A treatment device for the surgical correction of defective vision in an eye. The device includes a laser apparatus controlled by a controller. The controller determines a desired correction of defective vision from measurement data of the eye to produce control data for the laser, and to control the laser to emit radiation according to the control data, such that a lenticule-shaped volume is isolated in the cornea. The controller computes a lenticule-shaped intended volume, the removal of which from the cornea leads to an actual correction of defective vision in an optical zone in the eye which differs from the desired correction more at the edge of the optical zone than at the center of the optical zone. The thickness of the lenticule-shaped intended volume is less than the thickness of a lenticule-shaped comparison volume, the removal of which would bring about the desired correction of defective vision.

The disclosure provides a system that may: determine first multiple focal point distances associated with respective multiple positions of a plane orthogonal to a laser beam; determine second multiple focal point distances associated with the respective multiple positions via for each position of the multiple positions: determine multiple intensity values associated with respective multiple interim focal point distances, each interim focal point distance greater than each focal point distance of the first multiple focal point distances associated with the position; determine an interim focal point distance respectively associated with a maximum intensity value; and determine a focal point distance as the interim focal point distance; and determine a depth of at least one incision in an eye based at least on differences between each of the second multiple focal point distances and each respective one of the first multiple focal point distances.

The present disclosure provides a laser treatment system that includes an optical coherence tomography (OCT) imaging system that generates a plurality of profile depth scans and executes instructions on a processor to detect a position, a volume, or a combination thereof, of a media opacity in an eye based on the plurality of profile depth scans. The system further includes a three-dimensional (3D) eye tracker that executes instructions on the processor to track the position, the volume, or a combination thereof, of the media opacity in the eye based on the plurality of profile depth scans. The system also includes a laser system that includes a treatment laser and that precisely targets a plurality of ultra-short laser pulses generated by the treatment laser at the media opacity in the eye to at least partially remove the media opacity.

An ophthalmic treatment system and method for performing therapy on target tissue in a patient's eye. A delivery system delivers treatment light to the patient's eye and a camera captures a live image of the patient's eye. Control electronics control the delivery system, register a pre-treatment image of the patient's eye to the camera's live image (where the pre-treatment image includes a treatment template that identifies target tissue within the patient's eye), and verify whether or not the delivery system is aligned to the target tissue defined by the treatment template. The control electronics control the delivery system to project the treatment light onto the patient's eye in response to both an activation of a trigger device and the verification that the delivery system is aligned to the target tissue, as well as adjust delivery system alignment to track eye movement.

A planning device for generating control data for a treatment apparatus which by means of a laser device produces at least one incision surface in the cornea, and to a treatment apparatus having such a planning device. The invention further relates to a method for generating control data for a treatment apparatus which by using a laser device produces at least one incision surface in the cornea, and to a corresponding ophthalmic surgery method. The planning device is thereby provided with calculation means for defining the corneal incision surfaces, wherein the calculation means determine the corneal incision surfaces on the basis of data of a LIRIC structure and/or a refractive correction, and generate for the corneal incision surfaces a control data set for controlling the laser device, wherein the calculation means determine the corneal incision surfaces in such a manner that the LIRIC structure is enclosed by the incision surfaces.

This disclosure relates to methods for treatment or prevention of retinal vascular disease by photocoagulation. More specifically, this disclosure relates to an improved technique for the placement of retinal burns so as to prevent the development of hypoxia and progression of ischemia in retinal tissue, including the macula. The methods can also be employed to prevent potential ischemic tissue damage in diabetic, pre-diabetic or other patients with ischemic retinal vascular disease, or those at risk of ischemic retinal vascular disease.

The present disclosure provides a system and method for cutting a flap in laser ophthalmic surgery using polarization sensitive optical coherence tomography (PS-OCT). The system includes a PS-OCT system, a femtosecond laser, control device, and processor. The PS-OCT system includes a PS-OCT source, a polarization component, a reference reflector, a beam splitter, a wave plate, and a detector. The processor receives data relating to an interference pattern of a reflected PS-OCT beam, received at the detector, determines a relative fiber orientation of the sample, determines whether a photodisruption pattern generated by the femtosecond laser to cut the flap should be adjusted horizontally or vertically, based on the relative fiber orientation, and may generate a control signal to adjust the photodisruption pattern generated by the femtosecond laser. The disclosure further provides a method for cutting a flap on an eye using PS-OCT.

A laser surgical method for performing a corneal incision while maintaining iris exposure below a predetermined exposure limit includes: determining an initial iris exposure based on an initial treatment scan, determining whether the initial iris exposure is less than the predetermined exposure limit; generating a revised treatment scan comprising one or more treatment scan modifying elements when the initial iris exposure is greater than the predetermined exposure limit, and scanning the focal zone of a pulsed laser beam according to the revised treatment scan, thereby performing the corneal incision, wherein the one or more treatment scan modifying elements causes the iris exposure to be smaller than the predetermined exposure limit.

The invention relates to a planning device for generating control data for a treatment apparatus, which by means of a laser device generates at least one cut surface in the cornea, and to a treatment apparatus having such a planning device. The invention further relates to a method for generating control data for a treatment apparatus, which by means of a laser device generates at least one cut surface in the cornea, and to a corresponding method for eye surgery. The planning device is thereby provided with calculating means for defining the corneal incision surfaces, wherein the calculation means determines the corneal incisions such that after inserting an implant into the cornea, existing refractive errors are counteracted.

An ophthalmic treatment system and method for performing therapy on target tissue in a patient's eye. A delivery system delivers treatment light to the patient's eye and a camera captures a live image of the patient's eye. Control electronics control the delivery system, register a pre-treatment image of the patient's eye to the camera's live image (where the pre-treatment image includes a treatment template that identifies target tissue within the patient's eye), and verify whether or not the delivery system is aligned to the target tissue defined by the treatment template. The control electronics control the delivery system to project the treatment light onto the patient's eye in response to both an activation of a trigger device and the verification that the delivery system is aligned to the target tissue, as well as adjust delivery system alignment to track eye movement.