Customized cutting for correcting ametropia

A technology for refractive errors, eyesight, applied in the field of computer programs

Pending Publication Date: 2022-06-07
艾维斯技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More importantly, current methods may result in ablation of corneal tissue that may be (significantly) higher than desired

Method used

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  • Customized cutting for correcting ametropia
  • Customized cutting for correcting ametropia
  • Customized cutting for correcting ametropia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0078] Possible embodiments of the present invention will be described below. For the sake of brevity, only a few embodiments may be described. Those skilled in the art will recognize that certain features described with reference to these embodiments may be modified and combined variously and that individual features may also be omitted if they are not required. The general explanations in the above sections also apply to the more detailed explanations below.

[0079] figure 1 An example flow diagram 100 is shown for customized corneal ablation with a device according to the present invention.

[0080] In this example, a device includes a corneal tomograph 101 , a control unit 105 (eg a computer, eg a central control unit), a biometer 108 and an excimer or solid state laser 106 . Reference numeral 102 denotes an operator, such as a treating physician. In this example, the apparatus may optionally include a pupillometer 103 and / or a scanning laser refractometer and / or a wa...

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PUM

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Abstract

The invention relates to a device, a computer program and a method for correcting ametropia of vision. In a first example, a position (480) of a desired focus point (440) relative to a retina of an individual eye may be determined based on obtained topographic information of an anterior corneal surface (401) and a posterior corneal surface (402) and refractive aberration information of the eye. In a second example, correction information (416, 496) related to the anterior corneal surface (401) may be determined based on the obtained topographic information of the anterior corneal surface (401) and posterior corneal surface (402) and based on the obtained topographic information of the anterior lens surface (431) and posterior lens surface (432) of the individual's eye to optimize focus onto the retina of the eye.

Description

technical field [0001] The present invention relates to customized ablation for correcting refractive errors of vision, and in particular, to the determination of a customized volume of corneal tissue to be ablated, a corresponding device, and a computer program. Background technique [0002] Refractive cornea surgery has evolved significantly over the past two decades, resulting in custom ablation profiles where ablation profiles are adapted to the specific needs of each patient to correct refractive errors in their vision. [0003] When treating the cornea to correct refractive errors of vision, the refractive error (eg, refractive aberration information) is usually first determined. In the prior art, the corneal refractive index is then used to calculate the lens-equivalent tissue volume required to correct the refractive aberration information to correct the patient's vision, and is treated by laser ablation of the calculated refractive error-corrected lens cornea. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/007
CPCA61F9/007A61F9/00763A61B3/107A61B3/1005A61B3/0025A61B3/103G16H40/63A61B3/102
Inventor G·迪波利托
Owner 艾维斯技术有限责任公司
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