Interocular Image Delay for Amblyopia Visual Cortex Plasticity
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Solution Overview
Problem
Amblyopia, a condition characterized by reduced vision in a structurally normal eye due to abnormal binocular visual experience during infancy or early childhood, is challenging to treat effectively, especially beyond a critical neurodevelopmental window, with existing methods like occlusion therapy and contrast reduction showing limited efficacy.
Innovation Solution
A system that delivers images to each eye with a controlled delay, using methods such as polarization, active-shutter glasses, or virtual reality headsets, to alter the timing of visual stimulus presentation and induce synaptic plasticity in the visual cortex, enhancing the affected eye's functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If occlusion therapy or contrast reduction is used to treat amblyopia, then visual function in the affected eye may be improved, but the treatment is ineffective after a certain age and fails to adequately address abnormal visual experience and synaptic plasticity issues
Solution Approach 1:
The patent applies parameter changes by introducing temporal delay as a new parameter in visual stimulus presentation. By systematically varying the delay factor (ranging from 0 to 1000 milliseconds) between images presented to each eye, the treatment creates abnormal visual experiences that stimulate synaptic plasticity in the visual cortex, thereby extending effective treatment beyond traditional age limits and improving overall treatment reliability
2Reliability
If traditional amblyopia treatments are applied, then some visual improvement may be achieved, but they fail to adequately stimulate synaptic plasticity and address the root causes of abnormal visual processing
Solution Approach 1:
The patent applies preliminary anti-action by introducing controlled temporal delays that preemptively counteract the abnormal visual experience. The delay factor is specifically designed to create temporal disparities that oppose the suppressive mechanisms in amblyopia, thereby preventing further abnormal visual processing while stimulating corrective synaptic plasticity in the visual cortex
3Ease of operation
If images are presented simultaneously to both eyes, then normal binocular vision is maintained, but synaptic plasticity cannot be stimulated to treat amblyopia
Solution Approach 1:
The patent applies preliminary action by pre-calculating and applying specific delay factors to images before presentation to each eye. This preliminary temporal adjustment creates the necessary abnormal visual experience to stimulate synaptic plasticity, while the entire process is automated through computer-controlled display systems, maintaining ease of operation despite the complexity of the underlying mechanism
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
The controlled interocular delay in image presentation promotes neural and synaptic plasticity, potentially improving visual cortical responsiveness and function in the affected eye, offering a more effective treatment for amblyopia.
Implementation Method 1
The display system may use polarization to selectively deliver the first image and the second image
Implementation Method 2
using technologies like virtual reality headsets and 3D televisions with polarization or chromatic filters
Data Source
AI summary
A system and methods for the treatment of amblyopia are described. The system includes a display system capable of delivering a second image to a second eye of a patient and a first image to a first eye of a patient. The system also includes a controller capable of delaying the delivery of the second image to the second eye of the patent. The controller is configured to receive the second image and the first image. The controller is also configured to identify a delay factor associated with the second image. The controller is also configured to provide the first image to the display system for viewing by the first eye of the patient. The controller is also configured such that after a delay determined by the delay factor, the controller provides the second image to the display system for viewing by the second eye of the patient.