In order to take advantage of the real time nature of intra-operative refraction or wavefront aberrometry, and visually make the history of the measurements apparent to a surgeon, a histogram of frequency vs IOL results calculated from an IOL formula is computed and IOL suggestions being accumulated are displayed in a histogram. One embodiment is a means to present to a surgeon a histogram of intra-operative refractions. Another embodiment is to automatically and intra-operatively detect the aphakic phase of a cataract surgery to display a histogram of a recommended IOL power.

A treatment method and apparatus for surgical correction of defective-eyesight in an eye of a patient, wherein a laser device is controlled by a control device, said laser device separating corneal tissue by irradiation of laser radiation to isolate a volume located within a cornea, wherein the control device controls the laser device to focus the laser radiation, by providing target points located within the cornea, into the cornea, wherein the control device, when providing the target points, allows for focus position errors which lead to a deviation between the predetermined position and the actual position of the target points when focusing the laser radiation, by pre-offsets depending on the positions of the respective target points to compensate for said focus position errors.

A method of modifying a refractive profile of an eye having an intraocular device implanted therein, wherein the method includes determining a corrected refractive profile for the eye based on an initial refractive profile, identifying one or more locations within the intraocular device based on the corrected refractive profile, and directing a pulsed laser beam at the locations to produce the corrected refractive profile. A system of modifying an intraocular device located within an eye, wherein the system includes a laser assembly and a controller coupled thereto. The laser assembly outputs a pulsed laser beam having a pulse width between 300 picoseconds and 10 femtoseconds. The controller directs the laser assembly to output the pulsed laser beam into the intraocular device. One or more slip zones are formed within the intraocular device in response thereto, and the slip zones are configured to modify a refractive profile of the intraocular device.

A system for treating a media opacity in a vitreous media of an eye includes a visualization module adapted to provide visualization data of a portion of the eye via one or more viewing beams. The system includes a laser module adapted to selectively generate a treatment beam directed towards the media opacity in order to disrupt the media opacity. The laser module and the visualization module have a shared aperture for guiding the treatment beam and the one or more viewing beams towards the eye, the shared aperture being centered about a central axis. A controller is configured to acquire one or more defining parameters of the media opacity and determine when the media opacity is with a predefined target zone of a real-time viewing window. The media opacity is treated with the treatment beam when the media opacity is within the predefined target zone.

A surgical laser system includes a laser engine, configured to generate a laser beam of laser pulses; a proximal optics and a distal optics, together configured to direct the laser beam to a target region, and to scan the laser beam in the target region through a scanning-point sequence; and an aberration sensor, configured to sense aberration by an aberration layer; a compensation controller, coupled to the aberration sensor, configured to generate compensation-point-dependent phase compensation control signals based on the sensed aberration; and a spatial phase compensator, positioned between the proximal optics and the distal optics, at a conjugate aberration surface, conjugate to the aberration layer, and coupled to the compensation controller, configured to receive the compensation-point-dependent phase compensation control signals, and to alter a phase of the laser beam in a compensation-point-dependent manner to compensate the sensed aberration.

Systems and methods related to corneal ablation for treatment of one or more high-order optical aberrations are provided. A method includes providing a defect-correcting prescription, determining an ablation profile to impose the prescription on the cornea, and determining a sequence of laser-energy ablations to impose the ablation profile on the cornea. The prescription may include a high-order optical correction. The ablation profile includes a first-segment profile and a second-segment profile. The second-segment profile corresponds to at least one high-order optical correction. The ablation sequence includes applying ablations corresponding to the first-segment profile prior to applying ablations corresponding to the second-segment profile.

The disclosure provides a method for correcting higher-order aberrations including providing a laser radiation. The method also includes controlling a location of a beam focal point of the laser radiation by a system of scanners and guiding the beam focal point in such a way that the location of the beam focal point is in a cornea of an eye. The method further includes introducing the laser radiation into the cornea of the eye. The method includes cutting a lenslet, wherein a thickness of the lenslet t(X/Y) satisfies a following equation: t(X/Y)=t.sub.0+Δt(X,Y)/(n−1), where Δt(X,Y) represents a higher-order wavefront elevation and to represents the thickness of the lenslet having a spherical refractive power of D.

A method is disclosed for providing control data for an eye surgical laser of a treatment apparatus for the removal of a tissue. The method includes using a control device for determining a wavefront of a cornea and Zernike polynomials from the wavefront and calculating a respective tissue geometry for each Zernike polynomial. A combination of Zernike polynomials describes a tissue removal geometry. The control device ascertains a subgroup of the Zernike polynomials by an optimization calculation, which uses a preset condition to select Zernike polynomials. The condition is preset by a maximized target corneal geometry and a target imaging correction to be achieved. The target corneal geometry is a difference between a corneal geometry and the tissue removal geometry. An optimized tissue removal geometry is found using the subgroup and control data for controlling the eye surgical laser, which uses the optimized tissue removal geometry for separating the tissue.

The invention relates to a method for providing control data for an eye surgical laser (12) of a treatment apparatus (10) for the removal of a tissue (14). A control device (18) ascertains (S10, S12) a wavefront of a cornea and Zernike polynomials from the ascertained wavefront and calculates (S14) a respective tissue geometry for each Zernike polynomial, wherein a combination of a selection of the Zernike polynomials describes a tissue removal geometry. Further, the control device (18) ascertains (S16) a subgroup of the Zernike polynomials by an optimization calculation, by which one or more Zernike polynomials are selected for the subgroup if they satisfy a preset optimization condition, wherein the optimization condition is preset by a maximized target corneal geometry and an imaging correction to be achieved, wherein the target corneal geometry is ascertained from a difference of a corneal geometry and the tissue removal geometry. An optimized tissue removal geometry is determined (S18) from the ascertained subgroup and control data for controlling the eye surgical laser (12), which uses the optimized tissue removal geometry for separating the tissue (14), is provided (S20).

Systems and methods for improving vision of a subject implanted with an intraocular lens (IOL). In some embodiments, a method includes applying a plurality of laser pulses to the IOL. The laser pulses can be configured to produce, by refractive index writing on the IOL, a predetermined change in phase profile of the IOL to increase spectacle independence.