Patent classifications
A61F2/1613
OPHTHALMIC APPARATUS WITH CORRECTIVE MERIDIANS HAVING EXTENDED TOLERANCE BAND
The embodiments disclosed herein include improved toric lenses and other ophthalmic apparatuses (including, for example, contact lens, intraocular lenses (IOLs), and the like) and associated method for their design and use. In an embodiment, an ophthalmic apparatus (e.g., a toric lens) includes one or more angularly-varying phase members comprising a diffractive or refractive structure, each varying the depths of focus of the apparatus so as to provide an extended tolerance to misalignment of the apparatus when implanted in an eye. That is, the ophthalmic apparatus establishes an extended band of operational meridian over the intended correction meridian.
OPHTHALMIC APPARATUS WITH CORRECTIVE MERIDIANS HAVING EXTENDED TOLERANCE BAND
The embodiments disclosed herein include improved toric lenses and other ophthalmic apparatuses (including, for example, contact lens, intraocular lenses (IOLs), and the like) that includes one or more refractive angularly-varying phase members, each varying depths of focus of the apparatus so as to provide an extended tolerance to misalignments of the apparatus. Each refractive angularly-varying phase member has a center at a first meridian (e.g., the intended correction meridian) that directs light to a first point of focus (e.g., at the retina of the eye). At angular positions nearby to the first meridian, the refractive angularly-varying phase member directs light to points of focus of varying depths and nearby to the first point of focus such that rotational offsets of the multi-zonal lens body from the center of the first meridian directs light from the nearby points of focus to the first point of focus.
OPHTHALMIC LENS HAVING AN EXTENDED DEPTH OF FOCUS
In certain embodiments, an ophthalmic lens includes an optic having an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface includes a first zone extending from the optical axis to a first radial boundary and a second zone extending from the first radial boundary to the edge of the optic. The first zone includes an inner region and an outer region separated by a phase shift feature, the phase shift comprising a ridge extending outwardly from the inner region and the outer region.
INTRAOCULAR ABERRATION CORRECTION LENS
The intraocular aberration correction lens is shaped by an optical area that has a gradient in the chromatic dispersion value of the material or materials that shape it, in such way that said gradient is parallel to the optical axis. The net value of the chromatic dispersion in the anterior area of the lens is different from the value in its posterior area. For this, the use of a single material or various is possible. The anterior and posterior surfaces of the lens, as well as the separation between adjacent materials, if applicable, have a geometric shape so that the group comprising the intraocular lens and the eye that contains it display a correction, or significant reduction, of the optical aberrations, both the chromatic ones and the monochromatic ones on and outside the optical axis. The lens can be given areas with different optical powers in a way that enables clear and simultaneous vision at different distances.
Haptic combinations for accommodating intraocular lenses
A haptic combination comprising at least one optical element adapted to provide at least two optical functions including provision of a fixed optical power and provision of variable optical power. The haptic combination comprises at least a first haptic adapted to provide anchoring and positioning of at least one of the optical elements and at least a second haptic adapted to provide transfer of movement from at least one driving means in the eye to at least one of the optical elements. Movement of the second haptic is independent from movement of the first haptic.
Intraocular lens, in particular ciliary intraocular lens
The present invention relates to an intraocular lens, in particular a ciliary intraocular lens having at least one optic and one haptic element. In order to create an intraocular lens that enables a symmetrical deformation of one or several optic elements of the intraocular lens as well as a relative displacement of these optic elements on their optical axis to each other, so that a sufficient change in refractive power is achieved, it is proposed that the haptic element is composed of several haptic elements, preferably connected to the optic element in equiangular manner, wherein a) the haptic elements have an essentially trapezoidal portion in a plan view and the bases of two adjacent haptic elements are connected to each other at the transition to the optic element and b) the haptic elements on the side of the trapezoidal portions facing away from the optic element have a part of annular haptic ring segment, wherein the haptic ring segments of two adjacent haptic elements in the unloaded state are spaced slightly away from one another, Furthermore, a method for implantation of an intraocular lens having at least one optic element and one haptic element, and a filling is claimed. According to the invention, the intraocular lens is folded or rolled to reduce the volume so that the filling is at least partially disposed in one or possibly several reservoir/s and the filling is at least partially pressed from the reservoir into the cavity after implantation.
MULTIFOCAL LENS HAVING REDUCED VISUAL DISTURBANCES
A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface, at least one diffractive structure and at least one base curvature. The at least one diffractive structure for provides a first spherical aberration for a first focus corresponding to at least a first focal length. The at least one base curvature provides a second spherical aberration for at least a second focus corresponding to at least a second focal length. The first spherical aberration and the second spherical aberration are provided such that the first focus has a first focus spherical aberration and the second focus has a second focus spherical aberration. The first focus spherical aberration is opposite in sign to the second focus spherical aberration.
Foldable intraocular lens and method of making
A foldable intraocular lens for providing vision contains an optic body that includes an optical zone and a peripheral zone entirely surrounding the optical zone. The optic body has an anterior face, a substantially opposing posterior face, an optic edge, and an optical axis. The anterior face comprises a central face, a peripheral face, and a recessed annular face therebetween that is disposed posterior to the peripheral face. The intraocular lens further comprises at least one haptic that is integrally formed with the peripheral zone. The haptic comprises a distal posterior face, a proximal posterior face, and a step edge disposed at a boundary therebetween. The haptic further comprises a side edge disposed between the optic edge and the step edge. The proximal posterior face and the posterior face of the optic body form a continuous surface. An edge corner is formed by the intersection of the continuous surface with the optic edge, the side edge, and the step edge.
Soft intraocular lens
An intraocular lens of the present invention has a substantially circular or elliptical optical lens portion made of a soft material, and an arm-shaped support arm portion attached to outer peripheral edges of this optical lens portion, and out of the peripheral edges of the optical lens portion that are contiguous to both sides in a width direction of a root of the support arm portion, at least one outer peripheral edge has a portion recessed inward from the convex curve. Thus, there is provided a soft intraocular lens that can be inserted into an eye from a further smaller incision, without damaging an optical function as much as possible.
Device for optically representing intraocular pressure, and a method for same
A device for optically representing intraocular pressure, having an arrangement which is implanted into the eye with a membrane that curves outwards when the intraocular pressure changes, and a contact surface, these altering the polarization for a spectral range of incident and reflected light in the region of their contact with one another, as well as a read-out arrangement that optically reproduces a planar image of the light which is reflected by the photonic crystal and whose polarization has been altered, and that comprises a polarization filter for the irradiated light and the light reflected by the photonic crystal. Also, a method for measuring intraocular pressure.