Abstract: The present invention relates to a medicinal material for light therapy, comprising a matrix material and a photosensitizer, wherein the photosensitizer is dispersed inside the matrix material by copolymerization, is mixed inside the matrix material, or attached to the surface of the matrix material by surface grafting, modification, coating and the like. The present material can kill diseased tissue cells with a radiation under selected wavelength so as to obtain a phototherapy treatment of ophthalmic diseases. The present invention also provides a process for preparing the material and a use in preparing an ophthalmic medical device.

Abstract: The present invention relates to an aspherical multifocal intraocular lens with large depth of field, the intraocular lens having an anterior optical surface and a posterior optical surface, wherein one optical surface is distributed with an aspherical surface which plays a role of expanding the depth of field, and the other optical surface is distributed with a multifocal structure which plays a role of providing two or more focal points. The aspherical surface provides a depth of field matching with an absolute value of a difference in refractive power of at least one pair of adjacent focal points of the two or more focal points provided by the multifocal structure. The aspherical surface, on the one hand, allows a continuous visual range between the focal points and, on the other hand, extends near vision in the direction of near focal point through the depth of field, thereby enabling continuous, uninterrupted full-range vision and adequate near vision.

Abstract: The present disclosure relates to an orthokeratology lens which may comprise an inner surface facing a cornea of a human eye when the orthokeratology lens is worn and an outer surface opposite the inner surface, the inner surface comprising a centrally located base are zone, wherein the base arc zone is configured for pressing and shaping an anterior surface of the cornea to have a shape that conforms to the base are zone, wherein the base arc zone comprises two or more regions, at least two of the two or more regions having different radii of curvature. The present disclosure also relates to a method for making orthokeratology lenses.

Abstract: The present invention discloses a method for making an aspheric vision correction lens with controlled peripheral defocus. The present invention also discloses a vision correction lens worn outside the eye, an orthokeratology lens and an intraocular lens made according to the method. The present invention further discloses a diagnosis and treatment method that utilizes myopic peripheral defocus to control and retard myopia growth.

Abstract: The present invention discloses a method for making an aspheric vision correction lens with controlled peripheral defocus. The present invention also discloses a vision correction lens worn outside the eye, an orthokeratology lens and an intraocular lens made according to the method. The present invention further discloses a diagnosis and treatment method that utilizes myopic peripheral defocus to control and retard myopia growth.

Abstract: The present invention relates to a material for preparing an intraocular lens. In particular, it relates to an ophthalmic medical material suitable for manufacture of micro-incision intraocular lens, having suitable water content and a suitable refractive index.

Abstract: An intraocular lens implanter and a preloaded type intraocular lens implantation device, which can improve the operational reliability of the injection member so as to improve the operational reliability of rolling or folding of the intraocular lens in an expected direction. In the intraocular lens implanter the inner cavity of the implantation head is provided with a guide portion, where the guide portion has a shape approaching the movement route of the push pin from rear to front, so that the push pin can push the movable piece of the pressing plate on the guide portion, and the movable piece applies downward force to the push pin in turn, thereby the push pin performs the injection operation under the state that the head portion of the push pin keeps in contact with the lower surface of the inner cavity of the implantation head.

Abstract: The present invention relates to an aspherical multifocal intraocular lens with large depth of field, the intraocular lens having an anterior optical surface and a posterior optical surface, wherein one optical surface is distributed with an aspherical surface which plays a role of expanding the depth of field, and the other optical surface is distributed with a multifocal structure which plays a role of providing two or more focal points. The aspherical surface provides a depth of field matching with an absolute value of a difference in refractive power of at least one pair of adjacent focal points of the two or more focal points provided by the multifocal structure. The aspherical surface, on the one hand, allows a continuous visual range between the focal points and, on the other hand, extends near vision in the direction of near focal point through the depth of field, thereby enabling continuous, uninterrupted full-range vision and adequate near vision.

Abstract: The present invention relates to a viscoelastic agent that is suitable for ophthalmic surgery and can avoid the problem of intraocular lens opacity after ophthalmic surgery (such as cataract surgery). The viscoelastic agent comprises viscoelastic substance(s), pH buffering agent(s), wherein the pH buffering agent is selected from pH buffering agent(s) based on boric acid and/or borate, osmotic pressure regulator(s), and water. The viscoelastic agent may further optionally comprise substances with oxidizing and/or reducing properties.

Abstract: The present disclosure relates to an orthokeratology lens which may comprise an inner surface facing a cornea of a human eye when the orthokeratology lens is worn and an outer surface opposite the inner surface the inner surface comprising a centrally located base are zone, wherein the base arc zone is configure for pressing and shaping an anterior surface of the cornea to have a shape that conforms to the base are zone, wherein the base arc zone comprises two or more regions at least two of the two or more regions having different radii of curvature. The present disclosure also relates to a method for making orthokeratology he lenses.

Abstract: The present invention discloses a method for making an aspheric vision correction lens with controlled peripheral defocus. The present invention also discloses a vision correction lens worn outside the eye, an orthokeratology lens and an intraocular lens made according to the method. The present invention further discloses a diagnosis and treatment method that utilizes myopic peripheral defocus to control and retard myopia growth.

Abstract: The present invention discloses a method for making an aspheric vision correction lens with controlled peripheral defocus. The present invention also discloses a vision correction lens worn outside the eye, an orthokeratology lens and an intraocular lens made according to the method. The present invention further discloses a diagnosis and treatment method that utilizes myopic peripheral defocus to control and retard myopia growth.

Abstract: The present invention relates to a material for preparing an intraocular lens. In particular, it relates to an ophthalmic medical material suitable for manufacture of micro-incision intraocular lens, having suitable water content and a suitable refractive index.

Abstract: The present invention relates to a medicinal material for light therapy, comprising a matrix material and a photosensitizer, wherein the photosensitizer is dispersed inside the matrix material by copolymerization, is mixed inside the matrix material, or attached to the surface of the matrix material by surface grafting, modification, coating and the like. The present material can kill diseased tissue cells with a radiation under selected wavelength so as to obtain a phototherapy treatment of ophthalmic diseases. The present invention also provides a process for preparing the material and a use in preparing an ophthalmic medical device.

Abstract: The present invention discloses a method for preparing an aspheric vision correction lens with controllable peripheral defocus.

Abstract: The present invention provides nano-porous fibers and protein membrane compositions. In certain embodiments, continuous fiber compositions are provided having nanometer sized diameters and surface pores. In another embodiment, a protein membrane composition is provided comprising a protein; and a polymer, wherein the protein and the polymer are electrospun to form a protein membrane composition. In certain instance, the protein is covalently bound to the fiber.