# US 2014/0155872 A1 · High-Order Optical Correction During Corneal Laser Surgery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0155872 A1 - Document ID: US20140155872A1 - Status: Published application - Kind: A1 - Application number: 13/915,776 - Filed: 2013-06-12 - Published: 2014-06-05 - Earliest claimed: 2008-04-22 - Assignees: AMO Development, LLC - Applicants: AMO Development, LLC - Inventors: Julian D. Stevens - Web page: https://patentgrep.com/patent/US20140155872A1 ## CPC - A61F 9/00806: {Correction of higher orders} - A61F 2009/00844: {Feedback systems} - A61F 2009/00848: {based on wavefront} - A61F 2009/00872: {Cornea} - A61F 2009/0088: {based on wavefront} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract Systems and methods related to corneal ablation for treatment of one or more high-order optical aberrations are provided. A method includes providing a defect-correcting prescription, determining an ablation profile to impose the prescription on the cornea, and determining a sequence of laser-energy ablations to impose the ablation profile on the cornea. The prescription comprises a high-order optical correction. The ablation profile includes a first-segment profile and a second-segment profile. The second-segment profile corresponds to at least one high-order optical correction. The ablation sequence includes applying ablations corresponding to the first-segment profile prior to applying ablations corresponding to the second-segment profile. ## Claims ### Claim 1 A method for sequencing an ablation of a cornea of an eye to impose a defect-correcting prescription on the eye, the method comprising: providing the defect-correcting prescription, the prescription comprising a high-order optical correction; determining an ablation profile to impose the prescription on the cornea, the ablation profile comprising a first-segment profile and a second-segment profile, the second-segment profile corresponding to at least one high-order optical correction; and determining a sequence of laser-energy ablations to impose the ablation profile on the cornea, wherein the sequence comprises applying ablations corresponding to the first-segment profile prior to applying ablations corresponding to the second-segment profile. ### Claim 2 (depends on 1) The method of claim 1, further comprising displaying the first-segment profile. ### Claim 3 (depends on 1) The method of claim 1, further comprising displaying the second-segment profile. ### Claim 4 (depends on 1) The method of claim 1, wherein determining the sequence comprises placing ablations corresponding to the second-segment profile at the end of the sequence. ### Claim 5 (depends on 1) The method of claim 1, further comprising displaying a predicted final cornea profile. ### Claim 6 (depends on 1) The method of claim 1, wherein the second-segment profile is characterized using Zernike polynomials. ### Claim 7 (depends on 1) The method of claim 1, further comprising: providing a wavefront elevation map of optical aberrations of the eye; and determining the defect-correcting prescription in response to the wavefront elevation map. ### Claim 8 (depends on 7) The method of claim 7, wherein determining the defect-correcting prescription comprises: determining a first plurality of wavefront Zernike coefficients corresponding to the wavefront map; and selecting a second plurality of wavefront Zernike coefficients corresponding to the defect-correcting prescription. ### Claim 9 A system for imposing a defect-correcting prescription on an eye having a cornea, the system comprising: a wavefront system configured to measure optical aberrations of the eye; a processor coupled with the wavefront system, the processor comprising a tangible medium comprising instructions that when executed cause the processor to: process the measured aberrations to generate the defect-correcting prescription for the eye, determine an ablation profile corresponding to the defect-correcting prescription, segment the ablation profile into at least a first-segment profile and a second-segment profile, the second-segment profile corresponding to ablations for imposing at least one high-order optical correction on the cornea, and determine a sequence of laser-energy ablations to impose the ablation profile on the cornea, wherein the sequence comprises applying ablations corresponding to the first-segment profile prior to applying ablations corresponding to the second-segment profile; and an eye-modifying assembly coupled with the processor, the eye-modifying assembly comprising an ablative laser for directing the determined sequence of laser energy toward the cornea so as to impose the ablation profile on the cornea. ### Claim 10 (depends on 9) The system of claim 9, wherein the determined sequence comprises applying ablations corresponding to the second segment at the end of the sequence. ### Claim 11 (depends on 9) The system of claim 9, further comprising a display coupled with the processor. ### Claim 12 (depends on 11) The system of claim 11, wherein the instructions further cause the processor to display the first-segment profile on the display. ### Claim 13 (depends on 11) The system of claim 11, wherein the instructions further cause the processor to display the second-segment profile on the display. ### Claim 14 (depends on 11) The system of claim 11, wherein the instructions further cause the processor to display a predicted final cornea profile on the display. ### Claim 15 (depends on 9) The system of claim 9, wherein the second-segment profile is characterized using Zernike polynomials. ### Claim 16 A system for imposing a defect-correcting prescription on an eye having a cornea, the system comprising: an aberrometer system configured to measure optical aberrations of the eye; a processor coupled with the aberrometer system, the processor comprising a tangible medium comprising instructions that when executed cause the processor to: process the measured aberrations to generate the defect-correcting prescription for the eye, determine a profile corresponding to the defect-correcting prescription, segment the profile into at least a first-segment profile and a second-segment profile, the second-segment profile corresponding to laser alterations for imposing at least one high-order optical correction on the cornea, and determine a sequence of laser-energy to impose the profile on the cornea, wherein the sequence comprises applying alterations corresponding to the first-segment profile prior to applying alterations corresponding to the second-segment profile; and an eye-modifying assembly coupled with the processor, the eye-modifying assembly comprising a laser for directing the determined sequence of laser energy toward the cornea so as to impose the profile on the cornea.