. If you are unsure or have not checked, you can fill in 'unknown'.
[0063] The results of the distance convergence divergence check are BI: i1 / i1 / u1, BO: t1 / o1 / w1, where BI represents divergence, BO represents set, i1 represents the blurred and split points of the distant divergence, u1 represents the regress point of the distant divergence, t1 represents the blurred point of the distant set, o1 represents the split point of the distant set, and w1 represents the regress point of the distant set.
[0064] The results of the proximity divergence check are BI: g2 / i2 / u2, BO: t2 / o2 / w2, where BI represents divergence, BO represents set, g2 represents the fuzzy point of the nearby divergence, i2 represents the split point of the nearby set, u2 represents the regression point of the nearby divergence, t2 represents the fuzzy point of the nearby set, o2 represents the split point of the nearby set, and w2 represents the regression point of the nearby set.
[0065] For distant eye positions, whether it is 'esotropia', 'exotropia', or 'orthotropia', the alternating cover method can be used to measure whether there is deviation in the eye position at a distance. For near eye positions, whether it is 'esotropia', 'exotropia', or 'orthotropia', the alternating cover method can be used to measure whether there is deviation in the eye position at a near distance.
[0066] The results of a computer-assisted refraction test are: OD: +x1 DS / -m1 DC*p1=v1; OS: +y1 DS / -n1 DC*q1=v5, where OD is for the right eye, OS is for the left eye, x1 is the right eye hyperopia, m1 is the right eye astigmatism, p1 is the right eye astigmatism axis, v1 is the right eye corrected visual acuity; y1 is the left eye hyperopia, n1 is the left eye astigmatism, q1 is the left eye astigmatism axis, and v5 is the left eye corrected visual acuity. For example, a patient's computer-assisted refraction results are: OD: -1.50DS / -0.50DC*180=0.8; OS: -2.00DS / -0.75DC*170=1.0.
[0067] The examination information for comprehensive refraction, old lens power, and red-green balance is similar to that of computer refraction. Therefore, in some cases, one or more of the following data can be provided: computer refraction, comprehensive refraction, old lens power, and red-green balance.
[0068] The results of corneal morphology examination are as follows: OD: kf:F1, ks:S1, ΔK=F1-S1=m4@p5; OS: kf:F2, ks:S2, ΔK=F2-S2=n4@q5, where F1 is the flat meridian curvature (kf) of the right cornea, S1 is the steep meridian curvature (ks) of the right cornea, m4 is the corneal astigmatism (ΔK, calculated as ΔK=F1-S1), and p5 is the axis of astigmatism in the right eye. The same applies to the left eye. For example, a patient's corneal morphology examination results are: OD: kf:42.00, ks:43.00, ΔK=42-43=-1=m4@180; OS: kf:41.50, ks:42.75, ΔK=41.5-42.75=-1.25=n4@170;
[0069] The IOL Master test results are: OD: kf:F3, ks:S3, △K=F3-S3=m5@p6; OS: kf:F4, ks:S4, △K=F4-S4=n5@q6. Here, F3 is the flat meridian curvature (kf) of the right cornea, S3 is the steep meridian curvature (ks) of the right cornea, m5 is the corneal astigmatism (△K, calculated as △K=F1-S1), and p6 is the axis of astigmatism in the right eye. The same applies to the left eye. For example, a patient's IOL Master test results are: OD: kf:42.00, ks:43.00, △K=42-43=-1=m5@180; OS: kf:41.50, ks:42.75, △K=41.5-42.75=-1.25=n5@170.
[0070] The astigmatic axis was determined using a slit-scan method. The results were: OD: p7; OS: q7; p7 and q7 are the astigmatic axes of the right and left eyes, respectively.
[0071] The results of NRA and PRA examinations are represented by f and j, respectively.
[0072] The AMP test results are: OU: b1, OD: b2, OS: b3. OU is for both eyes, with a value of b1 (in D). OD is for the right eye, with a value of b2 (in D). OS is for the left eye, with a value of b3 (in D).
[0073] The results of BCC and habitual near-vision examinations are expressed in h and L, respectively.
[0074] S120. Determine eyeglass prescriptions based on the aforementioned myopia examination data, which specifically includes the following steps:
[0075] S121. Determine the patient's dominant eye and the sizes of v2 and v6. If the patient's dominant eye is the left eye, proceed to step S122; if the patient's dominant eye is the right eye, proceed to step S123. Here, v2 and v6 are the right eye's corrected visual acuity and the left eye's corrected visual acuity in the comprehensive refraction, respectively.
[0076] S122. If v2≤v6, then let X=x2, Y=y2; if v2>v6, then let X=x2+0.25, Y=y2, where X and Y are the lens fitting parameters, respectively, the base prescription power for the right eye and the base prescription power for the left eye, respectively, and x2 and y2 are the right eye hyperopia and the left eye hyperopia in the comprehensive refraction, respectively.
[0077] S123. If v2 ≥ v6, then let X = x2 and Y = y2; if v2 is less than v6, then let X = x2 and Y = y2 + 0.25.
[0078] S124. Determine the patient's age. If the patient's age is greater than or equal to 40 years old, proceed to step S125. If the patient's age is less than 40 years old, proceed to step S126.
[0079] S125. Determine whether presbyopia exists based on the values of h and AMP. If h ≥ +0.50 or / and AMP ≤ 4.50, then presbyopia is determined. Here, h is the adjustment lag or adjustment lead, and AMP is the adjustment amplitude. Otherwise, if h < +0.50 and AMP > 4.50, proceed to step S126.
[0080] S126. Determine whether the following conditions are met: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), where i1 is a distant, scattered blurry point, t1 is a distant, converged blurry point; g2 is a near, scattered blurry point, t2 is a near, converged blurry point; h1 is the eye position at a distance measured by the alternating occlusion method, and h2 is the eye position at a near distance measured by the alternating occlusion method. If the conditions are met, proceed to step S127.
[0081] S127. Output the values of X and Y directly as the recommended prescription for right and left eye glasses.
[0082] If one or both of the following conditions are not met in step S126: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), then the Pecival rule is used to determine whether the patient needs additional prism power and the corresponding additional power is calculated.
[0083] The percival rule states that for a comfortable fusion image, the image must be within the fusion range. This rule does not consider eccentricity. Required prism amount: P = 1 / 3G (the side with the larger horizontal fusion range) - 2 / 3L (the side with the smaller horizontal fusion range). If P ≤ 0, the percival rule is met; if P > 0, the rule is not met, and a prism is required.
[0084] Please refer to the details. Figure 2 As shown, it includes the following steps:
[0085] S1281. Let BI be positive and BO be negative, where BI is the scattered value and BO is the set value;
[0086] S1282, Additional prism P = 1 / 2(h1+h2)-1 / 2[i1+2 / 3(g2-i1)+t1+1 / 3(t2-t1)];
[0087] S1283. When 0 < |P| > 0.25a, determine the sign of the P value. If P is positive, the recommended lens prescription is: right eye prescription: X + 0.25(P - 0.25a)BO, left eye prescription: Y + 0.25(P - 0.25a)BO; if P is negative, the recommended lens prescription is: right eye prescription: X - 0.25(P - 0.25a)BI, left eye prescription: Y - 0.25(P - 0.25a)BI, where a is the ratio of accommodative set to accommodation (AC / A, unit: Δ / D).
[0088] S1284. When 0 < |P| ≤ 0.25a, determine the sign of the value of P. If P is positive, output the lens prescription as follows: right eye lens power: X + 0.25, left eye lens power: Y + 0.25. If P is negative, output the lens prescription as follows: right eye lens power: X - 0.25, left eye lens power: Y - 0.25.
[0089] S1285. When the value of P is 0, no prism is needed. Output the lens prescription suggestion according to the result of step S127.
[0090] For presbyopia, when h ≥ +0.50 or / and AMP ≤ 4.50, after a diagnosis of presbyopia is made, a prescription for glasses can be given. For example, if the patient has presbyopia or insufficient accommodation, glasses are recommended. After determining the patient's habitual near vision distance, a rough ADD can be given, i.e., ADD = 1 / L - 1 / 2b, or a precise ADD can be given, i.e., ADD = 1 / L + 1 / 2(f + j) - 2.5, where ADD is the presbyopia lens power to be added when looking at near objects, L is the habitual near vision distance, f and j are the negative and positive relative accommodation values, respectively, and b is the binocular accommodation amplitude.
[0091] The astigmatic axis p of the right eye and the astigmatic axis q of the left eye are determined by a comprehensive assessment using computer-assisted refraction, comprehensive refraction, old lens power, red-green balance power, corneal morphology, IOL master (optical biometry) results, and slit-lens results. Specifically, this includes:
[0092] First, determine how many values exist for p1 to p7. p1 to p7 are the astigmatic axes of the right eye obtained by computer refraction, comprehensive refraction, old lens power examination, red-green balance examination, corneal morphology examination, optical biometry, and slit-lens examination, respectively.
[0093] If p1~p7 have one or two existing values, then let p be equal to any one of the existing values, and let q be equal to any one of the existing values q1~q7, such that p+q=0 or p+q=180; where q1~q7 are the left eye astigmatic axes obtained by computer refraction, comprehensive refraction, old lens power examination, red-green balance examination, corneal morphology examination, optical biometry, and slit-lens examination, respectively.
[0094] If there are three or more existing values in p1 to p7, then let p be equal to the average of the three or more existing values, and let q be equal to the average of the existing values in q1 to q7.
[0095] The astigmatism degree m in the right eye and n in the left eye are determined by a comprehensive assessment using computer-assisted refraction, comprehensive refraction, old lens power, red-green balance power, corneal morphology, IOL master (optical biometry) results, and slit-lens results. Specifically, this includes:
[0096] First, determine how many values exist for m1 to m3, where m1 to m3 are the astigmatism values of the right eye obtained from computer refraction, comprehensive refraction, and old lens power examination, respectively.
[0097] If m1~m3 have one or two existing values, let parameter s be equal to the average of m1-n1, m2-n2, m3-n3, m4-n4, and m5-n5. Assuming there are two existing values, m1 and m2, first calculate the values of m1-n1, m2-n2, m4-n4, and m5-n5 respectively, and then calculate the average, i.e., s = [(m1-n1) + (m2-n2) + (m4-n4) + (m5-n5)] / 4, where m4 and m5 are the values for corneal morphology examination and optical biometry, respectively. The astigmatism of the right eye obtained by measurement examination, n1~n5 are the astigmatism of the left eye obtained by computer refraction, comprehensive refraction, old lens power examination, corneal morphology examination and optical biometry, respectively; then compare the absolute value of the difference between s and the three sets of data m1-n1, m2-n2, m3-n3, and select the set of data with the smallest absolute value of the difference as the target data, denoted as mk-nk, that is, the absolute value of the value calculated by s-mk-nk is the smallest, where k=1 or 2 or 3, let m=mk, n=nk;
[0098] If there are three values in m1 to m3, and if there are no duplicate values in m1 to m3 and n1 to n3, then let m be the average of m1 to m3 and n be the average of n1 to n3. If there is a median in m1 to m3, then let m be the median of m1 to m3. If there is a median in n1 to n3, then let n be the median of n1 to n3.
[0099] Example 2
[0100] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a myopia prescription device disclosed in this application. Figure 3 As shown, the myopia prescription device may include:
[0101] The receiving unit 210 is used to receive myopia examination data;
[0102] Determining unit 220, used to determine prescription glasses recommendations based on the myopia examination data, specifically includes:
[0103] Comparison subunit 221 is used to determine the patient's dominant eye and the size of v2 and v6. If the patient's dominant eye is the left eye, the first judgment subunit is executed; if the patient's dominant eye is the right eye, the second judgment subunit is executed. Here, v2 and v6 are the right eye corrected visual acuity and the left eye corrected visual acuity in the comprehensive refraction, respectively.
[0104] The first judgment subunit 222 is used to determine if v2≤v6, then let X=x2, Y=y2; if v2>v6, then let X=x2+0.25, Y=y2, where X and Y are the lens fitting parameters, respectively, the base prescription power for the right eye and the base prescription power for the left eye, and x2 and y2 are the right eye hyperopia and the left eye hyperopia in the comprehensive refraction, respectively.
[0105] The second judgment subunit 223 is used to determine if v2≥v6, then let X=x2, Y=y2; if v2<v6, then let X=x2, Y=y2+0.25.
[0106] The third judgment subunit 224 is used to determine the patient's age. If the patient's age is greater than or equal to 40 years old, the fourth judgment subunit is executed; if the patient's age is less than 40 years old, the fifth judgment subunit is executed.
[0107] The fourth judgment subunit 225 is used to determine whether presbyopia exists based on the values of h and AMP. When h ≥ +0.50 or / and AMP ≤ 4.50, it is judged as presbyopia, where h is the adjustment lag or adjustment lead, and AMP is the adjustment amplitude value; otherwise, if h < +0.50 and AMP > 4.50, the fifth judgment subunit is executed.
[0108] The fifth judgment subunit 226 is used to determine whether the following conditions are met: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), where i1 is the blurred point scattered in the distance, t1 is the blurred point gathered in the distance, g2 is the blurred point scattered in the near distance, t2 is the blurred point gathered in the near distance, h1 is the eye position measured in the distance using the alternating occlusion method, and h2 is the eye position measured in the near distance using the alternating occlusion method. If the conditions are met, the output subunit is executed.
[0109] Output subunit 227 is used to directly output the values of X and Y as the recommended prescription for right and left eye glasses.
[0110] Example 3
[0111] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of an electronic device disclosed in this application. Figure 4 As shown, the electronic device may include:
[0112] Memory 310 storing executable program code;
[0113] Processor 320 coupled to memory 310;
[0114] The processor 320 calls the executable program code stored in the memory 310 to execute some or all of the steps in the myopia prescription method in Embodiment 1.
[0115] This application discloses a computer-readable storage medium storing a computer program that causes a computer to perform some or all of the steps in a myopia prescription-giving method according to Embodiment 1.
[0116] This application also discloses a computer program product, wherein when the computer program product is run on a computer, the computer performs some or all of the steps in a myopia prescription-giving method in Embodiment 1.
[0117] This application also discloses an application publishing platform, wherein the application publishing platform is used to publish computer program products, wherein when the computer program products are run on a computer, the computer performs some or all of the steps in a myopia prescription giving method in Embodiment 1.
[0118] In the various embodiments of this application, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of this application.
[0119] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they can be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.
[0120] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0121] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-accessible memory. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several requests to cause a computer device (which can be a personal computer, server, or network device, specifically a processor in the computer device) to execute some or all of the steps of the methods described in the various embodiments of this application.
[0122] In the embodiments provided in this application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.
[0123] Those skilled in the art will understand that some or all of the steps in the various methods of the embodiments described can be implemented by a program instructing related hardware. This program can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-Erasable Programmable Read-Only Memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium capable of carrying or storing data.
[0124] The foregoing has provided a detailed description of a method, apparatus, electronic device, and storage medium for giving prescriptions for myopia disclosed in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A method for giving a prescription for myopia, characterized in that, It includes: Receive patients' myopia examination data; Determining eyeglass prescriptions based on the aforementioned myopia examination data specifically includes the following steps: S1. Determine the patient's dominant eye and the size of v2 and v6. If the patient's dominant eye is the left eye, proceed to step S2; if the patient's dominant eye is the right eye, proceed to step S3. Here, v2 and v6 are the right eye's corrected visual acuity and the left eye's corrected visual acuity in the comprehensive refraction, respectively. S2. If v2≤v6, then let X=x2, Y=y2; if v2>v6, then let X=x2+0.25, Y=y2, where X and Y are the base prescription power for the right eye and the base prescription power for the left eye, respectively, and x2 and y2 are the right eye hyperopia power and the left eye hyperopia power in the comprehensive refraction, respectively. S3. If v2≥v6, then let X=x2, Y=y2; if v2<v6, then let X=x2, Y=y2+0.
25. S4. Determine the patient's age. If the patient's age is greater than or equal to 40 years old, proceed to step S5. If the patient's age is less than 40 years old, proceed to step S6. S5. Determine whether presbyopia exists based on the values of h and AMP. If h ≥ +0.50 or / and AMP ≤ 4.50, then presbyopia is determined. Here, h is the adjustment lag or adjustment lead, and AMP is the adjustment amplitude. Otherwise, if h < +0.50 and AMP > 4.50, proceed to step S6. S6. Determine whether the following conditions are met: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), where i1 is the distant scattered blurry point, t1 is the distant converged blurry point; g2 is the near scattered blurry point, t2 is the near converged blurry point, h1 is the distant eye position measured by the alternating occlusion method, and h2 is the near eye position measured by the alternating occlusion method. If the conditions are met, proceed to step S7. S7. Output the values of X and Y directly as the recommended prescription for right and left eye glasses.
2. The method for giving a myopia prescription according to claim 1, characterized in that, If in step S6, one or both of the following conditions are not met: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), then: S81. Let BI be positive and BO be negative, where BI is the scattered value and BO is the set value; S82, Additional prism P = 1 / 2(h1+h2)-1 / 2[i1+2 / 3(g2-i1)+t1+1 / 3(t2-t1)]; S83. When |P|>0.25a, determine the sign of the P value. If P is positive, the recommended lens prescription is: right eye lens power: X+0.25(P-0.25a)BO, left eye lens power: Y+0.25(P-0.25a)BO; if P is negative, the recommended lens prescription is: right eye lens power: X-0.25(P-0.25a)BI, left eye lens power: Y-0.25(P-0.25a)BI, where a is the ratio of accommodative set to accommodation. S84. When |P|≤0.25a, determine the sign of the P value. If P is positive, output the lens prescription as follows: right eye lens power: X+0.25, left eye lens power: Y+0.25; if P is negative, output the lens prescription as follows: right eye lens power: X-0.25, left eye lens power: Y-0.
25.
3. The method for giving a myopia prescription according to claim 1, characterized in that, When h ≥ +0.50 or / and AMP ≤ 4.50, it is diagnosed as presbyopia. Further considerations include: Recommended eyeglasses: If the patient has presbyopia or insufficient accommodation, it is recommended to prescribe eyeglasses. The lens parameters are ADD=1 / L-1 / 2b or ADD=1 / L+1 / 2(f+j)-2.5, where ADD is the presbyopic lens power to be added when looking at near objects, L is the habitual near viewing distance, f and j are the negative and positive relative accommodation values, respectively, and b is the binocular accommodation amplitude.
4. The method for giving a myopia prescription according to any one of claims 1 to 3, characterized in that, The method further includes: Calculate and output the astigmatism axis p of the right eye and the astigmatism axis q of the left eye; First, determine how many values exist for p1 to p7. p1 to p7 are the astigmatic axes of the right eye obtained by computer refraction, comprehensive refraction, old lens power examination, red-green balance examination, corneal morphology examination, optical biometry, and slit-lens examination, respectively. If p1~p7 have one or two existing values, then let p be equal to any one of the existing values, and let q be equal to any one of the existing values q1~q7, such that p+q=0 or p+q=180; where q1~q7 are the left eye astigmatic axes obtained by computer refraction, comprehensive refraction, old lens power examination, red-green balance examination, corneal morphology examination, optical biometry, and slit-lens examination, respectively. If there are three or more existing values in p1 to p7, then let p be equal to the average of the three or more existing values, and let q be equal to the average of the existing values in q1 to q7.
5. The method for giving a myopia prescription according to any one of claims 1 to 3, characterized in that, The method further includes: Calculate and output the astigmatism power m of the right eye and the astigmatism power n of the left eye; First, determine how many values exist for m1 to m3, where m1 to m3 are the astigmatism values of the right eye obtained from computer refraction, comprehensive refraction, and old lens power examination, respectively. If m1~m3 have one or two values, let parameter s be equal to the average of m1-n1, m2-n2, m3-n3, m4-n4, and m5-n5, where m4 and m5 are the right eye astigmatism values obtained from corneal morphology examination and optical biometry, respectively, and n1~n5 are the left eye astigmatism values obtained from computer refraction, comprehensive refraction, old lens power examination, corneal morphology examination, and optical biometry, respectively. Then, compare the absolute values of the differences between s and the three sets of data m1-n1, m2-n2, and m3-n3, and select the set of data with the smallest absolute value of the difference as the target data, denoted as mk-nk, where k=1, 2, or 3, and let m=mk and n=nk. If there are three values in m1 to m3, and if there are no duplicate values in m1 to m3 and n1 to n3, then let m be equal to the average of m1 to m3 and n be equal to the average of n1 to n3. If there is a median in m1 to m3, then let m be equal to the median in m1 to m3. If there is a median in n1 to n3, then let n be equal to the median in n1 to n3.
6. A device for providing prescriptions for myopia, characterized in that, include: The receiving unit is used to receive myopia examination data; The determining unit, used to determine prescription glasses recommendations based on the myopia examination data, specifically includes: The comparison subunit is used to determine the patient's dominant eye and the size of v2 and v6. If the patient's dominant eye is the left eye, the first judgment subunit is executed; if the patient's dominant eye is the right eye, the second judgment subunit is executed. Here, v2 and v6 are the right eye corrected visual acuity and left eye corrected visual acuity in the comprehensive refraction, respectively. The first judgment subunit is used to determine if v2≤v6, then let X=x2, Y=y2; if v2>v6, then let X=x2+0.25, Y=y2, where X and Y are the base values for the right eye and left eye lens prescriptions, respectively, and x2 and y2 are the right eye hyperopia and left eye hyperopia in the comprehensive refraction, respectively. The second judgment subunit is used to determine if v2≥v6, then let X=x2, Y=y2; if v2<v6, then let X=x2, Y=y2+0.
25. The third judgment subunit is used to determine the patient's age. If the patient's age is greater than or equal to 40 years old, the fourth judgment subunit is executed; if the patient's age is less than 40 years old, the fifth judgment subunit is executed. The fourth judgment subunit is used to determine whether presbyopia exists based on the values of h and AMP. When h ≥ +0.50 or / and AMP ≤ 4.50, it is judged as presbyopia, where h is the adjustment lag or adjustment lead, and AMP is the adjustment amplitude value; otherwise, if h < +0.50 and AMP > 4.50, the fifth judgment subunit is executed. The fifth judgment subunit is used to determine whether the following conditions are met: t1+1 / 3(t2-t1)≤h2≤t1+2 / 3(t2-t1) and i1+1 / 3(g2-i1)≤h1≤i1+2 / 3(g2-i1), where i1 is the blurred point scattered in the distance, t1 is the blurred point gathered in the distance, g2 is the blurred point scattered in the near distance, t2 is the blurred point gathered in the near distance, h1 is the eye position measured in the distance using the alternating occlusion method, and h2 is the eye position measured in the near distance using the alternating occlusion method. If the conditions are met, the output subunit is executed. The output subunit is used to directly output the values of X and Y as the recommended prescription for right and left eye glasses.
7. An electronic device, characterized in that, It includes: a memory storing executable program code; a processor coupled to the memory; the processor calling the executable program code stored in the memory to execute the myopia prescription method according to any one of claims 1-5.
8. A computer-readable storage medium, characterized in that, It stores a computer program, wherein the computer program causes the computer to perform the myopia prescription giving method according to any one of claims 1-5.