Abstract:
A method of cataract surgery in an eye of a patient includes identifying a feature selected from the group consisting of an axis, a meridian, and a structure of an eye by corneal topography and forming fiducial mark incisions with a laser beam along the axis, meridian or structure in the cornea outside the optical zone of the eye. A laser cataract surgery system a laser source, a topography measurement system, an integrated optical subsystem, and a processor in operable communication with the laser source, corneal topography subsystem and the integrated optical system. The processor includes a tangible non-volatile computer readable medium comprising instructions to determine one of an axis, meridian and structure of an eye of the patient based on the measurements received from topography measurement system, and direct the treatment beam so as to incise radial fiducial mark incisions.
Abstract:
A laser eye surgery system produces a treatment beam that includes a plurality of laser pulses. An optical coherence tomography (OCT) subsystem produces a source beam used to locate one or more structures of an eye. The OCT subsystem is used to sense the distance between a camera objective on the underside of the laser eye surgery system and the patient's eye. Control electronics compare the sensed distance with a pre-determined target distance, and reposition a movable patient support toward or away the camera objective until the sensed distance is at the pre-determined target distance. A subsequent measurement dependent upon the spacing between the camera objective and the patient's eye is performed, such as determining the astigmatic axis by observing the reflection of a plurality of point source LEDs arranged in concentric rings off the eye.
Abstract:
A mobile patient bed may be used for moving a patient between at least two locations during a medical procedure. The mobile patient bed may comprise an interface configured to selectively couple the mobile patient bed to at least one medical system and at least one processor configured to receive a medical system command via the interface and process the medical system command when the mobile patient bed is coupled to the at least one medical system, receive and process a user command when the mobile patient bed is not coupled to the at least one medical system, and refrain from processing the user command when the mobile patient bed is coupled to the at least one medical system. The mobile patient bed may also comprise a seat and a plurality of motors configured to independently position the seat along a plurality of axes.
Abstract:
A mobile patient bed may be used for moving a patient between at least two locations during a medical procedure. The mobile patient bed may comprise an interface configured to selectively couple the mobile patient bed to at least one medical system and at least one processor configured to receive a medical system command via the interface and process the medical system command when the mobile patient bed is coupled to the at least one medical system, receive and process a user command when the mobile patient bed is not coupled to the at least one medical system, and refrain from processing the user command when the mobile patient bed is coupled to the at least one medical system. The mobile patient bed may also comprise a seat and a plurality of motors configured to independently position the seat along a plurality of axes.
Abstract:
A mobile patient bed may be used for moving a patient between at least two locations during a medical procedure. The mobile patient bed may comprise an interface configured to selectively couple the mobile patient bed to at least one medical system and at least one processor configured to receive a medical system command via the interface and process the medical system command when the mobile patient bed is coupled to the at least one medical system, receive and process a user command when the mobile patient bed is not coupled to the at least one medical system, and refrain from processing the user command when the mobile patient bed is coupled to the at least one medical system. The mobile patient bed may also comprise a seat and a plurality of motors configured to independently position the seat along a plurality of axes.
Abstract:
An ophthalmic measurement and laser surgery system includes: a laser source; a corneal topography subsystem; an axis determining subsystem; a ranging subsystem comprising an Optical Coherence Tomographer (OCT); and a refractive index determining subsystem. All of the subsystems are under the operative control of a controller. The controller is configure to: operate the corneal topography subsystem to obtain corneal surface information; operate the axis determining subsystem to identify one or more ophthalmic axes of the eye; operate the OCT to sequentially scan the eye in a plurality of OCT scan patterns, the plurality of scan patterns configured to determine an axial length of the eye; operate the refractive index determining subsystem so to determine an index of refraction of one or more ophthalmic tissues, wherein at least one of the corneal surface information, ophthalmic axis information, and axial length is modified based on the determined index of refraction.
Abstract:
A mobile patient bed may be used for moving a patient between at least two locations during a medical procedure. The mobile patient bed may comprise an interface configured to selectively couple the mobile patient bed to at least one medical system and at least one processor configured to receive a medical system command via the interface and process the medical system command when the mobile patient bed is coupled to the at least one medical system, receive and process a user command when the mobile patient bed is not coupled to the at least one medical system, and refrain from processing the user command when the mobile patient bed is coupled to the at least one medical system. The mobile patient bed may also comprise a seat and a plurality of motors configured to independently position the seat along a plurality of axes.
Abstract:
Methods and apparatus are configures to measure an eye without contacting the eye with a patient interface, and these measurements are used to determine alignment and placement of the incisions when the patient interface contacts the eye. The pre-contact locations of one or more structures of the eye can be used to determine corresponding post-contact locations of the one or more optical structures of the eye when the patient interface has contacted the eye, such that the laser incisions are placed at locations that promote normal vision of the eye. The incisions are positioned in relation to the pre-contact optical structures of the eye, such as an astigmatic treatment axis, nodal points of the eye, and visual axis of the eye.
Abstract:
A fiducial is generated on an internal anatomical structure of the eye of a patient with a surgical laser. A tonic artificial intraocular lens (IOL) is positioned so that a marker of the tonic IOL is in a predetermined positional relationship relative to the fiducial. This positioning aligns the tonic IOL with the astigmatic or other axis of the eye. The toric IOL is then implanted in the eye of the patient with high accuracy.