Abstract: This intraocular lens (IOL) injector for delivering an IOL into an eye of a patient includes an IOL load chamber and connected delivery tube, and a spring-loaded push rod for urging the IOL through the delivery tube and out of a distal tip thereof. The injector includes an actuator that is cocked to compress an automatic delivery coil spring. Cocking the actuator also folds the IOL and may elongate a dual optic IOL. A braking mechanism may be provided to permit control of the spring-biased IOL advancement. The injector is in a pen style with finger plates on the side for better ergonomic control.

Abstract: A surgical cassette for use with a phacoemulsification system having a front plate, a back plate, and a gasket therebetween. The front plate having molded fluid channels that mate with the gasket. The gasket having multiple valves and a sensor or diaphragm accessible through the back plate.

Abstract: A protective cap having finger grips, a window, and port. The protective cap may also have one or more clips (or snaps), one or more relief slots, and/or one or more guides. Protective cap 200 may also have a fill indicator and/or a material relief. An insertion system having a handpiece, a pushrod assembly, a cartridge, and a cap with a window and a port. The cap is configured and dimensioned to couple with the distal end of the cartridge. The insertion system may also have a pushrod with a plunger having a marker configured and dimensioned to indicate axially translation of the pushrod assembly within the handpiece.

Abstract: A method for determining reflectivity of a tear film lipid layer of a patient and recommending a course of treatment based on the same. The method includes the steps of: measuring a tear film aqueous plus lipid layer relative reflectance spectrum using a wavelength-dependent optical interferometer; converting the measured tear film aqueous plus lipid layer relative reflectance spectrum to a calculated absolute reflectance spectrum; comparing the calculated absolute reflectance spectrum to a theoretical absolute lipid reflectance spectrum to determine a tear film lipid layer thickness; and determining a reflectivity value for the tear film lipid layer thickness at a first wavelength of light corresponding to ultraviolet, violet, or blue light.

Abstract: An apparatus, system and method of consolidation of HD video and a surgical data overlay, such as for recordation in a single consolidated video capture recording of the HD video and surgical data overlay for subsequent playback and/or storage; and an apparatus, system and method for recording HD surgical video consolidated with a surgical data overlay in which an automated switch occurs between at least two surgical HD video sources based, at least in part, on then-active surgical aspects.

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: In one aspect of the invention, a multi-purpose phacoemulsification needle comprises a needle body disposed about a centerline and has a lumen disposed therein. The lumen has a first cross-sectional area that is normal to the centerline. The needle further comprises a distal tip comprising an arcuate surface and a face with a port therein. The port has a second cross-sectional area in a plane generally parallel to the face and is in fluid communication with an internal cavity that has a third cross-sectional area normal to the centerline, the internal cavity being in fluid communication with the lumen. The needle is configured such that the third cross-sectional area is greater than either the first cross-sectional area or the second cross-sectional area. In another aspect of the invention, the needle comprises a plurality of fins projecting inwardly from the lumen.

Abstract: A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, typically sufficient or intended to rapidly induce and beneficially employ transient cavitation. Applying energy during the pulsed energy on period comprises applying energy during a first high energy period, and applying energy during a second nonzero lower energy period.

Abstract: An intraocular lens includes a deformable optic, a rigid optic, and a support structure. The deformable optic is disposed about an optical axis and comprises a solid material and a deformable surface. The rigid optic is disposed about the optical axis and comprises a solid material and a rigid surface. The support structure is operably coupled to at least one of the optics for pressing the deformable surface and the rigid surface together in response to or in the absences of an ocular force, whereby at least a portion of the deformable surface changes shape such that the optical power of the at least a portion of the deformable surface and/or the intraocular lens changes by at least 2 Diopter.

Abstract: A method and apparatus for wireless device power management is provided. The method comprises providing a charge to an intermediate power cell by electrically connecting the intermediate power cell to a power source, disconnecting the intermediate power cell from the power source, and electrically connecting the wireless device to the intermediate power cell. Such electrical connecting enables power cell recharging within the wireless device.

Abstract: An intraocular lens for providing a subject with vision at various distances includes an optic having a first surface with a first shape, an opposing second surface with a second shape, a multifocal refractive profile, and one or more diffractive portions. The optic may include at least one multifocal diffractive profile. In some embodiments, multifocal diffractive and the multifocal refractive profiles are disposed on different, distinct, or non-overlapping portions or apertures of the optic. Alternatively, portions of the multifocal diffractive profiles and the multifocal refractive profiles may overlap within a common aperture or zone of the optic.

Abstract: An apparatus, system and method for providing an optical filter for an intraocular lens. The apparatus, system and method may include at least one optical filtering layer applied to at least one surface of the optic, wherein the optical filtering layer may at least partially filter light through the intraocular lens. The at least one optical filtering layer may include different types of optical filters including a neutral density filter, a chromatic filter, a photochromatic filter, and a polarizing filter. These filters may be used to reduce the transmission of light through the intraocular lens.

Abstract: A method for determining optical properties of a corneal region. The method includes the steps of obtaining a combined tear film aqueous layer plus lipid layer thickness; obtaining a tear film lipid layer thickness; subtracting the tear film lipid layer thickness from the combined tear film aqueous layer plus lipid layer thickness to obtain a tear film aqueous layer thickness; and determining a corneal layer refractive index based on the tear film lipid layer thickness and the tear film aqueous layer thickness.

Abstract: An intraocular lens for providing vision to a subject contains an optic, a support structure coupled to the optic. The intraocular lens also includes a textured surface and/or subsurface layer. The optic is disposed about an optical axis and comprises an anterior surface and an opposing posterior surface, the surfaces being configured to focus light when implanted within an eye having a capsular bag. The textured surface is disposed over a surface portion of the intraocular lens. The subsurface layer is configured to scatter an amount of light that is at least twice the amount of light scattered by portions of the material adjacent the subsurface layer or at least twice the amount of light scattered by another intraocular lens that does not have the subsurface layer, but which is otherwise substantially equivalent.

Abstract: An accommodating intraocular lens for providing a range of accommodative vision contains an optic and a haptic. The optic is disposed about an optical axis and includes an anterior surface and a posterior surface defining a clear aperture of the optic. The haptic is at least partially disposed inside the optic and includes an inner structure, an outer structure, and a plurality of arms disposed between and connecting the inner structure and the outer structure. The inner structure is circumferentially disposed about the optical axis, while the outer structure is circumferentially disposed about the inner structure and has an outer face. Each arm has proximal portion adjacent the inner structure and a distal portion adjacent the outer structure that is bifurcated in a radial direction from the proximal portion. The intraocular lens also has an outer surface defined by outer surfaces of the plurality of arms and an outer surface of the outer structure.

Abstract: A capacitive fluid level sensing arrangement for use in a medical device is provided. The arrangement includes at least one pair of conductive plates configured to increase and decrease the amount of electric charge stored in relation to the level of fluid within a fluid maintaining device, such as a reservoir. The conductive plates are electrically connected to a medical device and are configured to measure the charge stored between the plates and thus sense the fluid level. The electric circuit may communicate the measurement to an instrument host arrangement for operating a pump configured to remove fluid from the reservoir and move the fluid to a collector when the level exceeds a preset upper level amount. The instrument host arrangement may stop operating the pump when the fluid level is reduced to a preset lower level amount.

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: A portal through the sclera for delivery of an effective amount of therapeutic agent to the back of the eye.

Abstract: A phacoemulsification flow rate detection system and method for directly measuring the rate of fluid flowing into and out of the eye during a cataract operation.

Abstract: An apparatus and method for controlling fluid flow provided by an apparatus to a patient's eye during a surgical procedure. The method includes automatically adjusting an irrigation fluid source to a predetermined height during the surgical procedure using the apparatus, receiving a request either that the irrigation fluid source be moved to a different height from the predetermined height or that a manual adjustment mode be entered, and ceasing automatic adjusting and requiring manual adjustment of the height of the irrigation fluid source until the surgical procedure is completed or an indication received to resume automatic height adjustment of the irrigation fluid source. As an alternative, fluid flow rate or intraocular pressure may be maintained, and the design may include making adjustments to default values in other modes based on the adjustment made.