Abstract:
A system for performing an ophthalmic procedure on an eye including a capsular bag, the eye having an intraocular lens (IOL) implanted therein, comprising a laser, a data processing unit for receiving an image of at least a portion of the eye and determining a portion of the capsular bag to adhere to a portion of the IOL, and a control unit configured to communicate with the laser and the data processing unit and to execute instructions for controlling the laser such that the laser applies energy to the portion of the capsular bag sufficient to melt the portion of the capsular bag without cauterization such that the portion of the capsular bag adheres to the portion of the IOL.
Abstract:
A system and method for retaining an intraocular lens in an annular pouch implanted into a capsular bag of an eye. The annular pouch uses a circular ridge to maintain placement of the lens relative to the eye. Clarity of the capsular bag is retained over time because the pouch fills the capsular bag and prevents a loss of clarity in the capsular bag due to sagging.
Abstract:
The invention concerns an accommodative intraocular lens for capsular bag comprising a central optical part and a peripheral haptic part, the optic part having an forward position for accommodation and a rest position for far vision. The invention is characterized in that the haptic part (20) comprises a radially extending zone for displacing the optic part (10) towards the forward position. The radially extending zone (21) may include a gusset (22) with at least one crimp and/or made of a more flexible material than the remainder of the haptic part.
Abstract:
An intraocular lens system including one or more intraocular lenses (IOL) (12) and a peripheral holder (10). The peripheral holder (10) is configured to receive and retain the distal end of a fixation member (26) of the IOL (12) and provide a dynamic interface betweeen the natural capsular bag (16) and fixation member (26). The holder (10) is preferably annular and flexible and transmits movement of the capsular bag (16) from the surrounding ciliary muscles (18) to the IOL (12). In this manner, a circumferential surface contact with the capsular bag (16) is provided and accomodation of the IOL (12) is improved. If two IOLs are received in the holder, a spacer may be provided to insure consistent spacing between the IOLs. Alternatively, an IOL system may include two IOLs and a spacer, without the holder. The holder desirably includes a sharp exterior corner to inhibit cell growth and posterior capsular opacification.
Abstract:
An open chamber, accommodative, intraocular lens method, and apparatus operable to be positioned within an evacuated capsular bag of a human eye following extracapsular extraction of a natural crystalline lens, is provided having an anterior refractive lens optic (42); a first haptic segment (46) having a first end, being connected at the first end to peripheral portion of the anterior lens optic, and a second end; and the haptic segment extending in an elliptical curve, in longitudinal cross section; and at least a second haptic segment (46) having a first end, being connected at the first end to a peripheral portion of the lens optic, and a second end; and at least a second haptic segment extending in an elliptical curve, in longitudinal cross section, and being operably joined with the second end of the first haptic segment to form an open chamber, elliptical shaped haptic accommodating support for the anterior lens within an evacuated capsular bag of a human eye.
Abstract:
An IOL utilizes a haptic (100) formed as a toroid portion (102) configured to fit into a capsular bag of an aphakic eye of a patient. The toroid portion may be separate from an IOL optic and may include a receiving feature (104) for the IOL optic. The toroid portion may be configured for intraoperative fluid-filling for snug fitting at the equator of the capsular bag, in order to immobilize the IOL optic.
Abstract:
An IOL system includes a capsular ring (200) having a concave exterior surface (208) extending around its circumference that is configured, upon insertion into a capsular bag (108) of a patient's eye, to engage an equatorial region of the capsular bag. The concave exterior surface extends between an anterior surface (204) and a posterior surface (206) of the capsular ring. A first one or more flaps (212) are arranged on the anterior surface such that at least a portion of each of the first one or more flaps, upon insertion into the capsular bag of a patient's eye, engages an anterior portion of the capsular bag. Similarly, a second one or more flaps are arranged on the posterior surface such that at least a portion of each of the second one or more flaps, upon insertion into a capsular bag of a patient's eye, engages a posterior portion of the capsular bag.
Abstract:
Die vorliegende Erfindung betrifft eine Intraokularlinse, insbesondere Kapselintraokularlinse, mit mindestens einer anterioren Optik und einer posterioren Optik sowie einer beide Optiken verbindenden Haptik, wobei durch die Optiken und die Haptik ein Hohlraum gebildet wird, der durch zirkumferenziell angeordnete Durchbrechungen geöffnet ist. Die Aufgabe der vorliegenden Erfindung ist es, eine Intraokularlinse zu schaffen, die eine symmetrische Verformung einer oder mehrerer Optiken der Intraokularlinse sowie eine relative Verschiebung dieser Optiken auf ihrer optischen Achse zueinander ermöglicht, so dass eine ausreichende Brechkraftänderung erzielt wird. Diese Aufgabe wird durch eine Intraokularlinse gelöst, bei der erfindungsgemäß vorgesehen ist, dass der Bereich des Hohlraums zwischen den Optiken eine Füllung aufweist, die zumindest teilweise von einer Membran umschlossen ist, die a) als Säckchen ausgebildet ist und die Füllung vollständig umschließt, b) ringförmig ausgebildet ist und mit der anterioren und posterioren Optik verbunden ist oder c) die Durchbrechungen verschließt. Ferner betrifft die vorliegende Erfindung eine Intraokularlinse mit zumindest einer anterioren und einer posterioren Optik und einer beide Optiken miteinander verbindenden Haptik. Erfindungsgemäß bildet die Haptik am Übergang zur anterioren Optik einen Überhang, wobei die anteriore Fläche der Haptik anterior über den Rand der anterioren Optik hinausragt, oder die Haptik bildet am Übergang zur posterioren Optik einen Überhang, wobei die posteriore Fläche der Haptik posterior über den Rand der posterioren Optik hinausragt, wobei die anteriore oder die posteriore Optik vorzugsweise als Lochblende ausgebildet ist.
Abstract:
An intraocular lens is disclosed, with an optic that changes shape in response to a deforming force exerted by the zonules of the eye. A haptic (50, 60, 70, 90,100, 110, 130, 150, 170) supports the optic around its equator and couples the optic to the capsular bag of the eye. Certain haptic features improve the accommodative performance of the haptic, such that compressive/tensile forces may be more efficiently transferred from the haptic to optic. Furthermore, certain aspects also provide enhanced bag-sizing capability so that the IOL better fits within the capsular bag.