System and method for making incisions in eye tissue at different depths. The system and method focuses light, possibly in a pattern, at various focal points which are at various depths within the eye tissue. A segmented lens can be used to create multiple focal points simultaneously. Optimal incisions can be achieved by sequentially or simultaneously focusing lights at different depths, creating an expanded column of plasma, and creating a beam with an elongated waist.

Method and apparatus for patterned plasma-mediated laser trephination of the lens capsule and three dimensional phaco-segmentation

A hand-held self-contained nerve-stimulation device and method using light to provide a source of precise stimulation on one or more nerve fibers. In some embodiments, this simulation is provided through a device and method wherein a laser- or LED-light source is mounted to the handpiece. Light is passed from the light source through optical tip to simulate nerves. In some embodiments, the device is constructed from non-magnetic material such as glass, plastic or ceramics. In some embodiments, the light emanating from the optical tip can be controlled manually or automatically. In some embodiments, the handpiece contains a self-contained power source, such as batteries. In some embodiments, the handpiece is at least in part, activated by remote control in order to prevent moving the handpiece during activation. Some embodiments include a unit operable to sense a response of nerve stimulation and to suppress a laser-ablation surgery operation.

Miniature apparatus and method for optical stimulation of nerves and other animal tissue

A method for precise working of material, particularly organic tissue, comprises the step of providing laser pulses with a pulse length between 50 fs and 1 ps and with a pulse frequency from 50 kHz to 1 MHz and with a wavelength between 600 and 2000 nm for acting on the material to be worked. Apparatus, in accordance with the invention, for precise working of material, particularly organic tissue comprising a pulsed laser, wherein the laser has a pulse length between 50 fs and 1 ps and with a pulse frequency of from 50 kHz to 1 MHz is also described.

Method and apparatus for precision working of material

Apparatus and method to generate a stream of pulses having a pulse repetition rate of at least about 50000 pulses per second and a per-pulse length of less than one picosecond, and to scan and focus the stream to an output light pattern suitable to sculpt tissue for a surgical procedure (e.g., ophthalmologic) using at least a high number of pulses to complete the operation in a matter of a few seconds, e.g., 100000 pulses in less than ten seconds. Some embodiments create a preconditioning negative dispersion that compensates for positive dispersion in the scanning system, in some embodiments; a lenticule is cut using the laser and scanning system and is mechanically removed through a side slit formed through the cornea surface.

Apparatus and method for ophthalmologic surgical procedures using a femtosecond fiber laser

A system and method for increasing the amplitude of accommodation and/or changing the refractive power of lens material of a natural crystalline lens is provided. Generally, there is provided methods and systems for delivering a laser beam to a lens of an eye in a plurality of sectional patterns results in the shaped structural weakening of the lens. There is also provided a method and system for determining adjustments to refractive errors in the lens of an eye relating to the treatment of presbyopia. The change to refractive error can be a predicted error or an actual error that has been determined.

System and method for providing the shaped structural weakening of the human lens with a laser

The invention is directed to a laser slit lamp comprising a slit lamp base, a slit lamp head and a slit lamp microscope. The laser slit lamp is connected with an applicator. It comprises means for uniting radiation from at least two radiation sources collinearly and for directing the radiation of a treatment beam or working beam onto the location to be treated in or on the eye of a patient, means for generating a target beam or marking beam for targeting and observing the location to be treated in or on the eye, and adjusting means in the applicator for changing the intensity and diameter of the working beam spot used for treatment. The radiation sources are laser radiation sources arranged in the slit lamp head, in the slit lamp base or in the slit lamp microscope for generating the working beam, illumination beam and/or target beam. Devices for control, regulation and monitoring are likewise arranged in the interior of the slit lamp.

Laser slit lamp with laser radiation source

According to this high-precision material processing method, in particular for organic tissues, laser pulses with a pulse length from 50 fs to 1 ps, a pulse frequency from 50 kHz to 1 MHz and a wavelength from 600 to 2000 nm are applied to the material to be processed.

High-precision material processing method and device

Disclosed is a device for determining a movement of a human eye (1) located in front of said device. The inventive device comprises an illumination apparatus by means of which optical radiation can be produced and can be emitted as an illumination beam (13, 13', 13') in order to illuminate at least one area on the cornea (7) of the eye (1), a distance determining apparatus (17) by means of which the illumination beam (13, 13', 13') reflected by the cornea (7) as a detection beam (14, 14', 14') can be received in a time-resolved manner and a distance signal corresponding to a distance of the cornea (7) from a reference plane (12, 12', 12') that is defined relative to the distance determining apparatus (17) can be generated by using the received optical radiation of the detection beam (14, 14', 14'), and an evaluation unit (11) by means of which a position signal or movement signal corresponding to a position or movement of the eye (1) can be generated by using the distance signal.

Mario Gerlach

Papers

Method and apparatus for precision working of material

Apparatus and method for ophthalmologic surgical procedures using a femtosecond fiber laser

Laser slit lamp with laser radiation source

High-precision material processing method and device

Method and device for determining movement of a human eye