Optometry Measurement Quality Control Across Devices and Sites

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Solution Overview

Problem

Existing optometric measurements for ophthalmic lenses vary in accuracy due to differences in instruments, care during measurements, and professional qualifications, leading to potential errors and wearer discomfort.

Innovation Solution

A method for quality control of optometry measurements involving calibration, digital signature, and evaluation criteria for optometry devices and professionals, with data processing and transmission across multiple sites to ensure standardized and reproducible measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different instruments and professionals are used for optometric measurements, then measurement versatility and accessibility are improved, but measurement precision and reliability deteriorate due to variations in accuracy

Engineering Contradiction:
Improvemeasurement accessibilityVSAvoidmeasurement accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent applies parameter changes by introducing evaluation criteria that assess measurement quality based on instrument parameters, professional qualifications, and measurement conditions. The system transforms raw measurement data into evaluated results with quality scores, allowing versatile measurement access while maintaining precision through systematic parameter evaluation and comparison against reference values.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple optometry devices and sites are used, then measurement coverage and adaptability are improved, but measurement reliability deteriorates due to lack of standardization

Engineering Contradiction:
Improvemeasurement coverageVSAvoidmeasurement consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements equipotentiality by establishing a standardized evaluation framework that equalizes measurement conditions across different devices and sites. All measurements are processed through the same evaluation criteria, reference value comparisons, and quality assessment algorithms, creating uniform measurement potential regardless of the specific device or location used.

Inventive Principle:
Principle #12Equipotentiality

3Ease of operation

If optometric measurements are performed without standardized evaluation, then ease of operation is improved, but manufacturing precision of ophthalmic lenses deteriorates due to measurement errors

Engineering Contradiction:
Improvemeasurement simplicityVSAvoidlens centering accuracy
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent applies feedback by providing evaluation results and quality scores back to the measurement process. The system compares measurements against reference values, identifies deviations, and provides feedback on measurement quality. This feedback loop enables operators to maintain simple measurement procedures while ensuring precision through systematic evaluation and corrective actions when quality thresholds are not met.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4242737B1Quality control method for optometric measurements
Publication Date: 2025.12.10 ESSILOR INTERNATIONAL(COMPAGNIE GENERALE D OPTIQUE)
  • EP4242737B1 patent drawingFigure 1
  • EP4242737B1 patent drawingFigure 2
  • EP4242737B1 patent drawingFigure 3

AI summary

The present invention relates to a method for quality control of optometry measurements comprising the following steps: (a) computer-recording a first record (14) comprising at least one first value of a first identifier (12) enabling the identification of a glasses wearer (1) and at least one other value of another identifier (13) enabling the identification of an optometry device (15) at a first optometry measurement site (10); (b) performing at least one optometry measurement (16) of the wearer; (c) transmitting to a second site (20) a set of digital measurement data (18) comprising the result of the optometry measurement (16) of step (b), the set of digital data (18) being computer-linked to the first record (14);(d) digitally process the optometry measurement result (16) of the first record (14) as a function of a digital data reference (45) and the values ​​of the respective identifiers of the glasses wearer (12) and the optometry device (13) of the first record (14).;