A method for providing control data for an eye surgical laser of a treatment apparatus for removing tissue is disclosed. The method includes utilizing a control device for determining a corneal geometry and an ocular wavefront of a human or animal eye from predetermined examination data. A corneal wavefront is then determined from the corneal geometry using a physical model, and an internal wavefront is calculated from a difference between the ocular wavefront and the corneal wavefront. A wavefront to be achieved is calculated from a difference of a preset target wavefront and the calculated internal wavefront. A target corneal geometry is determined from the wavefront to be achieved by the physical model, and a tissue geometry to be removed is calculated from a difference of the corneal geometry and the target corneal geometry, and control data for controlling the eye surgical laser is provided.

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.

Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical tissues is performed in combination with corneal lenticular surgery to achieve overall desired vision corrections.

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.

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.

A method for detecting structures within an optical element of an eye and processing the optical element as a function of the detected structures includes acquiring, by a detection device, geometric data of an eye, transferring, by the detection device, the geometric data of the eye to a controller, calculating, by the controller, target coordinates for a processing device including a laser, the processing device being connected to the controller, and applying a beam produced by the laser to the eye according to the target coordinates calculated by the controller so as to process the optical element.

A device for producing control data for a laser device for the surgical correction of defective vision. The device produces the control data such that the laser emits the laser radiation such that a volume in the cornea is isolated. The device calculates a radius of curvature R.sub.CV* to determine the control data, the cornea reduced by the volume having the radius of curvature R.sub.CV* and the radius of curvature being site-specific and satisfying the following equation: R.sub.CV*(r,φ)=1/((1/R.sub.CV(r,φ))+B.sub.COR(r,φ)/(n.sub.c-1))+F, wherein R.sub.CV(r,φ) is the local radius of curvature of the cornea before the volume is removed, n.sub.c is the refractive index of the material of the cornea, F is a coefficient, and B.sub.COR(r,φ) is the local change in refractive force required for the desired correction of defective vision in a plane lying in the vertex of the cornea, and at least two radii r1 and r2 satisfy the equation B.sub.COR(r=r1,φ)≠B.sub.COR(r=r2,φ).

Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical tissues is performed in combination with corneal lenticular surgery to achieve overall desired vision corrections.

Methods and devices are provided for wavefront treatments of an eye's astigmatism, coma, and presbyopia. Wavefront-engineered monofocal lenses, inducing spherical aberration into the eye's central pupil, provide vision correction beyond 20/20 acuity and improve quality of vision by eliminating image distortion caused by uncorrected astigmatism and coma in the eye. New presbyopia-correcting lenses, including Extended Depth of Focus (EDOF) bifocal, EDOF trifocal, and quasi-accommodating lenses, are disclosed for presbyopia corrections between +0.75 D to +3.25 D, and they are achieved by inducing a positive spherical aberration and a positive focus offset less than 3 Diopters in a central section plus a negative spherical aberration in an annular section within a central part of a monofocal lens. These wavefront lenses can be adapted for contact lenses, implantable contact lenses, Intraocular Lenses (IOLs), phakic IOLs, accommodating IOLs, corneal inlays, as well as eyepieces for Virtual Reality (VR) displays, game goggles, microscopes, telescopes.

The present invention relates to a method for recommending a vision correction surgery, and the method according to one aspect of the present invention comprises: obtaining an examination data of a subject; predicting whether the vision correction surgery is suitable for the subject from the examination data; when the vision correction surgery is suitable for the subject, predicting whether the vision correction surgery using a laser is available for the subject from the examination data; when the vision correction surgery using the laser is available for the subject, calculating corneal shape factor prediction values of the subject after a standard vision correction surgery and a custom vision correction surgery from the examination data; and when the vision correction surgery using the laser is available for the subject, suggesting a vision correction surgery corresponding to the subject from the examination data.