LASIK Flap Aberration Compensation via Deconvolution

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Solution Overview

Problem

LASIK refractive surgery induces changes in corneal refraction and high-order aberrations, such as spherical aberration, coma, and trefoil, which affect treatment outcomes and are not adequately addressed by existing methods.

Innovation Solution

The use of deconvolution techniques and statistical analysis to estimate and adjust for flap-induced aberrations based on site-specific, surgeon-specific, and tool-specific parameters, allowing for customized treatment planning and compensation during LASIK procedures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If deconvolution techniques and statistical analysis are used to estimate and adjust for flap-induced aberrations, then treatment precision is improved, but device complexity and data processing requirements increase

Engineering Contradiction:
Improvetreatment precisionVSAvoiddata processing complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary statistical analysis and deconvolution techniques during the treatment planning phase to estimate flap-induced aberrations before the actual LASIK procedure. By pre-calculating compensation values based on site-specific, surgeon-specific, and tool-specific parameters, the system reduces the need for complex real-time processing during surgery, thus improving treatment precision while managing device complexity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system creates a computational model (copy) of the flap creation process and its induced aberrations using statistical data from multiple sources. This virtual model allows the system to predict and compensate for aberrations without requiring complex physical measurement devices during surgery, thereby improving treatment precision while minimizing additional hardware complexity.

Inventive Principle:
Principle #26Copying

2Adaptability or versatility

If site-specific, surgeon-specific, and tool-specific parameters are collected and analyzed, then treatment customization is improved, but data collection requirements and processing time increase

Engineering Contradiction:
Improvetreatment customizationVSAvoiddata processing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system merges multiple data sources including site-specific statistical analyses, surgeon-specific historical data, and tool-specific parameters into a unified computational model. By integrating these diverse parameters into a single comprehensive framework, the system achieves high treatment customization without requiring separate processing for each parameter type, thus improving adaptability while reducing overall processing time.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system transforms raw clinical data into standardized parameters that can be efficiently processed by the deconvolution algorithm. By converting diverse input data (site statistics, surgeon techniques, tool specifications) into a common parameter format, the system enables comprehensive treatment customization while minimizing the time required for data collection and processing.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If flap-induced aberrations are compensated for through adjusted treatment planning, then post-operative visual quality is improved, but treatment planning complexity increases

Engineering Contradiction:
Improvepost-operative visual qualityVSAvoidtreatment planning complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system incorporates feedback from statistical analysis of post-operative outcomes from previous procedures to continuously refine the deconvolution model. By using historical data on actual flap-induced aberrations and their compensation effectiveness, the system automatically adjusts treatment planning parameters, improving post-operative visual quality while reducing the need for manual intervention and simplifying the overall planning process.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10028862B2Compensation systems and methods for flap induced aberrations
Publication Date: 2018.07.24 AMO DEVELOPMENT LLC
  • US10028862B2 patent drawing
  • US10028862B2 patent drawing
  • US10028862B2 patent drawing

AI summary

Embodiments of the present invention encompass systems and methods for customized vision treatments that account for effects associated with corneal flap creation.