Abstract: A method of treating a lens of a patient's eye includes generating a light beam, deflecting the light beam using a scanner to form a treatment pattern of the light beam, delivering the treatment pattern to the lens of a patient's eye to create a plurality of cuts in the lens in the form of the treatment pattern to break the lens up into a plurality of pieces, and removing the lens pieces from the patient's eye. The lens pieces can then be mechanically removed. The light beam can be used to create larger segmenting cuts into the lens, as well as smaller softening cuts that soften the lens for easier removal.

Abstract: An optical measurement system method for measuring a characteristic of a subject's eye use a probe beam having an infrared wavelength in the infrared spectrum to measure a refraction of the subject's eye at the infrared wavelength; capture at least two different Purkinje images at two different corresponding wavelengths from at least one surface of the lens of the subject's eye; determine from the at least two different Purkinje images a value for at least one parameter of the subject's eye; use the value of the at least one parameter to determine a customized chromatic adjustment factor for the subject's eye; and correct the measured refraction of the subject's eye at the infrared wavelength with the customized chromatic adjustment factor to determine a refraction of the subject's eye at a visible wavelength in the visible spectrum.

Abstract: Swept source optical coherence tomography (SS-OCT) systems and methods may employ down-conversion. Down-converter systems and methods may utilize a distribution element and a frequency down shifter. The distribution element may receive an output signal of a photo detection device, the output signal comprising a first frequency component at or below a maximum conversion frequency and a second frequency component above the maximum conversion frequency. The distribution element may send the first frequency component to an analog to digital (A/D) converter and send the second frequency component to a frequency down shifter. The frequency down shifter may down shift the second frequency component to a frequency at or below the maximum conversion frequency to form a down shifted second frequency component. The frequency down shifter may send the down shifted second frequency component to the A/D converter.

Abstract: A patient interface device includes: a first interface port configured to be interfaced with a laser surgery apparatus; a second interface port configured to be interfaced with a patient's eye, the second interface port including an applanating lens for application to a patient's eye during a laser surgery procedure; a chamber extending between the first interface port and the second interface port and defining a chamber therein, wherein air may be evacuated from the chamber by the laser surgery apparatus via the first interface port; and a tubular light guiding structure having at a first end thereof a light receiving surface, configured to receive light, and having at a second end thereof a light-emitting surface, wherein the second surface is disposed adjacent the applanating lens and configured to provide the light in a vicinity of the patient's eye when the applanating lens is applied to the patient's eye.

Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.

Abstract: In a laser delivery system for an ophthalmic laser surgery system, a laser beam scanner employs a single or two MEMS micromirror arrays. Each micromirror in the array is capable of being independently actuated to rotate to desired angles. In one embodiment, one or two micromirror arrays are controlled to scan a laser beam in two directions. In another embodiment, a micromirror array is controlled to both correct optical aberrations in the laser beam and scan the laser beam in two directions. In yet another embodiment, a micromirror array is controlled to cause the laser beam to be focused to multiple focal spots simultaneously and to scan the multiple focal spot simultaneously. The ophthalmic laser surgery system also includes an ultrashort pulse laser, a laser energy control module, focusing optics and other optics, and a controller for controlling the laser beam scanner and other components of the system.

Abstract: Systems, methods, and computer program products are provided for the administration of ablation profiles during refractive surgery treatments. Basis data framework techniques enable the implementation of ablation profiles having various shapes, resulting in increased ablation accuracy when treating certain vision conditions. Exemplary basis data architecture approaches are configured to efficiently operate with annular, elliptical, and slit laser beam shapes.

Abstract: A compact system for performing laser ophthalmic surgery is disclosed. An embodiment of the system includes a mode-locked fiber oscillator-based ultra-short pulsed laser capable of producing laser pulses in the range of 1 nJ to 5 ?J at a pulse repetition rate of between 5 MHz and 25 MHz, a resonant optical scanner oscillating at a frequency of 200 Hz and 21000 Hz, a scan-line rotator, a movable XY-scan device, a z-scan device, and a controller configured to coordinate with the other components of the system to produce one or more desired incision patterns. The system also includes compact visualization optics for in-process monitoring using a beam-splitter inside the cone of a patient interface used to fixate the patient's eye during surgery. The system can be configured such that eye surgery is performed while the patient is either sitting upright, or lying on his or her back.

Abstract: A system for ophthalmic surgery includes a laser source configured to deliver an ultraviolet laser beam comprising laser pulses having a wavelength between 320 nm and 370 nm to photodecompose one or more intraocular targets within the eye with chromophore absorbance. The pulse energy, the pulse duration, and the focal spot are such that an irradiance at the focal spot is sufficient to photodecompose the one or more intraocular targets without exceeding a threshold of formation of a plasma and an associated cavitation event. An optical system operatively coupled to the laser source and configured to focus the ultraviolet laser beam to a focal spot and direct the focal spot in a pattern into the one or more intraocular targets. The optical system focuses the laser beam at a numerical aperture that provides for the focal spot to be scanned over a scan range of 6 mm to 10 mm.

Abstract: A method of verifying a laser scan at a predetermined location within an object includes imaging at least a portion of the object, the resulting image comprising the predetermined location; identifying the predetermined location in the image, thereby establishing an expected scan location of the laser scan in the image; performing a laser scan on the object by scanning a focal point of the laser beam in a scanned area; detecting a luminescence from the scanned area and identifying an actual scanned location within the image based on the detected luminescence; and determining whether the difference between the actual scanned location and the expected scan location is within a threshold value.

Abstract: A patient interface includes an eye interface device, a scanner, a first support assembly, and a beam source. The eye interface device is configured to interface with an eye of a patient. The scanner is configured to be coupled with the eye interface device and operable to scan an electromagnetic radiation beam in at least two dimensions in an eye interfaced with the eye interface device. The scanner and the eye interface device move in conjunction with movement of the eye. The first support assembly supports the scanner so as to accommodate relative movement between the scanner and the first support assembly parallel so as to accommodate movement of the eye. The beam source generates the electromagnetic radiation beam. The electromagnetic radiation beam propagates from the beam source to the scanner along an optical path having an optical path length that varies in response to movement of the eye.

Abstract: An OCT system for imaging multiple depth positions includes a light source, a sample arm and two or more reference arms. The sample arm propagates light to the object and directs object return light having a first return light beam from a first position and a second return light beam from a second position, the second return light having a dispersion level higher than the first return light beam by a dispersion difference amount. The first and second reference arms produce light beams having substantially the same dispersion as the first and second return light beams, respectively. The optical pathway combines all of the object return light and the reference light beams. An OCT detector measures the resulting interferogram. Imaging information is obtained for both the first position and the second position based on the dispersion difference amount.

Abstract: An optical imaging system for an ophthalmic laser beam delivery system, which includes a focusing objective including a plurality of lenses, a semi-transparent folding mirror disposed near an entrance of the focusing objective for reflecting a treatment laser beam into the focusing objective, a prism disposed adjacent a back surface of the folding mirror, the prism having a first, a second and a third surface, the second surface being disposed adjacent the back surface of the folding mirror, the prism being configured to reflect a light that has entered the second surface sequentially by the first surface and by the second surface toward the third surface to be output, a focusing lens module disposed adjacent the third surface of the prism to focus light output from the third surface of the prism, and an image sensor disposed to receive the light focused by the focusing lens module to form an image.

Abstract: A method for laser eye surgery that accommodates patient movement includes: generating a first and a second electromagnetic radiation beam, the second beam configured to modify eye tissue; propagating the first beam to a scanner along a an optical path length that changes in response to eye movement; focusing the first beam to a first focal point within the eye; scanning the first focal point at different locations within the eye; propagating a portion of the first beam reflected from the first focal point location back along the variable optical path to a sensor; generating an intensity signal indicative of the intensity of the portion of the reflected first beam; propagating the second beam to the scanner along the variable optical path; focusing the second beam to a second focal point and scanning the second focal point to create an incision in the cornea of the eye.

Abstract: A system and method for inserting an intraocular lens in a patient's eye includes a light source for generating a light beam, a scanner for deflecting the light beam to form an enclosed treatment pattern that includes a registration feature, and a delivery system for delivering the enclosed treatment pattern to target tissue in the patient's eye to form an enclosed incision therein having the registration feature. An intraocular lens is placed within the enclosed incision, wherein the intraocular lens has a registration feature that engages with the registration feature of the enclosed incision. Alternately, the scanner can make a separate registration incision for a post that is connected to the intraocular lens via a strut member.

Abstract: An imaging system includes an eye interface device, a scanning assembly, a beam source, a free-floating mechanism, and a detection assembly. The eye interface device interfaces with an eye. The scanning assembly supports the eye interface device and scans a focal point of an electromagnetic radiation beam within the eye. The beam source generates the electromagnetic radiation beam. The free-floating mechanism supports the scanning assembly and accommodates movement of the eye and provides a variable optical path for the electronic radiation beam and a portion of the electronic radiation beam reflected from the focal point location. The variable optical path is disposed between the beam source and the scanner and has an optical path length that varies to accommodate movement of the eye. The detection assembly generates a signal indicative of intensity of a portion of the electromagnetic radiation beam reflected from the focal point location.

Abstract: A method of treating a lens of a patient's eye includes generating a light beam, deflecting the light beam using a scanner to form a treatment pattern of the light beam, delivering the treatment pattern to the lens of a patient's eye to create a plurality of cuts in the lens in the form of the treatment pattern to break the lens up into a plurality of pieces, and removing the lens pieces from the patient's eye. The lens pieces can then be mechanically removed. The light beam can be used to create larger segmenting cuts into the lens, as well as smaller softening cuts that soften the lens for easier removal.

Abstract: A laser surgery system includes: a gantry configured to be attached to a structural frame; a docking receptacle configured to be removably attached to an eye docking assembly which is attached to an eye; an adjustable table attached to the gantry; a lens assembly attached to the adjustable table, wherein the adjustable table is configured to move the lens assembly relative to the eye; one or more connectors configured to attach the docking receptacle to the gantry, at least one of the connectors being configured to dynamically adjust the distance between a surface of the gantry and a surface of the docking receptacle; and a controller configured to maintain a target distance between the lens assembly and a reference area of the eye docking assembly.

Abstract: Apparatus and methods are provided for interfacing a surgical laser with an eye using a patient interface device that minimizes aberrations through a combination of a contact lens surface positioning and a liquid medium between an anterior surface of the eye and the contact lens surface.