Disclosed are systems, devices, and methods of gonioprism docking with ocular surfaces using vacuum seals for improved conditions during medical procedures on ocular surfaces.

Some embodiments disclosed herein relate to devices and methods for controlling placement of intraocular implants within a patient's eye including but not limited to placement within or near the collector ducts of Schlemm's canal located behind the trabecular meshwork. In some embodiments, a handheld peristaltic rotor device having a compression element can be positioned on a corneal surface of the eye and rotated to create a peristaltic movement of blood in one or more episcleral veins to generate blood reflux within Schlemm's canal such that one or more collector ducts, or channels, of Schlemm's canal can be located. In some embodiments, an implant can be implanted near the identified location of the one or more collector ducts, or channels.

A contact lens assembly for non-sliding, non-sutured, hands-free ophthalmic procedures utilizes a magnetically actuated anchoring mechanism operatively coupled between the contact lens assembly and a modified eye speculum applied to eyelids during ophthalmic procedure. The anchoring mechanism is configured with magnetically cooperating anchoring members, one coupled to the contact lens assembly, and another secured to a wire loop member of the modified eye speculum. After the eye speculum is applied to the eyelids to displace and stabilize the eyelids and secure the anchoring member in place, and the contact lens assembly is placed on the cornea of the eye and centered, he magnetically cooperating anchoring members are brought in contact, and thus secure the contact lens assembly at the surgical site.

An orbital tissue retractor 10 for use in a surgical operation in the region of an eye socket, comprises an orbital tissue retractor body 12 and a handle 14 extending therefrom for manipulation of the tissue retractor body by a surgeon. The tissue retractor body comprises a channel formation 16 defining a channel 17. The channel formation 16 has a pair of spaced side wall sections 24 which define concave curved ocular abutment formations 26 which conform to an anatomical curvature of the ocular globe for abutment with the ocular globe N. The tissue retractor body has open proximal end 22 and an open distal end 20. The tissue retractor body tapers from the proximal end to the distal end, with a portion of the channel formation at the distal end being curved so as to accommodate and cradle the optic nerve therein. The retractor body has a curved base wall section 28 conforming to an anatomical curvature of the orbit.

A patient interface for an ophthalmic system can include an attachment portion, configured to attach the patient interface to a distal end of the ophthalmic system; a contact portion, configured to dock the patient interface to an eye; and a contact element, coupled to the contact portion, configured to contact a surface of a cornea of the eye as part of the docking of the patient interface to the eye, and having a central portion with a central radius of curvature Rc and a peripheral portion with a peripheral radius of curvature Rp, wherein Rc is smaller than Rp.

A laser eye surgery system that has a patient interface between the eye and the laser system relying on suction to hold the interface to the eye. The patient interface may be a liquid-filled interface, with liquid used as a transmission medium for the laser. During a laser procedure various inputs are monitored to detect a leak. The inputs may include a video feed of the eye looking for air bubbles in the liquid medium, the force sensors on the patient interface that detect patient movement, and vacuum sensors directly sensing the level of suction between the patient interface and the eye. The method may include combining three monitoring activities with a Bayesian algorithm that computes the probabilities of an imminent vacuum loss event.

Methods, devices, and systems are presented for inserting an implant in the cornea of the eye, where the implant is a microshunt; a microshunt delivery device for delivering the microshunt into the cornea may comprise the microshunt, an actuator, and a suction stabilizer; a vacuum device may be inserted in the stabilizer such that the cornea may be sucked onto a concave bottom side of the stabilizer; the microshunt may then be inserted into a hole in the suction stabilizer with the actuator; the actuator may be turned to screw the microshunt into a hole in the cornea; and the actuator may be removed from the suction stabilizer, breaking the vacuum seal and leaving the microshunt inserted in the cornea.

The present disclosure provides a system and method for maintaining the position of a suction cone on an eye during laser ophthalmic surgery that includes determining a distance and direction the suction cone or a support must be adjusted to maintain the position of the suction cone within an optimal working range, based on a detected position of the suction cone. The disclosure further provides a method for maintaining the position of a suction cone by determining a distance and direction the suction cone or a support must be adjusted to maintain the position of the suction cone within an optimal working range, based on a detected position of the suction cone. In the system and the method, a control signal is generated to adjust the position of the suction cone and/or the support to maintain the suction cone within the optimal working range.

Techniques are described for generating and using an illumination pattern for corneal topography. The illumination pattern is projected onto an eye of a user wearing a head-mounted assembly. The illumination pattern is based on a reference pattern and corresponds to selective illumination of dots arranged along a two-dimensional grid. An image sensor captures a reflected image produced by reflection of the illumination pattern off the eye. A reflected pattern is identified based on glints in the reflected image and mapped to the reference pattern to generate an aligned reflected pattern. An eye model including a topography of a cornea is calculated by comparing the aligned reflected pattern to the reference pattern to determine a deviation in a shape of the cornea based on a difference between the aligned reflected pattern and the reference pattern. The eye model can be applied in various ways, including for eye tracking or biometric authentication.

This invention is a handheld multipurpose device for standardizing intraocular access for injecting into or obtaining substance(s), content(s), medicine(s), or sample(s) from a human eye(s) or an animal eye(s), in any age group(s), once a specific marker(s) is placed at corneal scleral Limbus. The device is comprising an elongated handle connected to a body having a walled structure with no spaces, one or more space(s) at the bottom; a predesigned curvature(s) in the said device to aid in placement on the surface of the eye; a set or more of track(s) with entry and exit port(s) travelling within the wall(s) at a certain angle and length; a groove that outlines the outer walls limited above and below by projections; a needle hub adapter(s) and/or receiver(s) that allows universal attachment of any injecting device(s) with an opening to the bottom of the device; a projecting marker(s) on one or more sides that indicates where the whole device should rest on the eye at the Cornea-Sclera junction called Limbus; a large opening/window at the bottom of the said device allowing access to all structures of the anterior segment of the eye; and a larger opening(s) and/or window(s) allowing a reservoir function, as well as access to posterior segment and a set of repeated projections from the underside of the device to facilitate gripping to the eye tissue underneath.