Ophthalmologic laser device and method for preventing and treating aftercataract

An ophthalmologic laser device comprising:

• a pulsed laser configured to produce radiation focused along at treatment beam path;
• a variably adjustable beam deflector unit and a focusing lens system disposed in the treatment beam path, the deflector unit being configured to focus the radiation in different target volumes;
• measuring equipment configured to determine a shape and position of optical interfaces along a detection beam path;
• and
• a control unit for controlling the laser and the deflector unit, the control unit being configured to implement the following steps:
• determine a shape and position of at least one interface of a membrane of a capsular bag of an eye located in a treatment area using the measuring equipment,
• determine coordinates of a target volume such that, on irradiation of the target volume with a laser pulse of predetermined pulse energy, a pressure wave runs from the target volume at least up to the anterior or posterior membrane without tearing the respective membrane, and
• adjust the deflector unit to the determined target volume so as to irradiate the target volume with at least one laser pulse of the predetermined pulse energy using the laser.

An ophthalmologic laser device comprising:

• an ultra-short pulse laser configured to produce radiation focused along a treatment beam path;
• a variably adjustable beam deflector unit and a focusing lens system disposed in the treatment beam path, the deflector unit being configured to focus the radiation in different target volumes;
• measuring equipment configured to determine a shape and position of optical interfaces along a detection beam path;
• and
• a control unit for controlling the laser and the deflector unit, the control unit being configured to implement the following steps:
• determine a shape and position of at least one interface of an anterior membrane of a capsular bag of an eye located in a treatment area using the measuring equipment,
• determine coordinates of several target volumes such that each target volume lies at least partially in the anterior membrane and, on irradiation of the target volume with a laser pulse of predetermined pulse energy, a border of a region of the anterior membrane is perforated photodisruptively, the region lying away from a visual axis penetration zone of the anterior membrane, and
• adjust the deflector unit, respectively, to each determined target volume so as to irradiate the respective target volume with at least one laser pulse of the predetermined pulse energy using the laser.

An ophthalmologic laser device comprising:

• an ultra-short pulse laser configured to produce radiation focused along at treatment beam path;
• a variably adjustable beam deflector unit and a focusing lens system disposed in the treatment beam path, the deflector unit being configured to focus the radiation in different target volumes;
• measuring equipment configured to determine a shape and position of optical interfaces along a detection beam path;
• and
• a control unit for controlling the laser and the deflector unit, the control unit being configured to implement the following steps:
• determine a shape and position of at least one interface of a posterior membrane of a capsular bag of an eye located in a treatment area using the measuring equipment,
• determine coordinates of several target volumes such that each target volume lies at least partially in the posterior membrane and, on irradiation of the target volume with a laser pulse of predetermined pulse energy, a border of a region of the posterior membrane is perforated photodisruptively, the region border lying around a visual axis penetration zone of the posterior membrane, and
• adjust the deflector unit, respectively, to each determined target volume so as to irradiate the target volume with at least one laser pulse of the predetermined pulse energy using the laser.