CN106291976B - A kind of preparation method for the aspherical vision correction mirror that periphery defocus is controllable - Google Patents
A kind of preparation method for the aspherical vision correction mirror that periphery defocus is controllable Download PDFInfo
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Abstract
A kind of preparation method for the aspherical vision correction mirror that periphery defocus is controllable, it includes: (1) by wearing the inspection of mirror periphery defocusing amount to human eye retina's shape or human eye naked eye periphery defocusing amount or human eye, calculates and judges condition needed for human eye forms myopiaization defocus；(2) condition obtained according to myopiaization defocus forms the refractive power of vision correction lens with the distribution scheme of varying aperture；(3) according to the above-mentioned power profile scheme for obtaining vision correction lens, it is fabricated to vision correction mirror, after so that vision correction mirror refractive power is attached to human eye, the power profile that whole eye ametropia force is formed on the retina is greater than central area in neighboring area, and before falling within retina, Myopia defocus is formed；Using the face shape and radius of curvature of aspherical control vision correction Jing Jingpianguangxuequ, make it in aperture direction by set refractive power periphery defocusing amount even variation, refractive power increases with aperture increases, provides degree controllable myopiaization defocus for human eye.
Description
Technical field
The present invention relates to a kind of preparation method of vision correction mirror, in particular to the controllable aspherical view of a kind of periphery defocus
The preparation method of power correction mirror.
Background technique
Defocus (Defocus, out-of-focus) is the corresponding word for focusing (focus), and defocus refers to image planes not in coke
On point, it is divided into preceding defocus (before burnt) and rear defocus (defocused) two states.
The main reason for myopia degree increases is that axiallength extends, and every extension 1mm increases by 3.00 degree of degree.Newest doctor
Learning research confirms, eyeball, which extends, relies on retina (as shown at 10 in figure 1) periphery defocus, and according to dioptrics concept, focus is fallen in
Person is known as Myopia defocus (as shown in figure 1 shown in 30) before retina, falls in person behind retina and is known as long sight defocus (as schemed
In 1 shown in 20).The retinal centre of myopia is in Myopia defocus, and retinal periphery is in long sight defocus, this retina
Peripheral hyperopia defocus is the main reason for promoting myopia degree to be continuously increased.
Eyeball has the characteristics that rely on retinal periphery imaging induction eyeball development, especially under-18s adolescent myopia
Eye, if retinal periphery is imaged as long sight defocus, retina can tend to grow to picture point, and bulbous length will just extend,
If retinal periphery is imaged as Myopia defocus, eyeball will just stop extending.If correcting view by modern medical service method
Film peripheral hyperopia defocus is artificially formed retinal periphery Myopia defocus, so that it may prevent the continuous increasing of myopia degree
Add, while finding out and causing retinal peripheral defocusing reason, the generation and progress of acceptable effectively pre- Anti-myopic eye.
The concept of periphery defocus is to be organized and sum up in the actual clinical in optometry field, initial doctor's hair
Existing, the axiallength of the Ortho-K wearer of part and near-sighted growth rate are delayed, and then find periphery defocus at it
In effect, form periphery defocus control myopia theory.However this theory is constantly in a kind of state of passive finding,
The relevant discussion of doctor and researcher rest on the periphery out-of-focus appearance of a large amount of statistics and analysis human eyes in industry, without shape
At treatment embodiment that is effective, can quantifying；Enterprise, research institution etc. then rest on propose some primary, peripheries from
The burnt uncontrollable product of degree, such as other than Ortho-K, the frame eye using partitioned organization that the later period occurs again
Mirror and optical defocus soft contact lens.
The periphery defocus control mechanism of Ortho-K is the activity using anterior corneal surface cell, wears eyeglass by night
Anterior surface of cornea face is shaped to the shape (spherical surface) for causing Ortho-K optics area inner surface, and then forms the periphery of long sight
Defocus.
The shortcomings that Ortho-K, is, for different patients, the bending degree of retina be it is different, it is existing
Ortho-K the outer surface of cornea is modelled as to the spherical shape in its base curve area, power profile only abides by bending for spherical surface
The luminous power regularity of distribution, i.e., for anterior surface of cornea radius of curvature after identical moulding, power profile only has a kind of list
One form will be unable to form myopia when the curvature of human eye retina is greater than the power profile curvature that cornea is formed
Property periphery defocus, and then the purpose that control myopia increases can not be played；Therefore, base curve area is that the Ortho-K of spherical surface can not shape
Controllable at degree, effective peripheral refraction power control is only capable of making some patientss control myopia of being benefited to increase, and can not accomplish to make
Every patient all realizes effective control of myopia.
Center is designed as 0 spherical aberration optics area of accurately image, edge designs are in the wrong using partitioned organization by frame eyeglasses
Luminous power is higher than the periphery defocus control zone of central area, and the problem of this mode is that periphery defocus exists only in common optics
It other than area, in most cases and does not work, near-sighted control zone is extremely limited and discontinuous.
Lens surface structure is divided into multilayer by optical defocus soft contact lens, is separately designed as different radian (curvature
Radius), 2 kinds of radians alternately realize the long sight defocus of refractive power.But there are two for this mode for realizing the control of periphery defocus
A problem is primarily due to eyeglass containing only there are two types of radian, and optical imaging procedures are similar to the multifocal lens of subregion, and each focus is deposited
It is interfering with each other, is forming halation phenomenon；Secondly as the radius of curvature between each segmental arc is different, meeting is connected between ring and ring
Cause a large amount of stray light, therefore this eyeglass is the biggest problems are that interference of the imaging by optics area multilayered structure, depending on
Feel second-rate.
So far, this technology that myopia growth is controlled using periphery defocus faces two large problems, and one is the absence of one
The periphery defocus control embodiment that kind is specific, can quantify；Two are the absence for the treatment of product effective, that degree is controllable.
It is accordingly required in particular to a kind of preparation method of the aspherical vision correction mirror of periphery defocus controllably, it can be according to patient
Own physiological and refractive status, come periphery quantitative, that degree is controllable defocusing amount product is provided personalizedly, it is above-mentioned to solve
Existing problem.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method of the controllable aspherical vision correction mirror of periphery defocus, for
The deficiencies in the prior art, by measure human eye retina shape periphery defocus or wear mirror periphery defocus come determine eyeglass bend
Luminous power distribution is prepared into vision correction mirror, and human eye is after using vision correction mirror, after so that its refractive power is attached to human eye,
The power profile that whole eye ametropia force is formed on the retina is greater than central area in neighboring area, and before falling within retina,
Myopia defocus is formed, myopia is controlled and increases.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of preparation method of the controllable aspherical vision correction mirror of periphery defocus, it include the following steps:
(1) by wearing the inspection of mirror periphery defocusing amount to human eye retina's shape or human eye naked eye periphery defocusing amount or human eye
It looks into, calculate and judges condition needed for human eye forms myopiaization defocus；
(2) condition obtained according to myopiaization defocus forms the refractive power of vision correction lens with the distribution of varying aperture
Scheme；
(3) according to the above-mentioned power profile scheme for obtaining vision correction lens, it is fabricated to vision correction mirror, rectifys eyesight
After telescope direct refractive power is attached to human eye, the power profile that whole eye ametropia force is formed on the retina is greater than center in neighboring area
Region, and before falling within retina, form Myopia defocus.
In one embodiment of the invention, in above-mentioned steps (1), human eye retina's shape passes through examination equipment for eye
It measures (such as Optical coherence topography OCT), retina is considered as spherical surface by examination equipment for eye, then with the curvature of retina half
The shape of diameter measurement retina.
In one embodiment of the invention, in above-mentioned steps (1), human eye retina's shape passes through examination equipment for eye
Retina is considered as aspherical by measurement, examination equipment for eye, then the shape of retina is measured with aspherical equivalent radius of curvature；
The calculation method of aspherical equivalent radius of curvature is as follows:
Wherein, wherein dmTo measure aperture, M is aperture dmThe point at place, hmIt is for the rise of M point, i.e., aspherical in M point and top
Difference in height between point, rmFor the equivalent radius of curvature of M point.
In one embodiment of the invention, in above-mentioned steps (1), human eye naked eye periphery defocusing amount (Δ D1) can lead to
Examination equipment for eye measurement (such as OCT, corneal topographers, wavefront analyzer) is crossed, on the periphery that vision correction lens provide
When defocusing amount (Δ D2)+human eye naked eye periphery defocusing amount (Δ D1) >=0, human eye forms myopiaization periphery defocus.
In one embodiment of the invention, in above-mentioned steps (1), human eye can wear known diopter and refractive power
Distribution tries eyeglass on, checks that human eye wears mirror periphery defocusing amount (Δ D3) in the case where wearing specular state, human eye wears mirror periphery defocus
Amount (Δ D3) can be measured by examination equipment for eye；When human eye wears mirror periphery defocusing amount (Δ D3) > 0, show to try piece mirror on
The defocusing amount of piece has met the condition for making human eye reach myopiaization periphery defocus, and vision correction mirror can be fabricated to this；Work as people
When eye wears mirror periphery defocusing amount (Δ D3)≤0, show the shape that the defocusing amount of eyeglass still makes human eye be in long sight periphery defocus
State needs to increase the defocusing amount of eyeglass, and human eye is made to reach myopiaization periphery defocus.
In one embodiment of the invention, it can be wanted according to the physiological condition of patient itself and to near-sighted controlling extent
It asks, carries out increasing or reducing for lens periphery defocusing amount, reach personalized vision correction.
In one embodiment of the invention, in above-mentioned steps (2), the whole eye that vision correction lens and human eye are formed is bent
Luminous power distribution meets:
The whole eye ametropia force distribution that vision correction lens and human eye are formed is Myopia relative to the shape of retina
Defocus then meets:
Wherein, DrFor refractive power of the whole eye when radius is r, D0For whole eye at small-bore (paraxial) refractive power, i.e., it is whole
The nominal value of eye ametropia force, r are the radius of retinal plane, and R is the radius of curvature or equivalent radius of curvature of retina.
In one embodiment of the invention, in above-mentioned steps (3), the power profile side that is obtained according to step (2)
Case is fabricated to vision correction mirror by aspheric design method, makes the refractive power of vision correction mirror eyeglass in different pore size in close
Depending on changing defocus distribution, i.e., refractive power increases with aperture increases；The aspherical expression formula:
Wherein, Z (y) is the expression formula of the aspherical curve in YZ plane of vision correction mirror eyeglass, and c is optical section base
The inverse of plinth spherical face radius of curvature, y are vertical range of any point away from axis of abscissas (Z) on the curve, and Q is aspheric
Coefficient, A2iFor aspherical high-order coefficient, each point on the aspheric surface surrounds axis of abscissas (Z) by the curve negotiating
It carries out rotational symmetry variation and obtains；
Q value, each asphericity coefficient by adjusting vision correction mirror eyeglass, make the face shape of vision correction mirror eyeglass in radial direction
Different parts show as different equivalent curvature, realize that equivalent curvature uniformly, continuously changes in entire optics area, to make to regard
Power correcting lens have the refractive power being adapted with Myopia defocus power profile state, peripheral region under different apertures
Domain refractive power is greater than central area refractive power.
It in one embodiment of the invention, further include the control method of an aspheric surface in above-mentioned steps (3),
The control method is to be described by the scale factor η of equivalent radius of curvature, then has:
η is different pore size dm、dnUnder the ratio between r, m > n；
For spherical surface, then η=1；It is more aspherical than central flat for periphery, then η > 1；It is more precipitous than center for periphery
It is aspherical, then η < 1, aspherical under each aperture to design by the control of the scale factor to equivalent radius of curvature
Equivalent radius of curvature, and then make the requirement of the power profile satisfaction myopiaization periphery defocus of eyeglass.
In one embodiment of the invention, a kind of aspherical vision correction mirror is also provided, including the eyesight worn outside eye
Correction mirror, Ortho-K and internal oculoscope, the aspherical vision correction mirror use aspherical vision correction of the present invention
The preparation method of mirror is made.
In one embodiment of the invention, a kind of control using Myopia periphery defocus is also provided to increase with retarding myopia
Long diagnoses and treatment method, the diagnoses and treatment method by using aspherical vision correction mirror of the present invention preparation side
The aspherical vision correction mirror for preparing in method is realized.
The preparation method of the controllable aspherical vision correction mirror of periphery defocus of the invention utilizes compared with prior art
The face shape and radius of curvature of aspherical control vision correction Jing Jingpianguangxuequ, makes vision correction mirror eyeglass in aperture direction by institute
The refractive power periphery defocusing amount even variation of setting, vision correction mirror eyeglass refractive power increase with aperture increases, mention for human eye
For the controllable myopiaization defocus of degree, prevent axis oculi from increasing, retarding myopia is deepened, and achieves the object of the present invention.
The features of the present invention sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clearly
Solution.
Detailed description of the invention
Fig. 1 is the schematic diagram of retina, Myopia defocus and long sight defocus；
Fig. 2 is the flow diagram of vision correction mirror diagnoses and treatment method of the invention；
Fig. 3 is the schematic diagram of retina and power profile of the invention；
Fig. 4 is the schematic diagram of aspheric curve expression formula of the invention；
Fig. 5 is that scale factor η of the invention is related to the schematic diagram of parameter；
Fig. 6 is the flow diagram of the embodiment of the present invention 1；
Fig. 7 is the flow diagram of the embodiment of the present invention 2；
Fig. 8 is the schematic diagram of myopiaization defocus diopter distribution curve of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Term definition:
The term " Myopia periphery defocus " used in this application refers to that neighboring area refractive power is bent greater than central area
Luminous power before the picture point of neighboring area falls within retina, defines periphery defocusing amount when central pixel is fallen on retina at this time
Δ D > 0.
The term " long sight periphery defocus " used in this application refers to that neighboring area refractive power is bent less than central area
Luminous power after the picture point of neighboring area falls within retina, defines periphery defocusing amount when central pixel is fallen on retina at this time
Δ D < 0.
The term " refractive power " used in this application is measurement of the eyeglass for the refractive intensity size of light, " dioptric
Degree " is measurement to refractive power size, and diopter has just and has negative, and symbol is also involved in the comparison of size, such as D1=
10.0D, D2=15.0D, then D1 < D2；For D3=-10.0D, D4=-15.0D, then D3 > D4.
The term " optics area " used in this application refer to positioned at center of lens region have optical characteristics to
It can be realized the part for adjusting the major function of lens refractive power.
The term " radial direction " used in this application refers to the rectilinear direction from center of lens along radius or diameter.
The term " aperture " used in this application refers to the diameter of lens surface radial direction.
Used by the term " basic spherical surface " used in this application refers to the forward and backward surface with the optical section of eyeglass
Various face shapes the corresponding ideal spherical face with same curvature radial design value.It in this application, will for unified term
The ideal spherical face is collectively referred to as " basic spherical surface ".
The term " precipitous " used in this application and " flat " refer to the equivalent radius of curvature size degree to eyeglass
Description, for example, " more precipitous than spherical surface " refers to the absolute value comparative basis of the equivalent radius of curvature of eyeglass for the application
Smaller for the radius of curvature absolute value of spherical surface, " more flat than spherical surface " refers to the equivalent radius of curvature absolute value comparative basis of eyeglass
It is bigger for the radius of curvature absolute value of spherical surface.
As shown in Fig. 2, the preparation method of the controllable aspherical vision correction mirror of periphery defocus of the invention, it include such as
Lower step:
(1) by wearing the inspection of mirror periphery defocusing amount to human eye retina's shape or human eye naked eye periphery defocusing amount or human eye
It looks into, calculate and judges condition needed for human eye forms myopiaization defocus；
(2) condition obtained according to myopiaization defocus forms the refractive power of vision correction lens with the distribution of varying aperture
Scheme；
(3) according to the above-mentioned power profile scheme for obtaining vision correction lens, it is fabricated to vision correction mirror, rectifys eyesight
After telescope direct refractive power is attached to human eye, the power profile that whole eye ametropia force is formed on the retina is greater than center in neighboring area
Region, and before falling within retina, form Myopia defocus.
As shown in figure 3, B is retina in figure, C is the power profile curve that whole eye is formed on the retina in figure；Depending on
Nethike embrane shape, human eye naked eye periphery defocusing amount and human eye are worn mirror periphery defocusing amount and can be measured by examination equipment for eye.
Human eye retina's shape measures (such as Optical coherence topography OCT) by examination equipment for eye, ophthalmology detection
Retina is considered as spherical surface by equipment, then the shape of retina is measured with the radius of curvature of retina.
Human eye retina's shape by examination equipment for eye measure, examination equipment for eye retina is considered as it is aspherical, then
The shape of retina is measured with aspherical equivalent radius of curvature；The calculation method of aspherical equivalent radius of curvature is as follows:
Wherein, wherein dmTo measure aperture, M is aperture dmThe point at place, hmIt is for the rise of M point, i.e., aspherical in M point and top
Difference in height between point, rmFor the equivalent radius of curvature of M point.
The whole eye ametropia force that vision correction lens and human eye are formed, which is distributed, to be met:
The whole eye ametropia force distribution that vision correction lens and human eye are formed is Myopia relative to the shape of retina
Defocus then meets:
Wherein, DrFor refractive power of the whole eye when radius is r, D0For whole eye at small-bore (paraxial) refractive power, i.e., it is whole
The nominal value of eye ametropia force, r are the radius of retinal plane, and R is the radius of curvature or equivalent radius of curvature of retina.
Under the above conditions, the curve C in power profile such as Fig. 3 that whole eye is formed on the retina.It can be by non-
Spherical design makes the difference of lens edge refractive power and central optical power meet above-mentioned requirements.
According to the conditional relationship that obtained power profile meets, vision correction is fabricated to by aspheric design method
Mirror is distributed the refractive power of vision correction mirror eyeglass in myopiaization defocus in different pore size, i.e., refractive power increases with aperture increases
(as described in Figure 8) greatly.
Human eye naked eye periphery defocusing amount (Δ D1) can be measured by examination equipment for eye (such as OCT, corneal topographers,
Wavefront analyzer etc.), vision correction lens provide periphery defocusing amount (Δ D2)+human eye naked eye periphery defocusing amount (Δ D1) >=
When 0, human eye forms myopiaization periphery defocus.
What human eye can wear known diopter and power profile state tries eyeglass on, checks human eye in the case where wearing specular state
Mirror periphery defocusing amount (Δ D3) is worn, human eye is worn mirror periphery defocusing amount (Δ D3) and can be measured by examination equipment for eye；Work as human eye
When wearing mirror periphery defocusing amount (Δ D3) > 0, show the defocusing amount for trying piece eyeglass on met make human eye reach myopiaization periphery from
Burnt condition, can be fabricated to vision correction mirror with this；When human eye wears mirror periphery defocusing amount (Δ D3)≤0, show eyeglass
Defocusing amount still makes human eye be in the state of long sight periphery defocus, needs to increase the defocusing amount of eyeglass, and human eye is made to reach myopia
Change periphery defocus.
Lens periphery defocusing amount can be carried out according to the physiological condition of patient itself and the requirement to near-sighted controlling extent
It increases or reduces, reaches personalized vision correction.
According to the power profile scheme that step (2) obtains, vision correction mirror is fabricated to by aspheric design method, is made
The refractive power of vision correction mirror eyeglass is distributed in different pore size in myopiaization defocus, i.e., refractive power increases with aperture increases；Institute
State the expression formula of aspherical (as shown in figure 4, D is spherical curve in figure, E is aspheric curve in figure):
Wherein, Z (y) is the expression formula of the aspherical curve in YZ plane of vision correction mirror eyeglass, and c is optical section base
The inverse of plinth spherical face radius of curvature, y are vertical range of any point away from axis of abscissas (Z) on the curve, and Q is aspheric
Coefficient, A2iFor aspherical high-order coefficient, each point on the aspheric surface surrounds axis of abscissas (Z) by the curve negotiating
It carries out rotational symmetry variation and obtains；
Q value, each asphericity coefficient by adjusting vision correction mirror eyeglass, make the face shape of vision correction mirror eyeglass in radial direction
Different parts show as different equivalent curvature, realize that equivalent curvature uniformly, continuously changes in entire optics area, to make to regard
Power correcting lens have the refractive power being adapted with Myopia defocus power profile state, peripheral region under different apertures
Domain refractive power is greater than central area refractive power.
It is above-mentioned further include the control method of an aspheric surface, the control method is the ratio for passing through equivalent radius of curvature
(as shown in Figure 5) is described in example factor η, then has:
η is different pore size dm、dnUnder the ratio between r, m > n；
For spherical surface, then η=1；It is more aspherical than central flat for periphery, then η > 1；It is more precipitous than center for periphery
It is aspherical, then η < 1, aspherical under each aperture to design by the control of the scale factor to equivalent radius of curvature
Equivalent radius of curvature, and then make the requirement of the power profile satisfaction myopiaization periphery defocus of eyeglass.
It is indicated with the difference of the refractive power of the aerial different pore size of eyeglass:
ΔDM, n=Dm-Dn
In the case where indicating that aperture is respectively m and n, the difference of the refractive power of eyeglass, wherein m > n.
The present invention also provides a kind of aspherical vision correction mirrors, including vision correction mirror, the Ortho-K worn outside eye
And internal oculoscope, the aspherical vision correction mirror are made using the preparation method of aspherical vision correction mirror of the present invention
At.
The present invention also provides a kind of to control the diagnoses and treatment method increased with retarding myopia using Myopia periphery defocus,
The diagnoses and treatment method prepares aspherical in the preparation method by using aspherical vision correction mirror of the present invention
Vision correction mirror is realized.
Embodiment 1
In the present embodiment, the vision correction mirror is the vision correction mirror (such as frame eyeglasses) worn outside eye.
As shown in fig. 6, in the present embodiment, in addition to RGP, frame eyeglasses are existing test with mode other than, further include this hair
The preparation method of the controllable aspherical vision correction mirror of bright periphery defocus, it includes the following steps:
(1) by wearing the inspection of mirror periphery defocusing amount to human eye retina's shape or human eye naked eye periphery defocusing amount or human eye
It looks into, calculate and judges condition needed for human eye forms myopiaization defocus；
(2) condition obtained according to myopiaization defocus forms the refractive power of vision correction lens with the distribution of varying aperture
Scheme；
(3) according to the above-mentioned power profile scheme for obtaining vision correction lens, it is fabricated to vision correction mirror, rectifys eyesight
After telescope direct refractive power is attached to human eye, the power profile that whole eye ametropia force is formed on the retina is greater than center in neighboring area
Region, and before falling within retina, form Myopia defocus.
Other content is same as above, and i will not repeat them here.
Embodiment 2
In the present embodiment, the vision correction mirror is Ortho-K.
As shown in fig. 7, in the present embodiment, the basic design method of Ortho-K is identical as existing method, but base curve
The face shape in area is determined that calculating human eye retina according to the camber of retina needs power profile shape to be achieved by retina camber
State guarantees that the trend that the refractive power of human eye becomes larger as aperture becomes larger is greater than retina camber, forms long sight periphery defocus,
To prevent human eye's visual axis from extending, controls myopia and increase.According to the power profile of human eye, Ortho-K inner surface is carried out
The face shape in (base curve area) designs, and since the principle of moulding mirror is human eye after wearing moulding mirror, cornea shape becomes moulding mirror base
The shape in arc area, therefore the face shape of moulding Jing Jihuqu is the face shape that cornea realizes optical function.
Calculating human eye retina by the camber of retina needs power profile state to be achieved to use week of the invention
The preparation method of the controllable aspherical vision correction mirror of side defocus, it includes the following steps:
(1) by wearing the inspection of mirror periphery defocusing amount to human eye retina's shape or human eye naked eye periphery defocusing amount or human eye
It looks into, calculate and judges condition needed for human eye forms myopiaization defocus；
(2) condition obtained according to myopiaization defocus forms the refractive power of vision correction lens with the distribution of varying aperture
Scheme；
(3) according to the above-mentioned power profile scheme for obtaining vision correction lens, it is fabricated to vision correction mirror, rectifys eyesight
After telescope direct refractive power is attached to human eye, the power profile that whole eye ametropia force is formed on the retina is greater than center in neighboring area
Region, and before falling within retina, form Myopia defocus.
Other content is same as above, and i will not repeat them here.
Embodiment 3
In the present embodiment, the vision correction mirror is internal oculoscope.
Internal oculoscope refers mainly to have crystal eye intraocular lens (PIOL) for myopic refractive, and this PIOL is to pass through operation
Mode, being implanted between the cornea of human eye and crystalline lens with the eyeglass of negative degree, to correct the ametropia of human eye.
Internal oculoscope is divided into Intraocular lens and posterior chamber type according to the difference of implantation position, the general rear surface of the PIOL of Intraocular lens compared with
To be flat, front surface plays main dioptric；And the general front surface of PIOL of posterior chamber type is relatively flat, rear surface rises main
Dioptric effect also represents two kinds of more extreme and typical design directions of negative eyeglass.
Equally, through the invention the preparation method of the controllable aspherical vision correction mirror of periphery defocus, it includes as follows
Step:
(1) by wearing the inspection of mirror periphery defocusing amount to human eye retina's shape or human eye naked eye periphery defocusing amount or human eye
It looks into, calculate and judges condition needed for human eye forms myopiaization defocus；
(2) condition obtained according to myopiaization defocus forms the refractive power of vision correction lens with the distribution of varying aperture
Scheme；
(3) according to the above-mentioned power profile scheme for obtaining vision correction lens, it is fabricated to vision correction mirror, rectifys eyesight
After telescope direct refractive power is attached to human eye, the power profile that whole eye ametropia force is formed on the retina is greater than center in neighboring area
Region, and before falling within retina, form Myopia defocus.
Designed by aspherical face shape, using the face shape and radius of curvature in aspherical control lens optical area, make its
Radius of curvature is in even variation under different apertures, keeps it bigger than central optical power in the refractive power on periphery, power profile
The distribution that the long sight periphery defocus of even variation is presented, the myopia degree for controlling A nearsighted person are deepened.
Eyeglass those skilled in the art it is contemplated that can also using the combination of the different asphericity coefficients in aspherical formula come
Reach the purpose of the present invention.
Under mentality of designing of the invention, those skilled in the art are it is also contemplated that can pass through the periphery opposite with the present invention
Defocus controls thinking and diagnoses and treatment method, and human eye is made to reach long sight periphery defocus, thus increased by actively promoting axis oculi,
Treat long sight.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (13)
1. a kind of preparation method of the controllable aspherical vision correction mirror of periphery defocus, which is characterized in that it includes the following steps:
(1) it by wearing the inspection of mirror periphery defocusing amount to human eye retina's shape or human eye naked eye periphery defocusing amount or human eye, counts
It calculates and judges condition needed for human eye forms myopiaization defocus；
(2) condition obtained according to myopiaization defocus forms the refractive power of vision correction lens with the distribution scheme of varying aperture；
(3) according to the above-mentioned power profile scheme for obtaining vision correction lens, it is fabricated to vision correction mirror, makes vision correction mirror
After refractive power is attached to human eye, the power profile that whole eye ametropia force is formed on the retina is greater than center in neighboring area
Domain, and before falling within retina, form Myopia defocus.
2. the preparation method of aspherical vision correction mirror as described in claim 1, which is characterized in that in above-mentioned steps (1),
Human eye retina's shape is measured by examination equipment for eye, and retina is considered as spherical surface by examination equipment for eye, then with retina
The shape of radius of curvature measurement retina.
3. the preparation method of aspherical vision correction mirror as described in claim 1, which is characterized in that in above-mentioned steps (1),
Human eye retina's shape by examination equipment for eye measure, examination equipment for eye retina is considered as it is aspherical, then with aspherical
Equivalent radius of curvature measure retina shape；The calculation method of aspherical equivalent radius of curvature is as follows:
Wherein, wherein dmTo measure aperture, M is aperture dmThe point at place, hmFor the rise of M point, i.e., it is aspherical M point and vertex it
Between difference in height, rmFor the equivalent radius of curvature of M point.
4. the preparation method of aspherical vision correction mirror as described in any one of claims 1 to 3, which is characterized in that above-mentioned
In step (2), the whole eye ametropia force distribution that vision correction lens and human eye are formed is myopia relative to the shape of retina
Property defocus, meet:
Wherein, Dr is refractive power of the whole eye when radius is r, D0 be whole eye at small-bore (paraxial) refractive power, i.e., whole eye
The nominal value of refractive power, r are the radius of retinal plane, and R is the radius of curvature or equivalent radius of curvature of retina.
5. the preparation method of aspherical vision correction mirror as described in any one of claims 1 to 3, which is characterized in that retina
Shape measured by Optical coherence topography OCT.
6. the preparation method of aspherical vision correction mirror as described in claim 1, which is characterized in that in above-mentioned steps (1),
Human eye naked eye periphery defocusing amount (Δ D1) is measured by examination equipment for eye, in the periphery defocusing amount that vision correction lens provide
When (Δ D2)+human eye naked eye periphery defocusing amount (Δ D1) >=0, human eye forms myopiaization periphery defocus.
7. the preparation method of aspherical vision correction mirror as described in claim 1, which is characterized in that in above-mentioned steps (1),
What human eye wore known diopter and power profile state tries eyeglass on, checks that human eye wears mirror periphery defocus in the case where wearing specular state
It measures (Δ D3), human eye is worn mirror periphery defocusing amount (Δ D3) and measured by examination equipment for eye.
8. the preparation method of the aspherical vision correction mirror as described in claim 1,6 or 7, which is characterized in that when human eye wears mirror
When periphery defocusing amount (Δ D3) > 0, showing that the defocusing amount for trying piece eyeglass on has met makes human eye reach myopiaization periphery defocus
Condition.
9. the preparation method of the aspherical vision correction mirror as described in claim 1,6 or 7, which is characterized in that when human eye wears mirror
When periphery defocusing amount (Δ D3)≤0, shows that the defocusing amount of eyeglass still makes human eye be in the state of long sight periphery defocus, need
The defocusing amount for increasing eyeglass, makes human eye reach myopiaization periphery defocus.
10. the preparation method of the aspherical vision correction mirror as described in claim 1,6 or 7, which is characterized in that human eye naked eye week
Side defocusing amount (Δ D1), vision correction lens provide periphery defocusing amount (Δ D2), human eye wear mirror periphery defocusing amount (Δ D3) and
The distribution of periphery defocusing amount passes through Optical coherence topography OCT, corneal topographers, wavefront analyzer or anterior ocular segment
Analyzer measurement.
11. such as claims 1 to 3, the preparation method of 6,7 described in any item aspherical vision correction mirrors, which is characterized in that can
With the requirement according to the physiological condition of patient itself and to near-sighted controlling extent, carries out the increase of lens periphery defocusing amount or subtract
It is small, reach personalized vision correction.
12. such as claims 1 to 3, the preparation method of 6,7 described in any item aspherical vision correction mirrors, which is characterized in that
In above-mentioned steps (3), according to the power profile scheme that step (2) obtains, eyesight is fabricated to by aspheric design method and is rectified
Telescope direct, the aspherical expression formula:
Wherein, Z(y) be vision correction mirror eyeglass the aspherical curve in YZ plane expression formula, c be optical section foundation
The inverse of face surface curvature radius, y are vertical range of any point away from axis of abscissas (Z) on the curve, and Q is aspherical system
Number, A2i are aspherical high-order coefficient, and each point on the aspheric surface surrounds axis of abscissas (Z) by the curve negotiating
It carries out rotational symmetry variation and obtains；
Q value, each asphericity coefficient by adjusting vision correction mirror eyeglass, make the face shape of vision correction mirror eyeglass radially different
Position shows as different equivalent curvature, realizes that equivalent curvature uniformly, continuously changes in entire optics area, so that eyesight be made to rectify
Telescope direct eyeglass has the refractive power being adapted with Myopia defocus power profile state under different apertures, and neighboring area is bent
Luminous power is greater than central area refractive power；Equivalent radius of curvature passes through:
Description, wherein dmTo measure aperture, M is aperture dmThe point at place, hmFor the rise of M point, i.e., it is aspherical M point and vertex it
Between difference in height, rmFor the equivalent radius of curvature of M point.
13. a kind of aspherical vision correction mirror, special including vision correction mirror, Ortho-K or the internal oculoscope worn outside eye
Sign is that the aspherical vision correction mirror is come using the preparation method of aspherical vision correction mirror as described in claim 1
It is made.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510440964.2A CN106291976B (en) | 2015-07-24 | 2015-07-24 | A kind of preparation method for the aspherical vision correction mirror that periphery defocus is controllable |
| KR1020187005094A KR102226668B1 (en) | 2015-07-24 | 2016-07-22 | Vision correction lenses and methods of making such lenses |
| US15/746,748 US10551636B2 (en) | 2015-07-24 | 2016-07-22 | Vision correction lens and method for preparation of the same |
| SG11201800595QA SG11201800595QA (en) | 2015-07-24 | 2016-07-22 | Vision correction lens and method for preparation of the same |
| EP16829806.5A EP3349055A4 (en) | 2015-07-24 | 2016-07-22 | Vision correction lenses and preparation method therefor |
| JP2018522844A JP6931349B2 (en) | 2015-07-24 | 2016-07-22 | How to make a vision correction lens and a vision correction lens |
| PCT/CN2016/090955 WO2017016440A1 (en) | 2015-07-24 | 2016-07-22 | Vision correction lenses and preparation method therefor |
| HK18109669.1A HK1250262A1 (en) | 2015-07-24 | 2018-07-26 | Vision correction lenses and preparation method therefor |
| US16/712,377 US11385479B2 (en) | 2015-07-24 | 2019-12-12 | Vision correction lens and method for preparation of the same |
| JP2021017580A JP2021099493A (en) | 2015-07-24 | 2021-02-05 | Vision correction lens and production method for vision correction lens |
| US17/834,139 US20220317478A1 (en) | 2015-07-24 | 2022-06-07 | Vision correction lens and method for preparation of the same |
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| CN201510440964.2A CN106291976B (en) | 2015-07-24 | 2015-07-24 | A kind of preparation method for the aspherical vision correction mirror that periphery defocus is controllable |
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