Abstract: A pushrod tip having a top and bottom jaw, wherein the top and bottom jaws are coupled together to form an opening, wherein the top jaw is capable of flexing towards the bottom jaw when the pushrod tip is passed through a lumen. A pushrod having a top and bottom jaw, each with a first and second side along a longitudinal axis of the pushrod; the top and bottom jaw are coupled together; and the top jaw comprises a notch on the first side of the pushrod. An insertion system having a handpiece with a channel(s); and a pushrod assembly having a pushrod and a plunger; the pushrod having a rail(s) that is configured to couple with the channel(s) of the handpiece. An insertion system having a handpiece with a detent(s) and a key(s); and a pushrod assembly having a pushrod, a plunger, and a nut lock that has a series of radial keyways and a groove. The groove of the nut lock is configured to mate with the detent(s), and the series of radial keyways are configured to mate with the key(s).

Abstract: An accommodating IOL comprises an optic adapted to focus light toward a retina of an eye, and a movement assembly coupled to the eye to provide effective accommodating movement, preferably axial movement, of the optic. At least a portion of the movement assembly is made from a material that is less stiff and/or more resilient than the material used to make the optic. Optionally, an outer ring or support portion made at least partially from either a relatively stiff material such as the material used in the optic or a relatively resilient material such as the material used in the movement assembly is also provided.

Abstract: A foot pedal control for a surgical system, e.g., an ophthalmic surgery system, that adjusts to a number of different sizes of user's shoes. The foot pedal control has a treadle on which a user places his or her foot and a sensor that tracks the movements thereof. Adjustable lateral guides mount to the treadle and conform to both sides of the foot. The guides are shaped and positioned to conform to a wide variety of feet or shoes, and may easily be adjusted between users. A retractable heel stop converts between up for reference and down to enhance movement of the user's foot. A convertible handle may be stowed in a down position parallel to a base or pivoted up over the treadle for protection and ease of movement of the foot pedal control. The foot pedal control may be wireless and have various other electronic controls, and may have a dual-control treadle.

Abstract: A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a sensor configured to sense pressure provided from the cut valve, and a controller configured to control operation of the cut valve based on pressure sensed by the sensor. The controller is configured to monitor an amount of dwell time the vitrectomy cutting device remains open and monitor aspiration rate, and control a rate of material processed by the vitrectomy cutting device based on amount of dwell time and aspiration rate.

Abstract: Embodiments of this invention generally relate to systems and methods for eye imaging, and more particularly to measuring the size and position of the lens capsule and of the implanted intraocular lens. In one embodiment, a method for measuring the size and position of the lens capsule and of the implanted intraocular lens comprises generating and emitting one or more light beams at an angle adjacent to the eye, generating one or more eye images, and detecting the position and/or boundary of a lens capsule from its shadow casted by reflected light on the iris.

Abstract: 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.

Abstract: The present invention relates to an apparatus, system and method for, and for providing, intraocular delivery of an active agent. The apparatus, system and method may include an implantable scaffold and an active agent associated with the implantable scaffold. The implantable scaffold and the active agent may be configured to be completely contained within the eye upon implantation. The implantable scaffold may be a mechanical scaffold, or the implantable scaffold may be a chemical scaffold.

Abstract: A method and apparatus for precisely controlling particle movement relative to a phacoemulsification needle tip is provided. The design monitors actual vacuum present and calculates a pulse shape amplitude waveform proportional to the amount of measured vacuum. An increase in vacuum indicates that the handpiece/needle is becoming occluded by a large particle. The present design determines whether additional power is required to bump or move a large particle away from the needle tip. The present design may employ a control loop that senses and continuously monitors vacuum. The design may dynamically vary the amount of ultrasonic energy delivered to the surgical area in response to the observed actual vacuum, and can actively vary the amount of power delivered to the surgical area based on the size of the particle and the resultant vacuum realized.

Abstract: A system for preparing an intraocular lens (IOL) injector for receipt of an IOL. A manifold mates with an injector cartridge and easily distributes a lubricating agent to a load chamber of the cartridge. The IOL is then transferred into the load chamber. The cartridge may be rotatably coupled to the handpiece, and then converted from a preparation and load position to a delivery position. The manifold may remain external to the load chamber or fit within the load chamber and include a handle that remains outside. One or more internal channels in the manifold lead from one or more inlet ports to surfaces in the load chamber than contact the IOL.

Abstract: An accommodating intraocular lens for providing a range of accommodative vision includes a deformable optic. The deformable optic includes a plurality of layers that have a progressively increasing hardness and/or refractive index characteristic from the outermost layer to the innermost layer to provide a range of accommodative power.

Abstract: Systems and methods for providing improved techniques for evaluating performance of intraocular lenses. Such techniques can be used to evaluate lens designs and can help reduce the need for multiple clinical trials that may otherwise be needed to evaluate multiple design iterations. In one embodiment, a method is provided for method for evaluating performance of an intraocular lens, where the method comprises capturing a plurality of images through the intraocular lens at different focus positions; displaying at least one selected image from the plurality of images to a test subject; receiving input from the test subject indicative of perceived acuity of the at least one selected image; and determining a measure of intraocular lens performance from the received input.

Abstract: The present invention relates generally to providing pressurized infusion of liquids and more particularly, is directed to providing a stable and pressurized flow of irrigation fluid to the eye during surgery.

Abstract: A phacoemulsification system for operating a surgical handpiece having a handpiece; an irrigation fluid source for supplying irrigation fluid to the eye; an aspiration source coupled to the handpiece in order to aspirate the irrigation fluid from the eye through the handpiece; and a controller for controlling a vacuum in the handpiece, the controller comprising: a sensor for sensing the vacuum in the handpiece; an occlusion parameter, the occlusion parameter being a vacuum level corresponding to an occlusion of the handpiece or a flow rate corresponding to an occlusion of the handpiece; a maximum allowable vacuum level in the handpiece, the maximum allowable vacuum level having at least a first predetermined level; and a trigger value that is set based in part on the occlusion parameter.

Abstract: A cartridge for an intraocular lens insertion device is disclosed. An example cartridge may include an intraocular lens insertion cartridge body having a distal end and a proximal end and configured to receive an intraocular lens for insertion into a patient's eye through an incision; the intraocular lens insertion cartridge body having an inner surface comprising at least one polymeric material having a hardness greater than about 50 D and an elongation at break greater than about 150%; the inner surface of the intraocular lens insertion cartridge body defining an at least partially tapering insertion pathway disposed within the intraocular lens insertion cartridge body and extending from the proximal end to the distal end of the intraocular lens insertion cartridge body.

Abstract: An intraocular lens (30) having focusing capabilities permitting focusing movement of the lens (30) in response to normal ciliary body (24) movement incident to changes in the distance between the eye and an object under observation is provided. The lens (30) is designed for surgical implantation within the capsule (20) of an eye (10) and includes an optic (32) and an optic positioning element (33) which cooperate to form the lens (30). Accommodation is achieved by relying upon the thickening and thinning of the optic (32) as a result of the normal retracting and contracting of the ciliary body (24) in response to the distance of an object from the viewer.

Abstract: Methods, devices, and systems for laser eye surgery generally make use of a console that interchangeably accepts multiple types of eye treatment cassettes. The cassettes enable one or both of displacement-based or vacuum-based aspiration. The console and the cassette may communicate to establish the functionality of the installed cassette by utilizing a component indigenous to the operation of the cassette. A dual-mode cassette may include a separable holding tank for enabling vacuum-based aspiration. A displacement-based pump may be provided to drain the holding tank while the vacuum system continues to aspirate fluids. A vacuum sensor for controlling the flow of aspirated fluids may have three ports for communicating with a handpiece, a displacement-based pump, a vacuum-based pump, or an irrigation source. The handpiece may be vented during vacuum-based aspiration by opening a vent valve interposed between the handpiece and the vacuum source.

Abstract: Methods, devices, and systems for laser eye surgery generally make use of a console that interchangeably accepts multiple types of eye treatment cassettes. The cassettes enable one or both of displacement-based or vacuum-based aspiration. The console and the cassette may communicate to establish the functionality of the installed cassette by utilizing a component indigenous to the operation of the cassette. A dual-mode cassette may include a separable holding tank for enabling vacuum-based aspiration. A displacement-based pump may be provided to drain the holding tank while the vacuum system continues to aspirate fluids. A vacuum sensor for controlling the flow of aspirated fluids may have three ports for communicating with a handpiece, a displacement-based pump, a vacuum-based pump, or an irrigation source. The handpiece may be vented during vacuum-based aspiration by opening a vent valve interposed between the handpiece and the vacuum source.

Abstract: An intraocular lens for providing a range of accommodative vision, an extended depth of focus, or enhanced performance through the asymmetric transfer of ocular forces to the lens. The intraocular lens contains an optic and a haptic. The shape and/or material of the haptic results in the transmission of ocular forces to particular regions in the optic. Greater forces applied to particular regions result in deformation of that region and increased power.

Abstract: Disclosed herein is a method of calculating tear film lipid and aqueous layer thicknesses and/or corneal surface refractive index from interferometry data obtained from simultaneous measurements of the aqueous and lipid layers of the tear film along with a measurement of the corneal surface reflectance.

Abstract: A polymeric material with a variable modulus of elasticity is described herein. The polymeric material described herein is useful for forming implantable medical devices (e.g. ophthalmic lenses, breast implants, and body augmentation devices). In addition, medical devices formed from the polymer material can be used to controllably release a therapeutic agent. Also, the polymeric material may be used to prepare topical compositions or other applications or devices where control of a mechanical property such as material modulus is important.