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Corneal topography measurement and alignment of corneal surgical procedures

A technology of cornea and topography, applied in laser surgery, ophthalmic surgery, eye testing equipment, etc., can solve problems such as limiting the accuracy of corneal measurement and alignment, less than ideal combination, and reducing corneal accuracy

Active Publication Date: 2016-04-20
眼力健发展有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting force can distort the shape of the cornea and reduce the accuracy of corneal measurements in at least some cases
Deformation of the cornea associated with placement of the patient interface can limit the accuracy of corneal measurements and alignment for corneal surgical procedures
Also, images obtained with prior laser systems configured to be coupled to the eye with a patient interface may in at least some cases be at least partially distorted, which may distort images from the prior laser surgery system from images such as corneal topography and tomography. Combinations of prior eye measurement systems such as imaging systems are less than ideal in at least some cases

Method used

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  • Corneal topography measurement and alignment of corneal surgical procedures
  • Corneal topography measurement and alignment of corneal surgical procedures
  • Corneal topography measurement and alignment of corneal surgical procedures

Examples

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Embodiment Construction

[0086] Methods and systems related to laser eye surgery are disclosed. In many embodiments, lasers are used to make precise incisions in the cornea, lens capsule, and / or lens nucleus. While specific reference is made to tissues for laser eye surgery, embodiments as described herein may be used in one or more of numerous ways in many surgical procedures and devices, such as orthopedic, robotic, and microscopic Corneal lamellar knife.

[0087] Embodiments as described herein are particularly well suited for treating tissue, such as in the case of surgical treatment of tissue. In many embodiments, the tissue includes optically transmissive tissue, such as tissue of the eye. Embodiments as described herein can be combined in many ways with one or more of the many known refractive surgery procedures such as cataract surgery, corneal incisions, including for example laser assisted in situ keratomileusis (hereinafter "LASIK"), All Laser LASIK, Femto LASIK, Orthokeratology, Astigma...

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Abstract

Methods and apparatus are configures to measure an eye without contacting the eye with a patient interface, and these measurements are used to determine alignment and placement of the incisions when the patient interface contacts the eye. The pre-contact locations of one or more structures of the eye can be used to determine corresponding post-contact locations of the one or more optical structures of the eye when the patient interface has contacted the eye, such that the laser incisions are placed at locations that promote normal vision of the eye. The incisions are positioned in relation to the pre-contact optical structures of the eye, such as an astigmatic treatment axis, nodal points of the eye, and visual axis of the eye.

Description

[0001] cross reference [0002] This application claims priority to U.S. Provisional Application No. 61 / 813,613, filed April 18, 2013, and U.S. Provisional Application No. 61 / 873,071, filed September 3, 2013, entitled "Cornealtopographymeasurementandalignmentofcornealsurgicalprocedures"; Purpose incorporated herein by reference. Full Paris Convention priority is therefore expressly reserved. The subject matter of the present disclosure is related to the following patent applications: U.S. Application Serial No. 12 / 048,182 (Attorney Docket No. 43406-707 / 201), filed March 3, 2008, and entitled "METHODANDAPPARATUSFORCREATINGINCISIONSTOIMPROVEINTRAOCULARLENSPLACEMENT"; U.S. Application Serial No. 12 / 048,186 (Attorney Docket 43406-713 / 201) for "METHODANDAPPARATUSFORCREATINGOCULARSURGICALANANDRELAXINGINCISIONS"; 728 / 101); U.S. Application Serial No. 61 / 813,613, filed April 18, 2013, entitled "CORNEALTOPOGRAPHYMEASUREMENTANDALIGNMENTOFCORNEALSURGICALPROCEDURES" (Attorney Docket No. 4...

Claims

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Application Information

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IPC IPC(8): A61F9/009A61B3/107
CPCA61B3/107A61F9/00827A61F9/00829A61F2009/00846A61F2009/00853A61F2009/0087A61F2009/00872A61F2009/0088A61F2009/00882A61F2009/00887A61F2009/00889A61F9/00825A61B3/10A61B5/0073
Inventor D.D.斯科特J.冈萨雷斯D.德维N.贝尔克G.许勒
Owner 眼力健发展有限责任公司
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