CN1032460A - The contact lenses that a kind of correction of refractive errors is used - Google Patents

The contact lenses that a kind of correction of refractive errors is used Download PDF

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Publication number
CN1032460A
CN1032460A CN88107280A CN88107280A CN1032460A CN 1032460 A CN1032460 A CN 1032460A CN 88107280 A CN88107280 A CN 88107280A CN 88107280 A CN88107280 A CN 88107280A CN 1032460 A CN1032460 A CN 1032460A
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CN
China
Prior art keywords
support component
contact lenses
right cylinder
radius
curvature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN88107280A
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Chinese (zh)
Inventor
苏亚托斯洛夫·尼古拉维奇·菲多洛夫
维克多·库斯坦丁洛维奇·卓娅
伊莱洛里·罗列多夫娜·图麦尼娜
弗拉基米尔·葛里高里维奇·卡施莱夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEZHOTRASLEVOI NAUCHNO-TEKHNICHESKY KOMPLEX "MIKROKHIRURGIA GLAZA"
Original Assignee
MEZHOTRASLEVOI NAUCHNO-TEKHNICHESKY KOMPLEX "MIKROKHIRURGIA GLAZA"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MEZHOTRASLEVOI NAUCHNO-TEKHNICHESKY KOMPLEX "MIKROKHIRURGIA GLAZA" filed Critical MEZHOTRASLEVOI NAUCHNO-TEKHNICHESKY KOMPLEX "MIKROKHIRURGIA GLAZA"
Publication of CN1032460A publication Critical patent/CN1032460A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1602—Corrective lenses for use in addition to the natural lenses of the eyes or for pseudo-phakic eyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1602—Corrective lenses for use in addition to the natural lenses of the eyes or for pseudo-phakic eyes
    • A61F2/1605—Anterior chamber lenses for use in addition to the natural lenses of the eyes, e.g. iris fixated, iris floating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics

Abstract

A kind of contact lenses, it comprises opticator (1) and support component (2,3).Opticator (1) is made the form of right cylinder (4), and the diameter of its diameter and eyeball central optical zone adapts, and has outside chimb (5).Two end faces (6,7) of right cylinder (4) are sphere.Support component (2,3) is made two segment forms of radially settling, and is the extension of sphere (7).

Description

The contact lenses that a kind of correction of refractive errors is used
The invention belongs to the ophthalmology medical domain, or rather, is the contact lenses that a kind of correction of refractive errors is used.
The present invention can be used for correcting any type of ametropia: myopia, long sight and astigmatism.
The contact lenses that known a kind of correction of refractive errors is used comprise opticator and some support components, be used for being placed among the anterior chamber of eyes (referring to " Ophtalmology " magazine, 1982,8, p.148, model 20,20A).In the glasses of this structure, opticator is discoidal, and support component be shaped as curve tortuous bow shape, manufacture by resilient material.When settling this known contact lenses, its support component props up on patient's anterior chamber angle, be a kind of traumatic allocation method, this is because the support component of glasses contacts with the funiculus lateralis cartilage area at corneal epithelium and anterior chamber of eyeball angle, can cause the generation of atrophoderma in the corneal epithelium one.
The known contact lenses that also have a kind of correction of refractive errors to use, it comprises and is used for opticator and some support components being placed in the back room of eyes, is placed directly in the preceding capsule of eyeball natural lens (referring to U.S. Pat-A, 4,585,456).
In this known contact lenses, opticator is discoidal, and thickness is less than the degree of depth of posterior chamber of eyeball, and a surface of disk is suitable for interacting with intraocular lens's front surface; Support component is manufactured by resilient material, makes the shape of the curve tortuous bow shape of radially settling.But, whole contact lenses are planted in the back room of people's eyeball, it is placed on the front surface of natural lens, and support component is propped up in the back room angle, the cracking of capsule before the postoperative stage may cause off-centre, bedsore and the natural lens of contact lenses.
Putting forward as basis of the present invention of task, it is the structure that to improve the contact lenses that myopia correction uses, so that avoid eccentric possibility occurring at the after-stage glasses of performing the operation, simultaneously also will be by reducing contact lenses make operation after-stage complication to the wound of eyeball tissue percent decline.
The method that solves this task is: in the contact lenses that the correction of refractive errors that includes opticator and some support components is used, according to the present invention is that opticator is made cylindrical form, the outside chimb that ring-type is arranged on the circumference of one of its both ends of the surface, the diameter of cylindrical diameter and eyeball central optical zone adapts, and it highly surpasses the degree of depth of posterior chamber of eyeball; The end face of band chimb is a sphere, and its radius-of-curvature is wanted the ametropic condition of collateral security rectification eyeball to set out to select; Its second end face is similarly sphere, and its radius-of-curvature is corresponding with the radius-of-curvature of natural lens front surface.In this case, support component will be made two segments of radially settling, and protrudes outside the sphere scope of second end face of right cylinder and as the extension of this sphere.
The optimal practice is the end face that right cylinder has an annular rim to be made the radius-of-curvature that includes a section can select from the condition of correcting eye astigmatism.
Preferably opticator and support component are made unified whole form.
The circle diameter that limits support component is generally 10～10.5 millimeters; With respect to the diameter that limits the support component periphery, the diameter of the outside chimb of ring-type is between 0.38～0.59 scope, and its thickness is 0.1～0.11; Cylindrical height is between 0.03～0.05; The thickness of support component is between 0.01～0.05; And the radius-of-curvature of second end face of right cylinder is 1.0～1.1 times of qualification support component periphery diameter.
The contact lenses of making according to the present invention, can avoid occurring eccentric possibility, because having the eyeglass of support component partly is placed in the posterior chamber of eyeball, and meanwhile as the optical surface of the end face-work usefulness that has ring-type outside chimb, drop in the eyeball lesser ring of Merkel.The contact lenses of this structure can be avoided forming bedsore and make the preceding capsule of natural lens the danger of cracking occur, thereby just can guarantee at the operation after-stage wound rate to be reduced.
The present invention subsequently will be illustrated by specific embodiment and accompanying drawing, wherein
Fig. 1 represents the contact lenses top view that correction of refractive errors of the present invention is used;
Fig. 2 is identical with Fig. 1, is its profile cut-open view;
Fig. 3 is the eyeball schematic drawing of the contact lenses having implanted correction of refractive errors of the present invention and use.
Be used for the contact lenses that correction of refractive errors is used, as Fig. 1,2  chaste tree  ü shelf Р chaff and support component 2,3.Opticator 1 is made the form of right cylinder 4, and the outside chimb 5 of ring-type is arranged on the periphery of one of its end face, and sphere is made on its surface 6, and is the optics working surface of contact lenses.The radius of curvature R of working surface 6 is wanted the ametropic condition of collateral security rectification eyeball to set out and is selected.The diameter d of right cylinder 4 will adapt with the diameter of eyeball central optical zone, and the height h of right cylinder 4 surpasses the degree of depth of posterior chamber of eyeball.Another end face 7 of right cylinder 4 is made sphere, its radius of curvature R equally 1Corresponding with the radius-of-curvature of natural lens front surface.Support component 2,3 is made two segment forms of radially settling, and protrudes outside the scope of sphere 7 and as the extension of this sphere.
Limiting the circle diameter D of support component 2,3, is by the fixing a of natural lens 8, and the distance between 2 of the b determines, and chooses D＜ab.
Support component 2,3 also can be made the discrete form of part in addition, in the process of making contact lenses they and opticator 1 is fixed together then.
Support component 2,3 also can be made unified whole form with opticator 1, can by optically transparent bio-inert material for example silicone manufacture.
The contact lenses of manufacturing according to the present invention are symmetrical with respect to the turning axle of right cylinder 4.
Sphere working surface 6 can be the sphere of variable curvature, and the radius-of-curvature that manufacture on wherein a part of surface is the selection of setting out of the condition of collateral security astigmatism; And the radius-of-curvature of surface 6 remainder meanwhile is the selection of setting out of condition that eyeball myopia or long sight are corrected in collateral security.
The circle diameter D that limits support component 2,3 elects 10～10.5 millimeters usually as.At this moment the outside diameter d of chimb 5 1Be between the scope of (0.38～0.59) D, the thickness of chimb 5 is between (0.1～0.11) D; The height h of right cylinder 4 is between (0.03～0.05); The thickness of support component 2,3 is (0.01 *～0.05) between the D, and the radius of curvature R on surface 7 1Be in (1.0～1.1) D scope.
Lot of experiment results shows, if select also lowlyer than the low value of listed scope among the present invention, just might implant the eyeball backward dislocation at contact lenses to the parameter of contact lenses.
If select more tallerly, just might cause the danger of wound to the parameter of contact lenses at contact lenses eyeball tissue all around than the high value of listed scope among the present invention.
Contact lenses of the present invention can be implanted in the eyeball in the following manner.
Under local anaesthesia, contact lenses are put into eyeball by the otch at corneal limbus place, so that support component 2,3 can pass pupil is placed in natural lens 8(Fig. 3) front surface on, the optics working surface 6 that has chimb 5 is then stayed in anterior chamber of eyeball's the lesser ring of Merkel.
Then with myometrial suture 2 to 3 pins.Because being the diameters with the eyeball central optical zone, the diameter d of right cylinder 4 adapts, and the external diameter of chimb 5 is bigger than the diameter of eyeball central optical zone, and the height h of right cylinder 4 surpasses the degree of depth of posterior chamber of eyeball, so contact lenses of the present invention can be placed in the light shaft coaxle with eyeball, at this moment can avoid making it eccentric possibility to occur.Because end face 7 is made sphere, its radius of curvature R 1Adapt with the radius-of-curvature of natural lens 8 front surfaces, and diameter D＜ab, so the arrangement of contact lenses is flexible,
*, original text is 0.1, doubting is 0.01 mistake-school notes.
Thereby just can avoid support component 2,3 to make natural lens front surface tissue and bearing thereof the possibility of wound occur.
Be the object lesson of implanting contact lenses of the present invention below:
Example 1.
Patient K, 32 years old, right eye was diagnosed as high myopia when being admitted to hospital.Eyesight is OD=0.01; Wear mirror C φ .-17, eyesight is OD=0.4; The retina eyesight is 0.8～1.0.Undergo surgery: implant the corresponding dioptric contact lenses of the present invention that are fit to this concrete patient, its parameter is as follows: diameter D=10.5 millimeter; Diameter d 1=0.38D; Chimb thickness equals 0.1D, height h=0.03D; The thickness of support component 2,3 is 0.01D, and radius of curvature R 1=D.
Postoperative does not develop complications.
Left hospital back the 3rd day, the eyesight that does not add rectification is OD=0.7, and the 7th day is 0.8～1.0.The eyeball calmness, the lens correct position, natural lens is transparent.The eyesight that does not add rectification after 1 year is OD=0.8～1.0.
Example 2.
Patient B, 41 years old, be diagnosed as hyperpresbyopia, eyesight is OD=0.06, wears mirror C φ, and+9 back eyesights are OD=0.3, and the retina eyesight is 0.5～0.63
Undergo surgery: implantation is suitable for the dioptric contact lenses of the present invention of this patient, and its lens parameters is: diameter D=10.5 millimeter; d 1=0.45D; Chimb 5 thickness are 0.06D; Height h=0.04D; The thickness of support component 2,3 is 0.03D, and radius R 1=1.1D.The postoperative stage does not develop complications.The Shi Weijia that leaves hospital corrects view OD=0.3.Observing the eyesight that does not add rectification after 8 months is OD=0.5～0.6, the eyeball calmness, and the lens correct position, natural lens is transparent.
Example 3
Patient H 29 years old, is diagnosed as high myopia, the myopia astigmatism.Eyesight is OS=0.01 before the operation, wears mirror C φ .-14, the OD cylinder.-4,0, the axle 5 ° after, eyesight OD=0.3, the retina eyesight is 0.63.
Undergo surgery: implant corresponding dioptric contact lenses of the present invention, its lens parameters is: diameter D=10 millimeter; Diameter d 1=0.45D; Chimb thickness is 0.06D; H=0.04D; The thickness of support component 2,3 is 0.03D, and radius R 1=1.1D.The postoperative stage does not develop complications.The eyesight that the Shi Weijia that leaves hospital corrects is OD=0.4～0.5.Observing the eyesight that does not add rectification after 8 months is OD=0.69.Eyeball is steady, and lens position is correct, and natural lens is transparent.
In 30 examples implanting contact lenses, never observe complication on eyeglass both sides and surrounding tissue thereof.

Claims (4)

1, the contact lenses used of a kind of correction of refractive errors, comprise opticator (1) and support component (2,3), it is characterized in that: opticator (1) is made the form of right cylinder (4), the outside chimb (5) that ring-type is arranged on the periphery of one of its end face, the diameter of right cylinder (4) and the diameter of eyeball central optical zone adapt, and the height of right cylinder (4) surpasses the degree of depth of posterior chamber of eyeball; The end face (6) of band chimb (5) be a sphere, and its radius-of-curvature is wanted the ametropic condition of collateral security rectification eyeball to set out to select; Its second end face (7) is similarly sphere, and the radius-of-curvature of its radius-of-curvature and natural lens (8) front surface adapts; At this moment support component (2,3) is made two segment forms of radially settling, and protrudes outside sphere (7) scope of second end face of right cylinder (4) and as the extension of this sphere (7).
2, contact lenses as claimed in claim 1 is characterized in that: right cylinder (4) has the part of the end face (6) of chimb (5), and its radius-of-curvature is to select from the condition of correcting eye astigmatism.
3, contact lenses as claimed in claim 1 or 2 is characterized in that: opticator (1) and support component (2,3) are to make unified whole form.
4, contact lenses as claimed in claim 1 is characterized in that: the circle diameter (D) that limits support component (2,3) is 10～10.5 millimeters; Diameter (the d of ring-type outside chimb (5) 1) be between (0.38～0.59) D; Its thickness is between (0.1～0.11) D; The height (h) of right cylinder (4) is between (0.03～0.05) D; The thickness of support component (2,3) is between (0.01～0.05) D, and the radius-of-curvature (R on the surface (7) of (4) second end faces of right cylinder 1), be in (1.0～1.1) times scope of the circle diameter (D) that limits support component (2,3).
CN88107280A 1987-09-15 1988-09-14 The contact lenses that a kind of correction of refractive errors is used Pending CN1032460A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU874305428A SU1715341A1 (en) 1987-09-15 1987-09-15 Artificial lens for implantation into phacitic eye
SU4305428 1987-09-15

Publications (1)

Publication Number Publication Date
CN1032460A true CN1032460A (en) 1989-04-19

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CN88107280A Pending CN1032460A (en) 1987-09-15 1988-09-14 The contact lenses that a kind of correction of refractive errors is used

Country Status (10)

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JP (1) JPH02501363A (en)
CN (1) CN1032460A (en)
DE (1) DE3890771T1 (en)
ES (1) ES2010593A6 (en)
FR (1) FR2620329A1 (en)
GB (1) GB2217210A (en)
HU (1) HU203034B (en)
IT (1) IT1235022B (en)
SU (1) SU1715341A1 (en)
WO (1) WO1989002252A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098444A (en) * 1990-03-16 1992-03-24 Feaster Fred T Epiphakic intraocular lens and process of implantation
US5258025A (en) * 1990-11-21 1993-11-02 Fedorov Svjatoslav N Corrective intraocular lens
RU2033114C1 (en) * 1993-04-22 1995-04-20 Межотраслевой научно-технический комплекс "Микрохирургия глаза" Artificial crystalline lens
FR2713082B1 (en) * 1993-12-06 1996-01-12 Voir Vivre Monobloc intraocular implant.
WO1995028897A2 (en) * 1994-04-19 1995-11-02 Mcdonald Henry H Lens insertable between the iris and the natural lens
US6015435A (en) * 1996-10-24 2000-01-18 International Vision, Inc. Self-centering phakic intraocular lens
US5769890B1 (en) * 1997-01-16 2000-09-05 Surgical Concepts Inc Placement of second artificial lens in eye to correct for optical defects of first artificial lens in eye
US6200342B1 (en) * 1999-05-11 2001-03-13 Marie-Jose B. Tassignon Intraocular lens with accommodative properties
US7048759B2 (en) 2000-02-24 2006-05-23 Advanced Medical Optics, Inc. Intraocular lenses
SE0000611D0 (en) 2000-02-24 2000-02-24 Pharmacia & Upjohn Bv Intraocular lenses
US6613343B2 (en) 2000-04-12 2003-09-02 Pharmacia Groningen Bv Injectable intraocular accommodating lens

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Publication number Priority date Publication date Assignee Title
US3906551A (en) * 1974-02-08 1975-09-23 Klaas Otter Artificial intra-ocular lens system
US3994027A (en) * 1975-05-28 1976-11-30 California Intraocular Lens Corporation Prepupillary lens for implanting in a human eye
CH609859A5 (en) * 1975-06-06 1979-03-30 Inprohold Ets Lens as a substitute for the natural lens surgically removed from the eye of a living being
DE3169818D1 (en) * 1980-08-05 1985-05-15 Choyce David P Intraocular lens
US4535488A (en) * 1982-09-30 1985-08-20 Haddad Heskel M Anterior-posterior chamber intraocular lens
US4664666A (en) * 1983-08-30 1987-05-12 Ezekiel Nominees Pty. Ltd. Intraocular lens implants
US4585456A (en) * 1984-03-12 1986-04-29 Ioptex Inc. Corrective lens for the natural lens of the eye

Also Published As

Publication number Publication date
GB8911050D0 (en) 1989-08-02
HU203034B (en) 1991-05-28
IT8848336A0 (en) 1988-09-09
HUT50277A (en) 1990-01-29
ES2010593A6 (en) 1989-11-16
JPH02501363A (en) 1990-05-17
FR2620329A1 (en) 1989-03-17
IT1235022B (en) 1992-06-16
SU1715341A1 (en) 1992-02-28
GB2217210A (en) 1989-10-25
DE3890771T1 (en) 1989-09-07
WO1989002252A1 (en) 1989-03-23

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