Holographic Refraction Eye Testing System for Binocular Assessment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional eye examination methods, such as the phoropter, are limited in assessing binocularity beyond primary gaze positions and restrict peripheral vision, leading to incomplete refractive corrections and potential overcorrection or imbalance.
Innovation Solution
A holographic refraction eye testing system that uses a head-mounted display to project three-dimensional targets, allowing patients to focus on these targets in various gaze positions, enabling comprehensive refractive state and binocularity assessment through hand movements or voice commands, determining the necessary lens power for optimal visual acuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a phoropter is used for refraction examination, then the refractive state can be assessed at primary gaze position, but the peripheral field of vision is blocked and binocularity cannot be assessed in other meridian positions
Solution Approach 1:
The patent transitions from a two-dimensional planar display to a three-dimensional volumetric holographic display. The holographic refraction device creates a real image in three-dimensional space that can be viewed from multiple angles and positions, enabling assessment of binocularity in all nine cardinal positions of gaze rather than being limited to primary gaze only.
Solution Approach 2:
The patent introduces a holographic display system as an intermediary between the patient and the refraction targets. This intermediary creates virtual targets in three-dimensional space that can be positioned at various locations without requiring the patient to move their eyes to extreme positions, thereby enabling comprehensive binocular assessment while maintaining comfortable viewing conditions.
2Ease of operation
If a phoropter is positioned before the patient's face, then refraction can be performed, but peripheral vision is restricted and attentional visual process is affected
Solution Approach 1:
The patent extracts the refraction targets from the physical phoropter device and projects them into three-dimensional space using a holographic display. This removes the physical obstruction caused by the phoropter frame, allowing the patient's peripheral vision to remain unobstructed while still presenting the necessary refraction targets for examination.
Solution Approach 2:
The patent replaces the mechanical phoropter system with a holographic projection system. Instead of using physical lenses and a mechanical device positioned in front of the patient, the system uses optical fields and virtual images in three-dimensional space, eliminating the need for a physical instrument that blocks peripheral vision.
3Manufacturing precision
If refraction is performed with a phoropter, then lenses and prisms can be prescribed for primary gaze, but corrections for other gaze positions cannot be determined
Solution Approach 1:
The patent creates a universal assessment system that can evaluate refractive needs across all nine cardinal positions of gaze using a single holographic display device. The system presents targets in three-dimensional space that can be positioned to stimulate each gaze position, enabling comprehensive prescription of lenses and prisms that address binocular imbalances in all directions rather than only primary gaze.
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
This system provides a more comprehensive evaluation of refractive states and binocularity in nine cardinal positions, allowing for precise prescription of lenses and prisms, reducing the risk of overcorrection and imbalance by considering the patient's full field of vision.
Implementation Method 1
using holographic projection for each eye
Implementation Method 2
Refraction means to bend light. The myopic eye will focus on the near side of the target and see it with clarity. The dimensions and position of the target is then moved to refocus the far or distance side of the target
Data Source
AI summary
A system and a method for holographic refraction eye testing device is disclosed. The system renders one or more three dimensional objects within the holographic display device. The system updates the rendering of the one or more three dimensional objects within the holographic display device, by virtual movement of the one or more three dimensional objects within the level of depth. The system receives input from a user indicating alignment of the one or more three dimensional objects after the virtual movement. The system determines a delta between a relative virtual position of the one or more three dimensional objects at the moment of receiving input and an optimal virtual position and generates prescriptive remedy based on the delta.