Binocular Wavefront Sensor for Simultaneous Aberration Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for measuring and correcting optical aberrations in the human eye are limited to monocular vision, requiring duplication of systems for binocular vision, increasing complexity and cost, and failing to fully assess and correct aberrations in both eyes simultaneously.
Innovation Solution
A method and instrument that utilize a single wavefront sensor and aberration correction device to measure and control aberrations in both eyes simultaneously, allowing for complete or partial correction of aberrations and presentation of visual stimuli, enabling binocular assessment and correction of optical quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single wavefront sensor and aberration correction device are used for both eyes, then device complexity and cost are reduced, but measurement precision and reliability for binocular vision are compromised
Solution Approach 1:
The patent divides the measurement field into two separate measurement zones within the same wavefront sensor detector. The optical system separates light from the left eye and right eye onto different regions of the detector, allowing independent measurement of each eye's wavefront aberrations. This segmentation enables binocular measurement with a single device while maintaining measurement precision for each eye.
Solution Approach 2:
The wavefront sensor and aberration correction device are designed to serve multiple functions: measuring aberrations of both eyes simultaneously, correcting aberrations for both eyes, and presenting visual stimuli. This multi-functionality reduces overall system complexity and cost while maintaining the ability to perform precise binocular measurements.
2Measurement precision
If monocular measurement methods are duplicated for binocular vision, then measurement precision is maintained, but device complexity and cost increase
Solution Approach 1:
The patent combines two monocular measurement systems into a single binocular measurement system. The wavefront sensor simultaneously receives and processes light from both eyes, and the aberration correction device corrects aberrations for both eyes. This merging maintains measurement precision while reducing device complexity and cost compared to duplicating separate monocular systems.
3Adaptability or versatility
If visual stimuli are presented during aberration measurement and correction, then visual quality assessment is improved, but measurement accuracy may be affected
Solution Approach 1:
The patent enables continuous operation where visual stimuli are presented simultaneously with aberration measurement and correction. The wavefront sensor continuously measures aberrations, the correction device continuously adjusts to compensate for aberrations, and visual stimuli are continuously presented for quality assessment. This continuous operation improves versatility while maintaining measurement precision through real-time feedback control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and cost-effective binocular measurement and correction of aberrations, improving visual quality and reducing the complexity of electro-optical systems by using a single device for both eyes, while allowing for controlled evaluation of visual capacity.
Implementation Method 1
a single wavefront sensor and aberration correction device to measure and control aberrations in both eyes simultaneously
Implementation Method 2
adaptive optics as a technology capable of effectively acting on the wavefront of each eye in a controlled manner so as to manipulate aberrations in the eyes
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An ophthalmic instrument and method for measurement, control and manipulation of aberrations (1) of eyes (2, 3) that also enables simultaneous presentation of visual stimuli during operation of those. The instrument comprises a single aberration correction device (4), as well as a single aberration sensor (5), optically conjugated to each other by means of optical system (14). An illumination system (9) that introduces light beams into the two eyes. The measurement, control and manipulation of aberrations (1), as well as the presentation of visual stimuli (6), is carried out in a binocular (7, 8) and simultaneous manner.