Abstract: A pupil expander is disclosed. The pupil expander comprises a support member sized to expand a pupil and a plurality of engaging portions. The plurality of engaging portions are coupled to and spaced about the support member. The engaging portions have a recess and are shaped and sized to receive an inner margin of an iris.

Abstract: An ophthalmic surgical system 10 detects a change in a viscosity of a material being aspirated from an eye 32. The system 10 includes a control module 18 connected to an aspiration pump 20, and a flow meter 19 connected to the control module 18 and the aspiration pump 20. The flow meter 19 provides a flow rate of material aspirated from the eye 32 by the aspiration pump 20. A surgical handpiece 24 connected to the aspiration pump 20 and the control module 18 is inserted into the eye 32 during surgery. The control module 18, during surgery, detects a step change in the flow rate of material aspirated from the eye 32 and the control module 18 further causes the surgical system 10 to alert a surgeon that a change in viscosity of the material being aspirated has been detected indicating that the handpiece 24 has moved from a material of a first viscosity to a material of a second viscosity.

Abstract: Proper selection and centering of an intraocular lens (IOL) is provided. An image of an eye, which may be captured during pre-operative tests and provided to a program operable to calculate the power and axis orientation of the IOL, is used to determine the location and orientation of the IOL. This produces an output or placement guide used to properly center and orient an IOL within the eye.

Abstract: A cap configured and dimensioned to sweep or fold one or more haptics when removed from an insertion device. The cap may further have a pin, one or more snaps and/or one or more locks. The cap may also have one or more ports and/or one or more windows. An insertion system having a handpiece, a cartridge, and a cap configured and dimensioned to sweep or fold one or more haptics when the cap is removed from the insertion system. The cap is configured and dimensioned to couple with the distal end of the cartridge.

Abstract: The present disclosure relates to a contact tens comprising a channel extending therethrough, an ocular device configured to engage with the channel, and related kits and methods that provide for improved contact lens insertion, cleaning and removal, as well as ocular safety and health.

Abstract: A phacoemulsification probe includes a first portion for interconnecting the probe with a phacoemulsification machine. A probe tip has a first end connected with the first portion and a second end curved up to a predetermined angle. The probe tip defines a channel therein for aspirating material through the probe tip from a surgical region.

Abstract: An intraocular lens inserter can include an energy storage portion, an actuator portion, and a lens support portion. The energy storage portion can include a compressible energy storage device, such as a compressible fluid, springs, and other devices. The inserter can include an actuator portion operating with a substantially incompressible fluid, such as liquids or other noncompressible fluids. The actuator can be configured to provide an operator with control over the release of energy from the energy storage portion so as to move a plunger for the discharge of a lens from an intraocular lens cartridge.

Abstract: An apparatus and method for controlling fluid flow to an ocular region is provided. The apparatus includes a control unit having a processor, a user interface configured to receive data from the processor and provide information to an operator, and a memory unit configured to provide information to the processor. The memory unit includes a lookup table configured with a plurality of fluid parameter related conditions potentially expected to be encountered during a phacoemulsification procedure and a plurality of warning entries, each warning entry associated with fluid parameter related conditions potentially expected to be encountered during the phacoemulsification procedure. Each warning entry corresponding to a level of performance outside a predetermined range is conveyed to the operator via the user interface and in certain instances functionality of the apparatus may be altered.

Abstract: A system and method for the use of magneto-rheological fluids (MRF) and magnetically controlled elastomers (MCE) for use in fluid control and distribution apparatus which are responsive to control by a magnetic field are disclosed.

Abstract: In a first aspect of the subject invention, an iris expander is provided which includes a non-metallic, unitary, multi-segmented body which is expandable from a first state to a second state. The second state defines a larger footprint than the first state with the body being defined by a plurality of segments connected by living hinges. In a further aspect, an iris expander is provided which includes a multi-segmented body that is expandable from a first state to a larger-footprint second state. At least one aperture is formed in the body with a channel extending therefrom embedded in the body such that no portion thereof is exposed externally of the body. The channel is formed to accommodate a portion of an instrument for causing adjustment of the body with avoidance of direct contact of the instrument with the tissue of the iris.

Abstract: The present inserter, system and method suitable for inserting the IOL may include a lumen having an outer wall and an inner wall, the inner wall including at least one hollowed portion; a plunger for advancing along the lumen, the plunger having a plunger shaft extending into the open proximal end and terminating at a distal plunger end; a reservoir within the lumen between the distal plunger end and the distal insertion tip, the reservoir having an opening that is misaligned with the at least one hollowed portion prior to advancing of the plunger, and that is aligned with the at least one hollowed portion during advancing of the plunger; and a viscous fluid within the lumen, wherein the viscous fluid flows along a bypass formed of the at least one hollowed portion and the opening and into said reservoir, thereby decreasing an inserting displacement force effected at the distal insertion tip from a plunger displacement force applied to said plunger.

Abstract: This intraocular lens (IOL) injector cartridge has a proximal opening in a main body for receiving an IOL. The main body has a lumen that extends longitudinally to a distal end having an opening smaller than the IOL. Passage through the lumen compresses or rolls the IOL so that when the distal end is inserted through a small incision in the eye the IOL can be expelled into the capsular bag. The distal end of the cartridge is beveled with a leading tip in front of a trailing heel. The characteristics of the beveled end are such that damage to the IOL is reduced. The bevel may be straight or curved and includes a distal face defined by the thickness of the distal end between the lumen and an exterior surface. The distal face may be flush with the bevel or chamfered. An inner corner angle between the distal face and the lumen is ?60° to reduce the chance of scratching the IOL as it passes out of the distal opening.

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: Various systems and techniques for inserting an intraocular lens are disclosed. In particular implementations, a system and a technique for inserting an intraocular lens may include the ability to move, in response to a force being applied in a first direction along a longitudinal axis, a first plunger tip along the longitudinal axis and into a delivery cartridge to fold an intraocular lens and move in a second direction along the longitudinal axis in response to the applied force being reduced. The system and the technique may also include the ability to engage a second plunger tip and move, in response to a force being applied in the first direction along the longitudinal axis, the second plunger tip along the longitudinal axis and into the delivery cartridge to insert the intraocular lens.

Abstract: A phacoemulsification needle having a hollow passageway terminates in a straight needle tip formed off-axis from the passageway, allowing the needle tip to move eccentrically when the needle is subjected to torsional or longitudinal vibratory motion. The tip may be flared or may be coextensive with the needle body. The aspiration passageway formed through the needle body may be formed off-axis from the needle body axis. The tip may also be angled with respect to the needle body. The inner and outer surfaces of the needle tip are roughened, as by sandblasting, to enhance the cutting effect of the tip when used with a non-longitudinal handpiece. The lip of each needle tip is polished to a high degree of smoothness and the edges of the tip are rounded to lessen the incidence of snags or cuts.

Abstract: Described is a medicament delivery device comprising a body adapted to accommodate a cartridge containing a medicament, and a reservoir coupled to the body, the reservoir containing a fluid and a plunger. The cartridge is axially movable relative to the body between a retracted position and an extended position. Axial movement of the cartridge from the retracted 10 position to the extended position moves the plunger to expel the fluid from the reservoir.

Abstract: An intraocular lens (IOL) delivery device is disclosed. The device includes an intraocular lens cartridge having an internal coating wherein the coating includes a polymeric material that is compatible with a polymeric material of a material that forms the cartridge. Preferably, the polymeric material of the coating, the cartridge or both is a polyurethane material.

Abstract: A needle for a surgical instrument for removal of diseased or unwanted tissue is described. The needle has a hollow elongate needle shaft with a needle tip at a distal end for cutting tissue. The needle tip is flared in at least one plane and has a plurality of grooves milled into a surface of the tip in an asymmetric arrangement around the circumference of the needle tip.

Abstract: A method and apparatus for performing modulated fluid delivery and aspiration during a surgical procedure such as phacoemulsification is provided. The method and apparatus include delivering fluid and/or aspirating fluid in a modulated or pulsed manner during a surgical procedure, including applying fluid and/or aspirating fluid in connection with ultrasonic energy at a level and for a time period sufficient to induce transient cavitation. Fluid may be applied and/or aspirated at a timing sequence and duty cycle similar to or different from application of ultrasonic energy delivery.

Abstract: In accordance with various embodiments, an intraocular manipulator is disclosed which uses negative pressure to grasp and/or manipulate an intraocular object, for example, an IOL, a crystalline lens, or an intraocular foreign body. The device comprises a tip, a stem, and a suction source. The device may be a handheld device with the negative pressure controlled by a foot pedal. Similarly, the device may be used in conjunction with other intraocular devices.

Abstract: An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger.

Abstract: An intraocular lens insertion tool including: a cylindrical tool body provided with a placement part at which is placed an intraocular lens having an optical part, and a pair of support parts extending from either side of the optical part; and a plunger for pushing out the intraocular lens; the intraocular lens insertion tool being provided in a state in which the intraocular lens is preset in the placement part, wherein at least one of the front support part extending toward a tip end of the tool body and the rear support part extending toward a rear end of the tool body is pre-deformed by abutting against an abutting projection disposed inside the placement part.

Abstract: The present disclosure is directed to devices, systems, and methods directed to mounting a plunger tip to a plunger of an IOL injection device. A plunger tip wrench that is operable to releasably retain a plunger tip may be coupled to a holder extending from an end of the IOL injection device to align the plunger tip with the plunger of the IOL injection device. In some instances, the IOL injection device may include a motor and use a back electromotive force (EMF) of the motor to detect a position of the plunger as it is extended to engage the plunger tip. The plunger tip may be positioned relative to the plunger such that the plunger will engage the plunger tip within the entire range of a negative error position and a positive error position.

Abstract: A cartridge for implantation of a deformable intraocular lens (IOL) through a small incision in the eye, including a body portion including a first section including a first lens delivery passageway configured to contain an IOL readied for implantation, and a second section including a second lens delivery passageway connected to the first passageway, configured to fold the IOL when the IOL is pushed through the second passageway, and a nozzle portion extending from the body portion, the nozzle portion including a third passageway and a tip for insertion through the incision in the eye, the second passageway extending to the third passageway, the third passageway configured to transfer the folded IOL into an incision in an eye when the folded IOL is pushed through the nozzle. Related apparatus and methods are also described.

Abstract: A surgical device and procedure are provided for smoothly and easily accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision in the cornea of the eye. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position on the lens capsule. A cutting element mounted to the suction cup is used to cut a portion of the lens capsule and to remove the portion from the eye.

Abstract: An injector for inserting an intraocular lens into an eye includes a lumen. The lumen can include a terminal portion at a distal end and a proximal portion juxtaposed with the terminal portion. An injector plunger can be disposed within the lumen for generating a driving force on the intraocular lens. The injector can include a lens frictional force that has a first value when the lens is at a first location within the proximal portion and a second value when the lens is at a second location within the terminal portion. The first value can be smaller than the second value. In some embodiments, the lens frictional force increases abruptly from the first value to the second value as the lens approaches the distal end of the lumen.

Abstract: A vitreotomy device comprises a body extended by a cannula. The cannula has a closed distal end; it includes a window in its side wall close to said distal end. It houses a needle driven with reciprocating motion and capable of periodically closing said window. The device further comprises suction means connected to the needle, and a double-acting cylinder provided with a moving piston for controlling the movement of said needle. In said device, the needle is driven with reciprocating motion in translation in said cannula; said piston of the double-acting cylinder is secured directly to said needle; as a result, its movements enable the needle to be moved into a first position in which said needle closes said window, and a second position in which the needle leaves said window open. The device makes it possible to control very accurately the lengths of time for which the end of the cannula is open and closed.

Abstract: A system for easily transferring an intraocular lens (IOL) from an inserter into a patient's eye. The system includes an inserter handpiece with a holding station for receiving or storing an IOL. The IOL may be pre-loaded within the holding station during manufacture, and the inserter handpiece coupled to a delivery tube so that the entire system is ready for use by a surgeon to implant an IOL. The IOL may have an optic and leading and trailing haptics coupled to the optic, and the holding station may be capable of manipulating the haptics as desired to facilitate transfer of the IOL through the delivery tube into the eye. For instance, the holding station may fold one or both of the haptics over the optic. Preferably, the holding station maintains the haptics in their folded positions during transfer of the IOL into the delivery tube. The holding station desirably maintains the IOL in a relaxed configuration during storage.

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: The present disclosure is directed to devices, systems, and methods directed to mounting a plunger tip to a plunger of an IOL injection device. A plunger tip wrench that is operable to releasably retain a plunger tip may be coupled to a holder extending from an end of the IOL injection device to align the plunger tip with the plunger of the IOL injection device. In some instances, the IOL injection device may include a motor and use a back electromotive force (EMF) of the motor to detect a position of the plunger as it is extended to engage the plunger tip. The plunger tip may be positioned relative to the plunger such that the plunger will engage the plunger tip within the entire range of a negative error position and a positive error position.

Abstract: There is provided an intraocular lens insertion device capable of appropriately regulating the motion of a rear supporting portion during a process of moving an intraocular lens, and reducing the possibility of reoperation being required after the intraocular lens is inserted into an eye. An intraocular lens insertion device 1 comprises a main body 2, and a slider 3 and a plunger 4 that are attached to the main body 2. Further, the intraocular lens insertion device 1 is of a preset type in which an intraocular lens 5 is placed inside the main body 2 in advance. The slider 3 includes a first abutting portion 21 for pushing up a supporting portion 7 (rear supporting portion 7a) arranged on a rear side of an optical part 6 with respect to a lens advancement axis A, and second abutting portions 22a, 22b abutting against an outer edge of a rear portion of the optical part 6.

Abstract: Shunt devices and a method for continuously decompressing elevated intraocular pressure in eyes affected by glaucoma by diverting excess aqueous humor from the anterior chamber of the eye into Schlemm's canal where post-operative patency can be maintained with an indwelling shunt device which surgically connects the canal with the anterior chamber. The shunt devices provide uni- or bi-directional flow of aqueous humor into Schlemm's canal.

Abstract: A rear-loaded injector cartridge for an intraocular lens (IOL) having a proximal opening that provides a haptic slot. The haptic slot receives a leading haptic of an IOL loaded therein, and temporarily retains the leading haptic while the optic of the IOL is inserted into a holding area of the cartridge. As the optic passes by, the leading haptic folds over the top of the optic, on its anterior side. The length of the haptic retention slot is sufficient to maintain the leading haptic in its anteriorly folded position while the IOL remains in holding area typically while the cartridge is mated with a handpiece of the injector. The cartridge also has a rear or proximal cut out which advantageously keys with a similarly-sized rail on the handpiece so that the cartridge cannot be inserted in the wrong way.

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 50D 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 instrument for inserting an intraocular lens capable of securely and safely pushing out the lens by a simple structure. An instrument (1) for inserting comprises: a body (3) having a lens placement part (8) on which the lens (2) with a pair of loop parts (2b) at its optic part (2a) is installed, a transition part (12) deforming the lens (2), and a nozzle part (11) discharging the lens (2); and a lens push-out mechanism (4) pushing out the lens (2) placed on the lens placement part (8). The lens push-out mechanism (4) comprises a plunger (16) pushing out the lens (2) and a slider (15) having a lens contact part (20) larger than the plunger (16). The slider (15) comprises an operation part (23) projected to the outside of the body (3).

Abstract: An intraocular insertion device (1) capable of safely performing discharge operation of a lens (2) by a simpler construction. The intraocular lens insertion device (1) has a body (5) provided with a lens placement section (3) where the lens (2) is placed and a tube section (4) for inserting the lens (2) into an eye and has a plunger (6) for discharging the lens (2) placed on the lens placement section (3). The lens placement section (3) has an upper holding member (12) and a lower holding member (14). The upper holding member (12) has a rib (15) projecting on advancement axis A, to the lower side of the lens placement section (3). The lower holding member (14) has a U-shaped cross-section and is constituted of a left and right pair of uprising sections (18) and a pressing section (20) uniting the uprising sections (18) at their lower ends.

Abstract: An insertion device is disclosed which is suitable for use of liquid as lubricant such as normal saline. The insertion device for inserting a lens into an eye comprises a main body having a nozzle at its front end, and a pushing member for pushing the lens set in the main body into an eye through the nozzle. The pushing member includes an introducing portion through which liquid is introduced and a flow path for supplying the liquid introduced from the introducing portion into the main body.

Abstract: Methods for detecting a coating on a surface of an intraocular lens delivery device and methods of manufacturing the device are provided. A method includes forming the coating on the device, the coating including a lubricious-enhancing component and a fluorescing component, illuminating the fluorescing component to cause the fluorescing component to emit a glow, and determining characteristics of the coating on the device based on the glow of the fluorescing component.

Abstract: A system for implanting an intraocular lens in the lens capsule of an eye to treat an ocular condition includes a housing, a plunger, and an electric motor configured to cause longitudinal translation of the plunger. A cartridge mount may accommodate a removable insertion cartridge so that an intraocular lens disposed in the insertion cartridge is displaced from the insertion cartridge as the plunger is translated. A controller electrically communicates with the electric motor and powers the electric motor to translate the plunger and displace the intraocular lens. The controller may be configured to detect motor current feedback in the control circuit and may be configured to compare the detected motor current feedback to a stored current profile and to stop translation of the plunger when the current level deviates from the stored current profile by a pre-stored amount.

Abstract: An instrument (110) for rolling a thin ophthalmic lens and inserting the rolled lens into the eye comprises a body (112) in which a plunger (124) is slidable. A thin lens (156) is placed on a lens roller (130) which is slidable transversely of the instrument. The lens is rolled during the sliding movement into a tubular configuration. The rolled lens is then positioned in the instrument in a cylindrical cavity and ready for contact by a push-rod of the plunger (124) so that it is delivered from the instrument through a box in a tip portion (114) of the instrument.

Abstract: An intraocular lens insertion device which dramatically reduces the possibility that a plunger damages an intraocular lens, and which can safely and surely insert an intraocular lens into an eye is provided. An intraocular lens insertion unit comprises a lens disposing part for disposing an intraocular lens, a plunger for pushing out the intraocular lens disposed at the lens disposing part, a transition part for deforming the intraocular lens pushed out by the plunger, and a nozzle for ejecting the deformed intraocular lens. The plunger has a lens contact part for contacting the outer edge of the intraocular lens, and a protrusive part for pushing the lens contact part downward the intraocular lens by the deformation of the intraocular lens, both lens contact part and protrusive part are provided at the leading end of the plunger.

Abstract: An intraocular lens insertion tool is presented. An introductory part in an insertion cylinder is provided, at a widthwise central portion of a bottom surface, with a central protrusion which extends in an axial direction of a tool body and protrudes toward an upper surface to get in contact with a center portion of a rear surface of an optical zone of an intraocular lens. The upper surface is provided, at its both widthwise ends, with a pair of lateral protrusions, which extend in the axial direction of the tool body and protrude toward the bottom surface to get in contact with both ends of a front surface of the optical zone of the intraocular lens. A lens pressing face of a plunging member is formed with a dimension spanning from the bottom surface to the upper surface at a tip end section of the insertion cylinder.

Abstract: A method for implanting an intraocular lens into the eye of a subject includes placing the intraocular lens into the eye of a subject and administering a drug in an amount sufficient to maintain an accommodative state of the eye. The method further includes permitting at least a portion of the intraocular lens to become coupled to at least a portion of the eye while maintaining the eye in the accommodative state. In certain embodiments, the method may include forming an intraocular lens while maintaining an accommodative state of the eye. In such embodiments, the method may exclude permitting at least a portion of the intraocular lens to become coupled to at least a portion of the capsular bag.

Abstract: Intraocular lens delivery devices and methods of use.

Abstract: Systems, devices and methods for performing small incision DLEK include providing a corneal transplantation donor tissue graft; then forming the tissue graft into an implantable configuration using the flexible substrate. Related medical kits and tools for forming a compact or rolled donor tissue graft are also described.

Abstract: An intraocular lens delivery system includes an injector body having a bore surrounded by an inner wall. The system further includes a plunger configured to fit within the bore. The system also includes a plurality of deflectable members connected to the plunger and configured to contact the inner wall and to be deflected when the plunger is inserted within the bore. The deflectable members center the shaft and, when inserted within the injector body, contribute to producing a predetermined force resisting advancement of the plunger when deflected in the bore.

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: An IOL injector cartridge, comprising an upper wall, a lower wall, the upper wall and the lower wall combining to define a lumen that extends from a proximal end to a distal end, a slot extending through the entire thickness of the upper wall and extending from the proximal end and having a slot distal end formed by the upper wall, an edge of the upper wall that, at least partially defines the slot, having a convex curvature, the curvature occurring along the thickness of the edge.

Abstract: A method of loading an IOL having an optic and a leading haptic into a cartridge, comprising folding the leading haptic radially inward relative to the optic as the IOL moves into a lumen of the cartridge, by using a proximal end feature of the cartridge.

Abstract: An injector system for implanting an intraocular lens into an eye includes an injector body having a front and rear ends; a cannula arranged at the front end, which provides a transport channel for a lens to be implanted; a magazine with a receptacle area for a lens which is securable in the receptacle area by a retainer, the magazine being arranged so that a lens can be fed into the transport channel via the preferably lateral inlet opening; a folding body insertable into the magazine and into the inlet opening, for pushing the lens into the transport channel in a manner so that the lens is partially foldable around the folding body; and a slider which is slideably arranged in the injector body and which can be pushed into the transport channel via the front end so that the lens can be ejected from the transport channel.