Intraocular lens supporter
View Patent ↗Disclosed is an intraocular lens supporter having a control ability. One embodiment of the present invention provides an intraocular lens supporter that is inserted into a capsular sac, including a first face coming in contact with an inner surface of the capsular sac in at least one point as a structural body that is extended along an equatorial region of the capsular sac; and a second face arranged opposite to the first face, wherein, in a section where the structural body is cut along a virtual plane in a visual axis direction (Y direction) of an eye lens, the first face is provided at a length as much as ¾ to 3 times of a length (d 5 , d 10 ) of a region where an zonule of Zinn is coupled to an outer surface of the capsular sac.
1. An intraocular lens (IOL) supporter adapted to be inserted into a capsular sac, wherein the intraocular lens supporter is a structural body having a closed ring shape configured so that a force is transferred to the intraocular lens due to movement of a zonule of Zinn, the intraocular lens supporter comprising:
an outer circular face configured to come in direct contact with an inner surface of a capsular sac in at least one point when inserted into the capsular sac; and
an inner circular face arranged opposite to the first face, the inner face comes in direct contact with a haptic portion of the intraocular lens,
wherein the intraocular lens supporter is extended along an equatorial region of the capsular sac when inserted into the capsular sac and in a section where the structural body is cut along a virtual plane in a visual axis direction of an eye lens, the outer face is provided at a length as much as ¾ to 3 times of a length of a region where an zonule of Zinn is coupled to an outer surface of the capsular sac,
the outer face has a first extended length from one end portion to another end portion in the section where the structural body of the outer face is cut along the virtual plane in the visual axis direction of the eye lens of 2 mm to 8 mm,
the inner face has a second extended length from one end portion to another end portion on the section where the inner face is cut along the virtual plane in the visual axis direction of the eye lens,
wherein the second extended length of the inner face is longer by 0.4 to 1 times that of the first extended length of the outer face, and
the outer face has an anterior portion and a posterior portion corresponding respectively to an anterior capsule and a posterior capsule when inserted into the capsular sac divided by an equator (E) of the capsular sac, wherein the equator is a vertical direction relative to the visual axis direction of the eye lens.
2. The intraocular lens supporter according to claim 1 , wherein the anterior portion has a larger curvature than the posterior portion, when viewed in an imaginary plane.
3. The intraocular lens supporter according to claim 1 , wherein a sectional shape of the outer face taken by an imaginary plane accords with a sectional shape of an equatorial region of a human natural eye lens taken by the imaginary plane.
4. The intraocular lens supporter according to claim 1 , wherein a material of the intraocular lens supporter is composed of one selected from the group consisting of silicone, silicone elastomer, silicone polymer, polydimethyl siloxane, polypropylene, polyimide, polybutester, polymethyl methacrylate (PMMA), Microplex PMMA, CQ-UV PMMA, acrylic resin, rigid acrylic, flexible acrylic, acrylic plastic, hydrophobic acrylicHydrophobic acrylic, hydrophilic acrylic, hydrophilic acrylic polymer, UV absorbing acrylate, methacrylate copolymer, butyl acrylate, polysiloxane elastomer, UV absorbing polysiloxane, collagen copolymer, gold, hydrogel, 2-hydroxyethyl methacrylate (HEMA), methyl methacrylate (MMA), cellulose acetate butylate (CAB), 2-hydroxy ethyl methacrylate (2-HAMA), n-vinyl pyrrolidone (NVP), polyvinyl pyrrolidone (PVP), meth acrylic acid (MA), glycerol methacrylate (GM A), dimethyl siloxane (DMS), polyhydroxyethyl methacrylate (PHEMA), polyethylenehlycol methacrylate (PEGMMA), poly HEMA hydrogel, poly HEMA hydrogel with UV absorption, silicone hydrogel, GMA/HEMA, HEMA/PVP/MA, PVA, HEMA/PVA/MA, HEMA/PVA/MMA, HEMA/MMA, HEMA/NVP, HEMA/NVP/MA, HEMA/NVP/MM A, HEM A/Acryl, and HEM A/PC.
5. The intraocular lens supporter according to claim 1 , wherein a surface of the outer face is rougher than a surface of the inner face.
6. The intraocular lens supporter according to claim 1 , wherein a surface of the outer face further includes an adhesive for facilitating mounting of the capsular sac.
7. The intraocular lens supporter according to claim 6 , wherein the adhesive is tissue glue or glue.
8. The intraocular lens supporter according to claim 1 , wherein the outer face has the same or substantially same equatorial diameter as the inner surface of the capsular sac.
9. The intraocular lens supporter according to claim 1 , wherein the outer face and the inner face are convex in a direction from the inner face toward the outer face.
10. The intraocular lens supporter according to claim 1 , wherein a fluid is filled between the first face and the second face.