This disclosure relates generally to methods and devices for use in viewing and positioning an eye with a gonio lens system, such as during ocular exams and ocular surgeries. Some embodiments of the gonio lens system can include a gonio lens for viewing one or more tissues and structures of the eye. In addition, the gonio lens system can include one or more positioning features for controlling movement positioning of the eye.

An apparatus and a method for cutting or ablating corneal tissue of an eye provide for detection of electromagnetic radiation exiting the eye. A detector is provided and coupled to a computer controlling the cutting or ablating laser radiation so that a two- or three-dimensional image of radiation exiting the eye can be generated.

One embodiment is directed to a method for interfacing an ophthalmic intervention system with an eye of a patient, comprising: placing a patient interface assembly comprising a housing, an optical lens coupled to the housing, and an eye engagement assembly coupled to the housing, the eye engagement assembly comprising an inner seal and an outer seal, into contact with the eye of the patient by sealably engaging the eye with the inner and outer seals in a vacuum zone defined between the inner and outer seals; applying a vacuum load between the inner and outer seals to engage the eye using the vacuum load; and physically limiting an amount of distension of the eye in the vacuum zone.

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 patient interface assembly for interfacing an ophthalmic intervention system with an eye of a patient includes a housing, an optical lens coupled to the housing, an eye engagement assembly coupled to the housing, the eye engagement assembly including an inner seal and an outer seal, and a tissue migration bolster structure positioned between the inner seal and outer seal and configured to apply a resisting load against portions of the eye in a vacuum zone which are capable of distending upon application of the vacuum load. The eye engagement assembly is adapted to be placed into contact with the eye of the patient by sealably engaging the eye with the inner and outer seals, thereby defining the vacuum zone as being between the inner and outer seals when placed into contact with the eye.

An ophthalmic infusion support and associated methods are shown. The ophthalmic infusion support devices include a base unit, a fixation device coupled to a bottom surface of the base unit, and an infusion tube holding device configured to hold a loop of an infusion tube at an angle projecting upward from a patient.

Techniques are described for generating and using an illumination pattern for corneal topography. In some examples, the illumination pattern is projected over a sequence of frames, including a first frame with a first pattern of dots arranged along a two-dimensional grid, and a second frame with a second pattern of dots arranged along the two-dimensional grid. The first pattern differs from the second pattern with respect to a wavelength of light used to project one or more dots, a position of one or more dots, or both. After the illumination pattern has been determined, it can be projected over the sequence of frames and onto an eye of a user. Reflections of the illumination pattern as projected over the sequence of frames can then be used to calculate an eye model characterizing a topography of a cornea of the eye of the user.

An ophthalmic infusion support and associated methods are shown. Example infusion support devices include a base unit, a fixation device coupled to the bottom surface of the base unit, and an infusion tube holding device configured to hold a loop of an infusion tube an angle projecting upward from the patient.