摘要:
An implantable lens device has a diffractive surface defining an optical axis. The diffractive surface comprises a relief pattern extending concentrically on the surface and having a sequence of annular concentric steps characterized by alternating heights, wherein an innermost step of the relief pattern has a largest height among all other steps.
摘要:
Provided herein is a multifocal ophthalmic device comprising a lens body being formed with a plurality of concentric annular zones separated by slanted steps which effect both diffraction and refraction of incident light, while being devoid of any diffractive or refractive power, whereas the lens body is made from a co-polymeric composition based on less than 75% aromatic acrylate monomers, and includes a curcuminoid compound as a UV-light stabilizer; as well as use of the device for treating ophthalmologic and/or esthetic condition associated with an eye.
摘要:
A multifocal lens device is disclosed. The device comprises, a lens body having two opposite sides, wherein a first side has an aspheric profile and a diffractive pattern formed thereon, and the second side has a toric profile and is devoid of any diffractive pattern. In some embodiments of the present invention the diffractive pattern covers at least 80% of an area of the aspheric profile.
摘要:
A cartridge for implantation of a deformable intraocular lens (IOL) through a small incision in the eye, including a body portion including a first section including a first lens delivery passageway configured to contain an IOL readied for implantation, and a second section including a second lens delivery passageway connected to the first passageway, configured to fold the IOL when the IOL is pushed through the second passageway, and a nozzle portion extending from the body portion, the nozzle portion including a third passageway and a tip for insertion through the incision in the eye, the second passageway extending to the third passageway, the third passageway configured to transfer the folded IOL into an incision in an eye when the folded IOL is pushed through the nozzle. Related apparatus and methods are also described.
摘要:
The present invention, in some embodiments thereof, provides a method and device for automatically calculating, prior to an IOL (intraocular lens) implantation procedure in a patient, a power and an axis location of the IOL in the implantation procedure, the method comprising: inputting to an electronic device keratometry parameters of the patient; inputting to the electronic device surgical parameters of the IOL implantation procedure on the patient; analyzing the patient keratometry parameters and the surgical parameters by the electronic device; and automatically determining by the electronic device the power and the axis location of the IOL in the implantation procedure in response to the inputs.
摘要:
Polymeric and co-polymeric compositions useful for preparing ophthalmic and ocular devices, such as implantable intraocular lenses (IOL) and contact lenses, and processes of forming the compositions and devices are provided. The disclosed polymeric or co-polymeric composition may include a curcuminoid compound as a UV-blocker, and is derived from a pre-polymerization mixture of monomers which comprises at least 50 weight percents acrylate monomers and exhibiting visible light transparency and ultraviolet light opacity. The disclosed co-polymeric composition may alternatively, or in addition, be derived from a pre-polymerization mixture of defined monomers.
摘要:
A multifocal ophthalmic device is disclosed, wherein the lens body comprises a curcuminoid compound as a UV-light stabilizer, and/or a co-polymeric composition which is derived from a pre-polymerization mixture of defined monomers. The lens body of the multifocal ophthalmic device is being formed with a plurality of concentric annular zones, which effect both diffraction and refraction of incident light, and which are separated by slanted steps that are substantially devoid of any diffractive or refractive power.
摘要:
Polymeric and co-polymeric compositions useful for preparing ophthalmic and ocular devices, such as implantable intraocular lenses (IOL) and contact lenses, and processes of forming the compositions and devices are provided. The disclosed polymeric or co-polymeric composition may include a curcuminoid compound as a UV-blocker, and is derived from a pre-polymerization mixture of monomers which comprises at least 50 weight percents acrylate monomers and exhibiting visible light transparency and ultraviolet light opacity. The disclosed co-polymeric composition may alternatively, or in addition, be derived from a pre-polymerization mixture of defined monomers.
摘要:
A multifocal lens device is disclosed. The device comprises a lens body being formed with a plurality of concentric annular zones separated by slanted steps. The concentric zones effect both diffraction and refraction of incident light, while the steps are substantially devoid of any diffractive or refractive power.