A kind of optical treatment system for human eye
Technical field
The present invention relates to optical treatment system technical field, in particular to a kind of optical treatment system for human eye.
Background technique
Retina is the innermost layer in eyeball, and is the ground assembled by the lens optical imagery generated of the eyes
Side.Information from image is transformed into nerve impulse, and then these nerve impulses are transmitted to brain via optic nerve.According to
" defocus theory ", according to dioptrics concept, will generate if the synthesis focus of the opticator of retina and glasses is inconsistent
" defocus ", focus fall in person before retina and are referred to as preceding defocus (i.e. long sight defocus), fall in person behind retina and be referred to as
Defocus (i.e. myopiaization defocus) afterwards.Research confirm, for non-presbyopic crowd, eyeball extend rely on retinal periphery from
Coke, the retinal periphery of myopia are in rear defocus (myopiaization), and defocus (i.e. myopiaization defocus) is to promote after this retinal periphery
The main reason for being continuously increased into myopia degree;Similarly, the retinal periphery of farsightedness is in preceding defocus (long sight), this view
Defocus (i.e. long sight defocus) is the main reason for promoting farsightedness degree to be continuously increased before nethike embrane periphery.
Referring to Fig.1, when naked eye, for myopia, the light shafts 11 that target reflects pass through the folding of eyeball optics system
It penetrating and focal imaging is in the B point position in the front in retinal centre region 12, people can only see a fuzzy target image, depending on
Nethike embrane neighboring area 13 obtains a preceding out-of-focus image.
Referring to Fig. 2, when naked eye, for farsightedness, the optical beam 21 that target reflects passes through the folding of eyeball optics system
It penetrating and focal imaging is in the B ` point position at the rear in retinal centre region 22, people can only see a fuzzy target image,
Out-of-focus image after retinal periphery region 23 obtains one.
There are emmetropization mechanism by human eye, i.e., eyeball, which has, relies on retinal periphery regional imaging induction eyeball development
Feature, especially under-18s teenager, if retinal periphery regional imaging is rear out-of-focus image, bulbous length will just prolong
Long, if retinal periphery regional imaging is preceding out-of-focus image, eyeball will just stop extending, thus when naked eye the myopia of people or
Long sight can deepen accordingly, it is therefore desirable to wear corresponding eyes and be corrected.It is conventionally used to the eye for the treatment of myopia or long sight
Mirror is all single vision lenses only with a diopter, and for the design principle of eyeglass, the optical imaging designs of eyeglass are still
It completes in the plane, referring to Fig. 3, monochromatic light spectacles 37 is worn for A nearsighted person, in addition to (target 33 refers to target 33
It is the object that human eye needs to form it on retinal centre region 31 clear image) passing through the imaging of eyeglass center portion just
It falls in well on retinal centre region 31 and is formed clearly as 34, the object 35 on 33 periphery of target passes through monochromatic light spectacles 37
Imaging falls in retinal periphery region 32, if the object 35 on this 33 periphery of target is located at closer proximity than target 33,
After its imaging 36 still falls within retina 3, the defocus (i.e. myopiaization defocus) after retinal periphery region 32 generates, due to just
Exist depending on change mechanism, so that eyeball be promoted to grow, causes cornea curvature to increase, lens thickness increases, intensification myopia.Reference
Fig. 4 wears long sight monochromatic light glasses 47 for farsighted person, in addition to target 43 just falls in view by the imaging of eyeglass center portion
It is formed on nethike embrane middle section 41 clearly as 44, the object 45 on 43 periphery of target is located at farther position than target, then target
Before the object 45 on 43 peripheries still falls within retina 4 by the imaging 46 of monochromatic light spectacles for long sight 47, in retinal periphery region
42 form preceding defocus, since emmetropization mechanism exists, so that eyeball be inhibited to grow, cause the decline of cornea curvature, crystalline lens thick
Degree reduces, and deepens long sight.
In addition to traditional single vision lenses, there is also a kind of optical therapeutic systems with more diopter lens in the prior art
System, the optical treatment system disclose a kind of system for treating the refractive disorder ixi in human eye, including primary optical zones
With the Fresnel type concentric multi-focus lens of secondary optical zone, wherein the primary optical zones have main diopter, the auxiliary
Optical region has at least one secondary refractive power, wherein using the main diopter correction ametropia and utilizing described auxiliary
It helps diopter to generate at least one and defocuses (term " defocus " in the corresponding this patent of term used in the technology " defocusing ").It should
The diopter symbol of lens structure disclosed in technology, primary optical zones and secondary optical zone eyeglass is all identical (optics
In, object point and picture point become a pair of of conjugate point, and for lens, it is to claim lens with positive that a pair of of conjugate point, which is distributed in lens two sides,
Diopter claims lens to have negative diopter when a pair of of conjugate point is distributed in lens the same side.Such as: it is used for nearsighted eyeglass
Concavees lens there is negative diopter, the convex lens for Farsighted lens has positive diopter).
The optical treatment system for human eye provided in above-mentioned technology is analyzed, primary optical zones are for regarding target
Blur-free imaging on nethike embrane, and introduced by secondary optical zone using the object on target periphery as " defocus " image, for promoting
Or inhibit eyeball growth.But in the optical treatment system for human eye that provides of above-mentioned technology, the introducing that uses " from
The optical texture Shortcomings of coke " image, although eyes can be alleviated to a certain extent using the method that above-mentioned technology provides
Diopter it is abnormal, but its physiological property for still failing to combine the curved architectural characteristic of retina and people's eyeball development is real
Existing optimal therapeutic effect.
Summary of the invention
To solve the above problems, being designed to provide for the embodiment of the present invention is a kind of clear by target using main dioptric region
Imaging on the retina, and using auxiliary dioptric region by reinforce before defocus inhibit eyeball development to offset myopia development with
And eyeball development is promoted to deepen to offset long sight by defocus after reinforcing, and the spy strong according to teenager's eyeball plasticity
Point, the position of preceding out-of-focus image and rear out-of-focus image that rationally control auxiliary dioptric region is formed, to realize eyeball to dioptric just
A kind of optical treatment system for human eye that the side often developed is grown up.
Technical solution used by the present invention solves the problems, such as it is:
A kind of optical treatment system for human eye, including the Fresnel type comprising primary optical zones and secondary optical zone
Concentric multi-focal lens, wherein the primary optical zones have the main diopter for correcting diopter exception, the auxiliary dioptric
Region has at least one secondary refractive power for generating at least one defocus, and the Fresnel type concentric multi-focal lens are for drawing
Enter the image focused on the retina of human eye and introduces an out-of-focus image in a superimposed manner simultaneously;The main dioptric
The main diopter in region is opposite with the auxiliary secondary refractive power symbol in dioptric region.
Further, the ametropia in human eye includes myopia, then the diopter of the primary optical zones is negative value,
Light shafts for reflecting target focus on the retina of human eye with myopia correction, the diopter of the secondary optical zone
For positive value, the light shafts for reflecting target periphery object focus on before the retina with generate before at least one from
Coke, the front of imaging point position of the target in human eye when the preceding defocus is located at naked eye;
Or the ametropia in human eye includes long sight, then the diopter of the primary optical zones is positive value, is used for
The light shafts that target reflects are focused on to correct long sight on the retina of human eye, the diopter of the secondary optical zone is negative
Value, the light shafts for reflecting target periphery object generate at least one rear defocus after focusing on the retina, described
The rear of target imaging point position in human eye when defocus is located at naked eye afterwards.
Further, the Fresnel type concentric multi-focal lens be Fresnel concentric bi-focal with generate it is described at least one
Out-of-focus image.
Further, the Fresnel type concentric multi-focal lens generate at least two out-of-focus images.
Further, the Fresnel type concentric multi-focal lens include any form in following: glasses, glasses accessories,
Contact lenses and eye implantation.
The beneficial effects of the present invention are: leading to the embodiment provides a kind of optical treatment system for human eye
It crosses primary optical zones and focuses on the light shafts that target reflects on the retina of human eye and form one clearly as with myopia correction
Or long sight, while by secondary optical zone by around target object reflection light shafts focus on human eye retina before
Side or rear one form preceding defocus, and perhaps rear defocus inhibits perhaps to promote the growth of eyeball to slow down myopia or long sight
Intensification.Particularly, the feature strong according to the plasticity of emmetropization mechanism and teenager's eyeball, Design assistant optical region
The diopter of diopter and firmly optical region is distinct symbols.When corresponding to treatment myopia, the object reflection light on target periphery
Front of the beam via secondary optical zone target imaging position when naked eye in eyeball, the preceding defocus journey that secondary optical zone generates
It is more serious to spend the preceding defocus degree that generates when compared to naked eye, according to emmetropization mechanism, retinal periphery regional imaging is at this time
The forward preceding defocus of the imaging to double, the inhibition level that eyeball growth is subject to is deeper, and myopia is contained faster, therapeutic effect
More preferably.When corresponding to treatment long sight, the object reflected light harness on target periphery is via secondary optical zone in eyeball when naked eye
The rear of target imaging position, the rear defocus degree generated when the rear defocus degree that secondary optical zone generates is compared to naked eye is more
Seriously, according to emmetropization mechanism, retinal periphery regional imaging is the rear defocus of the imaging that doubles backward at this time, and eyeball is raw
Long obtained promotion doubles, and long sight is contained that faster, therapeutic effect is more preferable.
Detailed description of the invention
The invention will be further described with example with reference to the accompanying drawing.
Target imaging position schematic diagram in eyeball when Fig. 1 A nearsighted person's naked eye;
Target imaging position schematic diagram in eyeball when Fig. 2 farsighted person's naked eye;
Fig. 3 is diagram when A nearsighted person wears monochromatic light spectacles;
Fig. 4 is the diagrams that farsighted person wears that monochromatic light spectacles for long sight are;
Fig. 5 is the cross-sectional view of Fresnel type concentric bi-focal or multi-focus lens used in practice of the invention;
Fig. 6 is the rearview of the Fresnel type concentric bi-focal or multi-focus lens in Fig. 5;
Fig. 7 is the diagram of the myopia according to an embodiment of the present invention equipped with concentric bi-focal;
Fig. 8 is the diagram of the farsightedness according to an embodiment of the present invention equipped with concentric bi-focal;
Fig. 9 is the diagram of the myopia according to an embodiment of the present invention equipped with concentric multi-focal lens;
Figure 10 is the diagram of the farsightedness according to an embodiment of the present invention equipped with concentric multi-focal lens.
Specific embodiment
The present invention relates to a kind of optical treatment systems, particularly, the embodiment of the invention provides one kind by reinforce before from
Coke is come target imaging point position when offsetting the optical treatment system of development of myopia, and the preceding defocus being imaged in patient's naked eye
Front, using the strong physilogical characteristics of teenager's eyeball controllability, before reinforcing defocus to the stimulation in retinal periphery region in turn
The emmetropization mechanism for enhancing human body, promotes the recovery of A nearsighted person.Meanwhile the present invention also provides one kind to pass through defocus after reinforcing
Offset the optical treatment system of development of hyperopia, and will rear defocus imaging with behind target imaging point position when patient's naked eye
Side, using the strong physilogical characteristics of teenager's eyeball controllability, stimulation and then increasing of the defocus to retinal periphery region after reinforcement
The emmetropization mechanism of strong man's body, promotes the recovery of farsighted person.
In the optical system of glasses, artificially generating defocus can be introduced by mode desired by a variety of patients, example
Such as by way of glasses, glasses accessories, contact lenses, reshape the cornea, eye implantation.Preferably, it is risen in conjunction with traditional correction
This defocus is introduced, in order to maintaining normal eyesight during the entire course for the treatment of.This means that the light that target reflects
Harness is focused onto macula and forms clearly image, while one or more out-of-focus images being introduced to the optics of eyes
In system.
Disclosed optical treatment system according to embodiments of the present invention, introduces at least one target periphery object in a manner of superposition
The focusedimage of the out-of-focus image of body and a target.For example, by concentric Fresnel type bifocal as described in Fig. 5-Figure 10 or
The focusing of multi-focus lens, diffractive multi-focal lens and its derivatives, the defocus and target of target periphery object can be drawn simultaneously
Enter.
Referring now to Fig. 5 and Fig. 6, there shown is used Fresnel type concentric bi-focals in the practice of the invention
Or multi-focus lens, the eyeglass have the concentric optic zones 51 and 52 of alternate at least two diopter, manufacture Fresnel type is same
The general fashion of heart bifocal lenses is to make the surface having there are two radius of curvature, and two have different curvature radius
Surface generate positive diopter and negative diopter respectively, region 62 with positive diopter and with negative diopter
Region 61 is alternately present in concentric fashion.As a result, paraxial rays and marginal ray share two public focus.
Fig. 7 indicates the myopia for being furnished with Fresnel type concentric bi-focal 73 according to the present invention, wherein eyeglass, which has, to be used
Come the main diopter of myopia correction and the secondary refractive power for defocus before introducing, the main diopter is negative value, numerical value with
A nearsighted person wear monochromatic light spectacles numerical value it is identical, for changing target reflection light 75 in intraocular light
Road, point B when by the position of target imaging from naked eye are elapsed backward to retinal centre region 71, are formed clearly as making myopia
Patient can normally regard object;The secondary refractive power is positive value, and numerical value is between+1.5D to+3.0D, for changing target week
The light 74 of the object reflection on side is attached from naked eye time point B location by the image objects position on target periphery in intraocular optical path
Closely be pulled along and fall in D point, and when retinal periphery region 72 forms and compares naked eye stronger amplitude preceding defocus, reinforce facing
Change machining function.The light 75 for being incident on the optical region with main diopter is focused on retinal centre region 71, and
And generate the clear image of target.In the prior art, with more diopter lens optical treatment system, secondary refractive power and
Main diopter symbol is identical, i.e., for treatment myopia, the image that the optical region with secondary refractive power generates is located at
Target imaging position rear in eyeball when naked eye, and be located in front of retina, therefore it has the light of auxiliary secondary refractive power
The preceding defocus that eyeball generates when the preceding defocus that school district domain generates in retinal periphery region is compared to naked eye is to emmetropization mechanism
Stimulation is all slightly weak, and therapeutic effect is undesirable.And the scheme opposite the present invention is to provide secondary refractive power and main diopter symbol,
It is incident on the point D that the light 74 of the optical region with secondary refractive power is focused on before retina 7, which is located at eye
The front of target imaging position B point when ball naked eye, and preceding defocus is generated in retinal periphery region 72.When A nearsighted person utilizes
When eyeglass removes object observing, preceding defocus prevents eye growth or elongation.So the myopia development in myopia is alleviated, due to tool
The front for the image position B point in target imaging position when naked eye for thering is the optical region of secondary refractive power to generate, therefore in retina week
The preceding defocus that border region 72 generates is stronger to the stimulation of emmetropization mechanism, accelerates the process of emmetropization.
Fig. 8 shows the farsightedness for being furnished with Fresnel type concentric bi-focal 83, and wherein eyeglass, which has, is used to correct long sight
Main diopter and secondary refractive power for defocus after introducing, the main diopter are positive value, and numerical value and farsighted person wear
Monochromatic light spectacles for long sight numerical value it is identical, for changing target reflection light 85 in intraocular optical path, by target imaging
Point B ` when position is from naked eye is pulled to forward retinal centre region 81, is formed clearly as regarding farsighted person normally
Object;The secondary refractive power is negative value, and numerical value reflects between -1.5D to -3.0D for changing the object on target periphery
Light 84 in intraocular optical path, by the image objects position on target periphery near the position naked eye time point B ` backward passage fall
The rear defocus of stronger amplitude is formed in D ` point, and in retinal periphery region 82, reinforces emmetropization machining function.Being incident on has
The light 85 of the optical region of main diopter is focused on retinal centre region 81, and generates the clear image of target.It is existing
Have in technology, with more diopter lens optical treatment system, secondary refractive power is identical with main diopter symbol, i.e., for
For treating long sight, target imaging position in eyeball when the image that the optical region with secondary refractive power generates is located at naked eye
Front, and it is located at retina rear, therefore its optical region with secondary refractive power generates in retinal periphery region
The rear defocus that generates is all slightly weak to the stimulation of emmetropization mechanism when defocus is compared to naked eye afterwards, and therapeutic effect is undesirable.Meanwhile entering
It is mapped on the point D ` that the light 84 of the optical region with secondary refractive power is focused on after retina 8, which is located at eye
The rear of target imaging location point B ` when ball naked eye, and the defocus after retinal periphery region 82 generates.When farsighted person's benefit
When removing object observing with eyeglass, rear defocus promotes eye growth or elongation.So the long sight intensification in farsightedness is alleviated, due to
The rear for image position target imaging location point B ` when naked eye that optical region with secondary refractive power generates, therefore in retina
The rear defocus that neighboring area 82 generates is stronger to the stimulation of emmetropization, accelerates emmetropization process.
Fresnel type concentric multi-focal lens are the derivatives of Fresnel type concentric bi-focal.It has be alternately present it is more
In the concentric optic zones of two diopters.Main diopter correction refractive error, and multiple secondary refractive power is introduced for treating
Optical defocus.This can be realized by the minor variations in the radius of curvature of secondary optical zone.
Fig. 9 indicates the myopia for being furnished with Fresnel type concentric multi-focal lens 93 according to the present invention, and being incident on has main bend
The light 94 of the optical region of luminosity is focused on retinal centre region 91, and generates the clear image of target.Simultaneously
It is incident on point E, the point F that other light 95 of the optical region with secondary refractive power are focused on before retina 9, and
When these points E, point F are respectively positioned on naked eye in eyeball target imaging location point B front, and retinal periphery region 92 generate
Multiple preceding defocus with different amplitudes.The main diopter is negative value, the monochromatic light myopia that numerical value and A nearsighted person wear
The numerical value of mirror is identical, for changing target reflection light 94 in intraocular optical path, by the position of target imaging from naked eye
When point B elapsed backward to retinal centre region 91, formed clearly as alloing A nearsighted person normally to regard object;It is the multiple
Secondary refractive power is positive value, and numerical value is between+1.5D to+3.0D, for changing the light of the object reflection on target periphery
95 be pulled along near naked eye time point B location in intraocular optical path, by the image objects position on target periphery fall in E point and
F point, and when retinal periphery region 92 forms and compares naked eye stronger amplitude preceding defocus, reinforce emmetropization machining function.When
When A nearsighted person removes object observing using eyeglass, the image position generated due to the optical region with secondary refractive power mesh when the naked eye
The front of imaging position point B is marked, therefore stronger to the stimulation of emmetropization in the preceding defocus that retinal periphery region 92 generates,
Accelerate emmetropization process.So the myopia development in myopia is reduced, stops or reversed.
Figure 10 indicates the farsightedness of the Fresnel type concentric multi-focal lens 103 with good grounds invention, and being incident on has main bend
The light 104 of the optical region of luminosity is focused on retinal centre region 101, and generates the clear image of target.Together
When, it is incident on point E `, the point F ` that the light 105 of the optical region with secondary refractive power is focused on after retina 100,
And the rear of these points E `, point F ` target imaging location point B ` in eyeball when being respectively positioned on naked eye, and in peripheral retinal region
Domain 102 generates the multiple rear defocus with different amplitudes.The main diopter is positive value, the list that numerical value and farsighted person wear
The numerical value of light spectacles for long sight is identical, for changing target reflection light 104 in intraocular optical path, by the position of target imaging
Point B ` when from naked eye is pulled to forward retinal centre region 101, is formed clearly as alloing farsighted person normally to regard object;
The secondary refractive power is negative value, and numerical value between -3.0D, is reflected for changing the object on target periphery in -1.5D
Light 105 is in intraocular optical path, and by the image objects position on target periphery, passage is fallen backward near the position naked eye time point B `
The rear defocus of stronger amplitude is formed in E ` point and F ` point, and in retinal periphery region 102, reinforces emmetropization machining function.When
When farsighted person removes object observing using eyeglass, the image position generated due to the optical region with secondary refractive power mesh when the naked eye
The rear of imaging position point B ` is marked, therefore the stimulation of emmetropization is more reinforced in the rear defocus that retinal periphery region 102 generates
It is strong, accelerate emmetropization process.So the long sight intensification in farsightedness is reduced, stops or reversed.
The above, only presently preferred embodiments of the present invention, the invention is not limited to above embodiment, as long as
It reaches technical effect of the invention with identical means, all should belong to protection scope of the present invention.