Progressive Ophthalmic Device Personalization With Historical Vision Data
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Solution Overview
Problem
Current methods for manufacturing progressive ophthalmic lenses fail to account for previously measured parameters due to frequent changes of opticians, lack of prior measurements, or failure to save these values, leading to suboptimal adaptation to individual visual needs.
Innovation Solution
A method for determining personalized progressive ophthalmic visual compensation devices that records and utilizes individual parameters before the onset of presbyopia, storing them in a database with time indicators, and uses these values to determine the desired geometric or optical parameters for new lenses, considering time-evolving behaviors and preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If previous measurement values are not stored or saved, then the manufacturing process remains simple and quick, but the adaptation to individual visual needs deteriorates
Solution Approach 1:
The system performs preliminary measurements and stores parameter values before the actual lens manufacturing process. By collecting and storing individual visual parameters (such as pupillary distance, facial geometry, and visual behavior data) in advance in a database, the system ensures that when manufacturing occurs, all necessary personalized data is already available, enabling both simple execution of the manufacturing process and high adaptability to individual needs
Solution Approach 2:
A database system acts as an intermediary between the measurement phase and the manufacturing phase. This intermediary stores and manages individual parameter values, allowing seamless transfer of personalized data from measurement to manufacturing without requiring direct continuous interaction between these processes, thus simplifying the manufacturing workflow while maintaining full adaptability
2Measurement precision
If measurements are taken frequently and continuously, then the personalization accuracy improves, but the time and complexity of the process increases
Solution Approach 1:
The system performs comprehensive measurements and stores parameter values in advance before lens manufacturing is required. By collecting all necessary visual parameters (refraction data, pupillary distance, facial geometry, visual behavior patterns) during preliminary visits or assessments and storing them in a database, the system achieves high personalization accuracy without requiring repeated measurements at the time of manufacturing, thus reducing time loss
Solution Approach 2:
The system maintains continuous availability of measured parameter values through database storage, allowing the manufacturing process to continuously access and utilize the stored data without interruption. This continuity ensures that the useful action of personalization remains active throughout the process while avoiding redundant measurements, optimizing both accuracy and time efficiency
3Productivity
If previous measurement values are ignored, then the manufacturing process remains fast and straightforward, but the quality of visual compensation deteriorates
Solution Approach 1:
A database system serves as an intermediary that preserves and transmits previous measurement values from the measurement phase to the manufacturing phase. This intermediary ensures that historical data (visual acuity, refraction parameters, pupillary distance, facial geometry) is not lost or ignored but is systematically retrieved and applied during manufacturing, enabling both fast production and high quality visual compensation
Solution Approach 2:
The system implements feedback by retrieving previously stored measurement values and using them to guide the current manufacturing process. The database stores historical data and feeds it back into the manufacturing system, allowing the process to continuously improve quality by learning from and adapting to individual patient characteristics over time, while maintaining efficient production speeds
Data Source
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AI summary
The invention relates to a method for determining a progressive ophthalmic device for personalised visual compensation for an individual, according to which the following steps are performed: a) in a first data acquisition phase, determining at least at a first time preceding the appearance of the presbyopia of this individual, at least one value of at least one individual parameter of said individual, and recording each value of the individual parameter of the wearer in a database, in correlation with an associated temporal indicator, b) in a second determination step of the progressive ophthalmic device for personalised visual compensation, determining a desired value of at least one geometric or optical parameter of said progressive ophthalmic device for visual compensation, taking account of said at least one value of the individual parameter determined in step a) and the associated temporal indicator.