After-treatment of refraction correction by ophthalmic surgery
AssigneeCarl Zeiss Meditec AG
InventorsMichael Bergt, Carsten Lang
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Abstract
A planning system for generating control data, a treatment device for ophthalmic surgery to correct refraction, and a method for generating control data for such a treatment device, by which method it is easily possible to continue an interrupted treatment or correct a previous treatment. To this end, the planning system has calculating means for defining a corneal incision surface, wherein the calculating means determine the new corneal incision surface such that the existing corneal incision surface is incised by at least a part of the new corneal incision surface at an angle of between 60° and 120°.
Claims19
A planning device for generating control data for a treatment apparatus for ophthalmic surgery, which cuts at least one incision surface in a cornea, using a laser device, wherein the planning device includes a calculation device for establishing a new cornea incision surface, wherein the calculation device establishes the new cornea incision surface based on data of a previously-introduced cornea incision surface and generates a control data set for controlling the laser device for the new cornea incision surface,
- wherein the calculation device determines the new cornea incision surface in such a manner that the previously-introduced cornea incision surface is intersected by at least a part of the new cornea incision surface at an angle between 60° and 120°.
A method for generating control data for a treatment apparatus for ophthalmic surgery which cuts at least one incision surface in the cornea using a laser device, the method comprising:
- making available cornea data that contain information about incisions that have already been introduced, establishing a new cornea incision surface, and generating a control data set for the new cornea incision surface for controlling the laser device, wherein the new cornea incision surface is determined in such a manner that an existing cornea incision surface is intersected by at least a part of the new cornea incision surface at an angle between 60° and 120°, preferably 80° to 100°.
A method for ophthalmic surgery, wherein at least one incision surface in a cornea is cut with a laser device (4), using a treatment apparatus, wherein the method comprises:
- making available cornea data that contain information about an existing incision surface that has already been produced, establishing a new cornea incision surface based on the cornea data and generating a control data set for the new cornea incision surface, transmitting the control data to the treatment apparatus, and producing the new cornea incision surfaces by controlling the laser device with the control data set, wherein the new cornea-incision surface is determined in such manner that the existing cornea incision surface is intersected by at least a part of the new cornea incision surface at an angle between 60° and 120°.
Dependencies are inferred from the claim text.