Patent classifications
A61F2/1629
Refocusable lens system with mutually-applanating internal surfaces
An accommodating (re-focusable) lens system a body of which includes, upon being assembled, first and second individual lenslets having first and second optical portions sequentially disposed along an optical axis. Change in optical-power accommodation of the system is achieved by changing an applanated area of contact between the lenslets in response to force applied to the lenslets and transformed into an axial force. In specific case, the first and second lenslets form an intraocular lens (IOL) and have respective haptic portions, interlocked as a result of rotating of one lenslet with respect to another such as to bring first and second lenslets in contact at an axial point. The applanated area of contact is changed, then, in response to a radially-directed force caused by a change of distance between the interlocked ends of the haptics and transferred to the optical portions through the interlocked haptics. When installed in a natural lens capsule after the cataract extraction, the optical power of such IOL is gradually modifiable due to a change of curvature of the capsule caused by operation of a ciliary muscle.
DIFFRACTIVE INTRAOCULAR LENSES FOR EXTENDED RANGE OF VISION
Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs). Exemplary diffractive intraocular implants (IOLs) can include a diffractive profile having multiple diffractive zones. The diffractive zones can include a central zone that includes one or more echelettes and a peripheral zone beyond the central zone having one or more peripheral echelettes. The central diffractive zone can work in a higher diffractive order than a remainder of the diffractive profile. The combination of the central and peripheral zones and an optional intermediate zone provides a longer depth of focus than a diffractive profile defined just by a peripheral and/or optional intermediate zone.
ACCOMMODATIVE INTRAOCULAR LENS
An accommodating intraocular lens implant includes (a) a posterior lens unit and (b) an anterior assembly, which includes first and second anterior components, each of which comprises exactly one polymeric piece. The first anterior component is shaped so as to define an anterior floating lens unit and levers. The second anterior component (a) is assembled with the first anterior component such that the first and the second anterior components are separable from each other without tearing the anterior components, and (b) is shaped so as to define (i) an anterior rim complex, and (ii) anterior rim links, which are connected to the anterior rim complex. The levers are in jointed connection with the anterior floating lens unit, the anterior rim links, and the posterior lens unit. The levers are arranged to move the anterior floating lens unit toward and away from the anterior rim complex.
Intraocular optic assembly
An intraocular optic assembly can include a first lens, a first plurality of stanchions, a second lens, and a second plurality of stanchions. A central optic axis can extend through centers of the first and second lenses. The first plurality of stanchions can each extend a first distance between a first base end and a first distal end. The first lens can be connected with the first distal ends. The second plurality of stanchions can each extend a second distance between a second base end and a second distal end. The second lens can be connected with the second distal ends. Compression at the peripheries of the stanchions induces movement of the lenses apart from one other.
ACCOMMODATING INTRAOCULAR LENS SYSTEMS AND INTRAOCULAR LENS FOCUSERS
An intraocular lens focuser (114) to be implanted in a human eye includes a resiliently deformable force applicator (140) to apply a focussing force to an accommodating intraocular lens and an attaching portion configured to enable attachment of the lens focuser in the eye. The force applicator is configured such that, in use, when a ciliary muscle of the eye is relaxed to place the accommodating intraocular lens in a distance vision condition, the force applicator is in a deformed condition and when the ciliary muscle contracts to place the accommodating intraocular lens in a near vision condition the force applicator resiles towards a relaxed non-deformed condition to at least assist in placing the accommodating intraocular lens in the near vision condition. The attaching portion has a plurality of members configured to permit attachment of the force applicator to at least one of i) an exterior of a capsular sac of the eye ii) zonules of the eye and iii) the ciliary muscle with the force applicator disposed exteriorly of the capsular sac.
VARIABLE STRENGTH INTRAOCULAR LENS AND METHOD OF USING SAME
The present disclosure provides intraocular artificial lenses having a variable optical strength and methods of treating an eye disorder, such as presbyopia, using same. In some embodiments, the intraocular artificial lens comprises two optical elements that are moveable along the optical axis in relation to each other, for example in response to the accommodative process of the eye.
Accommodating intraocular lenses
An accommodating intraocular lens including an optic portion comprising an anterior surface and a posterior surface, a peripheral portion disposed radially relative to the optic portion and in communication with the optic portion and, the peripheral portion having a proximal portion secured to the optic portion and a free distal portion disposed away from the proximal portion, and a radially innermost surface of the peripheral portion, from the proximal portion to the free distal portion, follows a curved radially-outermost peripheral surface of the optic portion.
OPHTHALMIC DEVICES, SYSTEM AND METHODS THAT IMPROVE PERIPHERAL VISION
The present disclosure relates to devices, systems, and methods for improving or optimizing peripheral vision. In particular, various IOL designs, as well as IOL implantation locations, are disclosed which improve or optimize peripheral vision.
Intraocular lens, in particular capsular sac intraocular lens
The present invention relates to an intraocular lens, in particular capsular intraocular lens, with at least an anterior, a posterior optic element, a haptic element connecting both optic elements, wherein a cavity is formed by the optic element, and haptic elements, which are opened by circumferentially arranged openings. The object of the present invention is to provide an intraocular lens that allows a symmetrical deformation of one or more optic elements of the intraocular lens as well as a relative displacement of these optic elements relative to each other on their optic elemental axis, so that a sufficient change in refractive power is obtained. This object is met by an intraocular lens, wherein it is provided that the area of the cavity between the optic elements comprises a filling that is at least partially enclosed by a membrane that a) is formed as a bag and completely encloses the filling, b) is ring-shaped and is connected to the anterior and posterior optic element or c) closes the openings The present invention further relates to an intraocular lens having at least an anterior and a posterior optic element and a haptic element interconnecting both optic elements. According to the invention the haptic element forms an overhang at the transition to the anterior optic element, wherein the anterior surface of the haptic element anterior extends beyond the edge of the anterior optic element or the haptic element forms an overhang at the transition to the posterior optic element, whereby the posterior surface of the haptic element posterior protrudes over the edge of posterior optic element, wherein the anterior or the posterior optic element is preferably embodied as a pinhole.
INTRAOCULAR LENSES THAT IMPROVE PERIPHERAL VISION
Lenses and methods are provided for improving peripheral and/or central vision for patients who suffer from certain retinal conditions that reduce central vision or patients who have undergone cataract surgery. The lens is configured to improve vision by having an optic configured to focus light incident along a direction parallel to an optical axis at the fovea in order to produce a functional foveal image. The optic is configured to focus light incident on the patient's eye at an oblique angle with respect to the optical axis at a peripheral retinal location disposed at a distance from the fovea, the peripheral retinal location having an eccentricity between −30 degrees and 30 degrees. The image quality at the peripheral retinal location is improved by reducing at least one optical aberration at the peripheral retinal location. The method for improving vision utilizes ocular measurements to iteratively adjust the shape factor of the lens to reduce peripheral refractive errors.