System and method for nomogram-based refractive laser surgery
AssigneeAlcon Inc.
InventorsPeter Riedel, Johannes Agethen
Life of this patent
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Abstract
A surgical system corrects a surgical parameter based on a nomogram specific for a refractive laser surgery system to provide a nomogram-based corrected surgical parameter; stores the surgical parameter and the nomogram-based corrected surgical parameter as data for a patient or for one or both eyes of the patient; and compares the surgical parameter and nomogram-based corrected surgical parameter to generate a graphical representation of the surgical parameter, a target outcome parameter associated with the surgical parameter, or both, and the nomogram-based corrected surgical parameter, to generate a warning based on a comparison of the nomogram-based corrected surgical parameter to the surgical parameter or an absolute value, or both.
Claims19
A refractive laser surgery system, the system comprising:
- a processor having access to memory media storing instructions or sets of instructions executable by the processor to:
- identify a surgical parameter;
- correct the surgical parameter based on a nomogram specific for the refractive laser surgery system to provide a nomogram-based corrected surgical parameter, the nomogram based on actual surgical parameters and actual outcome parameters;
- store the surgical parameter and the nomogram-based corrected surgical parameter in the memory media as data for a patient or for one or both eyes of the patient;
- store the nomogram in the memory;
- compare the surgical parameter and nomogram-based corrected surgical parameter to generate a graphical representation of the surgical parameter, a target outcome parameter associated with the surgical parameter, or both, and the nomogram-based corrected surgical parameter, to generate a warning based on a comparison of the nomogram-based corrected surgical parameter to the surgical parameter;
- and
- periodically update the nomogram based on subsequent actual surgical parameters and subsequent actual outcome parameters;
- and
- a laser configured to treat the one or both eyes of the patient in response to instructions from the processor.
A method for performing refractive laser surgery on a cornea of an eye of a patient using a refractive laser surgery system comprising a laser, a processor, and memory media accessible by the processor and storing instructions or sets of instructions executable by the processor, the method comprising:
- identifying, by the processor, a surgical parameter;
- correcting, by the processor, the surgical parameter based on a nomogram specific for the refractive laser surgery system to provide a nomogram-based corrected surgical parameter, the nomogram based on actual surgical parameters and actual outcome parameters;
- storing, by the processor, the surgical parameter and the nomogram-based corrected surgical parameter in the memory media as data for the patient or for one or both eyes of the patient;
- storing, by the processor, the nomogram in the memory media;
- periodically updating, by the processor, the nomogram based on subsequent actual surgical parameters and subsequent actual outcome parameters;
- comparing, by the processor, the surgical parameter and the nomogram-based corrected surgical parameter to generate a graphical representation of the surgical parameter, a target outcome parameter associated with the surgical parameter, or both, and the nomogram-based corrected surgical parameter, to generate a warning based on a comparison of the nomogram-based corrected surgical parameter to the surgical parameter;
- calculating, by the processor, an ablation profile or photodisruption profile for the cornea of the eye of the patient using the nomogram-based corrected surgical parameter;
- and
- sending, by the processor, instructions to the refractive laser surgery system to perform the refractive laser surgery on the cornea of the eye of the patient.
Dependencies are inferred from the claim text.