Method to guide a cataract procedure by corneal imaging

A cataract, cornea technology, applied in the field of cataract procedure guided by corneal imaging

Inactive Publication Date: 2013-04-03
ALCON LENSX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the surgical target for these procedures can be specific to the cornea, lens, or other specific ocular tissue, such interventions typically have additional adverse effects on optical imaging within the eye

Method used

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  • Method to guide a cataract procedure by corneal imaging
  • Method to guide a cataract procedure by corneal imaging
  • Method to guide a cataract procedure by corneal imaging

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Embodiment Construction

[0045] figure 1 Eye 1 is exemplified. The optical path through which incident light travels includes the cornea 110, the anterior chamber, the pupil 120 defined by the iris 130, the lens 100, the posterior chamber, and the vitreous. These optical elements direct light to the retina 140 .

[0046] Figure 2A An embodiment 200 of an eye surgery procedure is illustrated. At step 220, the eye is prepared for laser assisted surgery. At step 240, laser pulses are used to create a laser mark within the eye region, and at step 260, a surgical procedure is performed to improve the optical properties of the eye within the selected surgical region associated with the laser mark.

[0047] Figure 2B An embodiment 200' of an eye surgery procedure is illustrated. In step 220', the eye is prepared for laser assisted surgery by determining the optical properties of the eye. In step 240' laser pulses are used to create laser marks in the eye region in relation to the determine...

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Abstract

A method of performing a cataract procedure may include the steps of: imaging one or more corneal marks created by a corneal procedure, determining corneal location information regarding a location of a treatment region of the corneal procedure based on the imaged corneal marks, and placing laser pulses for a cataract surgery using the corneal location information. A corresponding ophthalmic laser system may include an imaging system to image a corneal region of an eye, an image analyzer to facilitate a determination of corneal location information based on one or more image provided by the imaging system, and a surgical laser system to place laser pulses into a lens of the eye using the corneal location information. The imaging system may include an ophthalmic coherence tomographic (OCT) system.

Description

technical field [0001] This patent document relates to devices and methods for laser eye surgery, and more particularly to methods for guiding cataract procedures by corneal imaging. Background technique [0002] Many different types of eye surgery have the purpose of correcting refractive error to improve near vision, distance vision, or both. While the surgical target for these procedures may be specific to the cornea, lens, or other specific ocular tissue, such interventions typically have additional adverse effects on optical imaging within the eye. Therefore, increasing control over major surgical interventions while reducing unintentional side effects of that same surgical procedure is a factor motivating the development of the field of ophthalmic surgery. Contents of the invention [0003] Briefly, a method of performing a cataract procedure may include the steps of: imaging one or more corneal markers created by the corneal procedure; and determining corneal posit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/008G02F1/29A61B3/10A61N5/067
CPCA61F2009/00882A61F2009/00851A61F2009/00887A61F2009/00889A61F9/00836A61F2009/0087A61F2009/00855A61F9/00825A61B2019/5437A61F2009/0088A61F9/00827A61F9/008A61F2009/00872A61B2090/3937G02F1/29A61B3/10
Inventor R·M·克兹
Owner ALCON LENSX
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