OPHTHALMOLOGICAL LASER SYSTEM AND OPERATING METHOD
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Accused Products
Abstract
An ophthalmological laser system and operating method wherein laser-supported operative interventions can be achieved with higher accuracy. The cornea is irradiated with an ophthalmological laser and a detection light confocally recorded, the cornea being scanned in three-dimensions by irradiation with an illuminating laser power using a scanner unit along several directions at several points. Using the simultaneously recorded detection light the position and/or shape of a posterior boundary surface of the cornea is determined. A lamella parallel to the posterior boundary surface can then be cut.
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Citations
58 Claims
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1-24. -24. (canceled)
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25. An ophthalmological laser system, comprising:
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a laser, the emitted radiation of which is focusable in an examination region via an illumination beam path; a scanner unit; a detection beam path including a confocal aperture diaphragm and a detector that maps detection light from the focused area of the examination region; a control unit operable to cause the following to be executed; irradiating the cornea by the laser and mapping of the detection light by the detector, wherein the control unit causes the scanner unit to scan the cornea three-dimensionally, irradiating said cornea at an illumination laser power at several points and simultaneously mapping the detection light; and determining at least one of a position and a form of a posterior boundary layer of the cornea by analysis of the detection light. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. An operating method for an ophthalmological laser system, the laser of which is switchable between an illumination laser power and a therapy laser power, and the laser light of which is focusable variably in three-dimensions in a cornea, comprising:
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irradiating the cornea with the laser at an illumination laser power; mapping detection light by use a confocal detector; scanning the laser light at cornea three-dimensionally by use of a scanner unit; irradiating said cornea at several points; mapping detection light; determining at least one of the position and form of a posterior boundary layer of the cornea by analysis of the detection light; determining irradiation control data for a laser surgical treatment by taken into account the determined position and/or form of the posterior boundary layer; and irradiating the cornea by the laser at the surgical therapy laser power in accordance with the determined irradiation control data. - View Dependent Claims (40, 41, 42, 43, 44)
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45. Method for the execution of a keratoplasty, comprising:
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determining at least one of a position and form of the posterior boundary layer of a cornea through confocal detection; and cutting a lamella parallel to the posterior boundary layer based on the determined position and/or form of the posterior boundary layer.
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46. An ophthalmological laser system, comprising:
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a laser, the radiation of which is focusable in an examination region via an illumination beam path; a scanner unit; an immobilization device for an eye positioned in the examination region; a light source for illumination of an eye; a detector that maps mapping detection light from the examination region; and a control unit operable to cause the following steps to be executed; determining of irradiation control data for a laser surgical treatment;
activating of the immobilization device;irradiating a cornea by the laser at a surgical therapy laser power in accordance with the determined irradiation control data; illuminating the cornea by the light source; identifying an area of the cornea, which contains opaque bubbles, by analysis of the detection light mapped by the detector; repeating irradiating of at least the identified area of the cornea by the laser at the surgical therapy laser power; and deactivation of the immobilization device; wherein the immobilization device remains permanently activated between a first irradiation and a last repeated irradiation. - View Dependent Claims (47)
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48. An operating method for an ophthalmological laser system, the laser of which is switchable between an illumination laser power and a therapy laser power, and the laser light of which is focusable variably three-dimensionally in a cornea, comprising:
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determining irradiation control data for a laser surgical treatment; activating an immobilization device; irradiating the cornea by the laser at a surgical therapy laser power in accordance with the determined irradiation control data; identifying an area of the cornea which contains opaque bubbles, by analysis of images of the cornea; repeating irradiating at least the identified area of the cornea by the laser at the surgical therapy laser power; and deactivating the immobilization device, wherein the immobilization device remains permanently activated between the first irradiation and the last repeated irradiation. - View Dependent Claims (49)
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50. A method of execution of a keratoplasty on a cornea of an eye, comprising:
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immobilizing the eye by an immobilization device; irradiating the cornea by a laser at a surgical therapy laser power; releasing the immobilization device at the end of the irradiation; identifying, after the irradiation of the cornea, an area of the cornea which contains opaque bubbles; and prior to the releasing of the immobilization, again irradiating at least the identified area of the cornea by the laser at the surgical therapy laser power. - View Dependent Claims (51, 52)
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53. A computer readable medium including instructions to cause a computer to execute a method, comprising:
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irradiating a cornea with a laser at an illumination laser power; mapping detection light by use a confocal detector; scanning the laser light at cornea three-dimensionally by use of a scanner unit; irradiating said cornea at several points; mapping detection light; determining at least one of the position and form of a posterior boundary layer of the cornea by analysis of the detection light; determining irradiation control data for a laser surgical treatment by taken into account at least one of the determined position and form of the posterior boundary layer; and irradiating the cornea by the laser at the surgical therapy laser power in accordance with the determined irradiation control data. - View Dependent Claims (54)
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55. A computer readable medium including instructions to cause a computer to execute a method of execution of a keratoplasty on a cornea of an eye, comprising:
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determining at least one of a position and form of the posterior boundary layer of a cornea through confocal detection; and cutting a lamella parallel to the posterior boundary layer based on the determined position and/or form of the posterior boundary layer.
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56. A computer readable medium including instructions to cause a computer to execute a method, comprising:
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determining irradiation control data for a laser surgical treatment; activating an immobilization device; irradiating the cornea by a laser at a surgical therapy laser power in accordance with the determined irradiation control data; identifying an area of the cornea which contains opaque bubbles, by analysis of images of the cornea; repeating irradiating at least the identified area of the cornea by the laser at the surgical therapy laser power; and deactivating the immobilization device, wherein the immobilization device remains permanently activated between the first irradiation and the last repeated irradiation.
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57. A computer readable medium including instructions to cause a computer to execute a method, comprising:
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immobilizing the eye by an immobilization device; irradiating the cornea by a laser at a surgical therapy laser power; releasing the immobilization device at the end of the irradiation; identifying, after the irradiation of the cornea, an area of the cornea which contains opaque bubbles; and prior to the releasing of the immobilization, again irradiating at least the identified area of the cornea by the laser at the surgical therapy laser power.
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58. A computer readable medium including instructions to cause a computer to execute a method of execution of a keratoplasty on a cornea of an eye, comprising:
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immobilizing the eye by an immobilization device; irradiating the cornea by a laser at a surgical therapy laser power; releasing the immobilization device at the end of the irradiation; identifying, after the irradiation of the cornea, an area of the cornea which contains opaque bubbles; and prior to the releasing of the immobilization, again irradiating at least the identified area of the cornea by the laser at the surgical therapy laser power.
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Specification