Motorized Screen Positioning to Reduce Accommodation Paresis
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Solution Overview
Problem
Prolonged viewing of a computer screen at a fixed distance leads to accommodation paresis, a transient inability to focus, causing blurry vision, which existing remedies like regular breaks and accommodative facility training only partially address.
Innovation Solution
An anti-accommodation paresis apparatus that couples to a computer screen, featuring a controller and motor system to slowly and automatically move the screen closer to and farther away from the viewer at a predetermined speed, mimicking accommodative facility training to continuously exercise eye muscles and reduce eye strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the computer screen is kept stationary at a fixed distance, then the viewer can maintain stable viewing position, but accommodation paresis occurs due to prolonged fixed-distance viewing
Solution Approach 1:
The patent applies the Dynamics principle by transforming the static computer screen into a dynamically movable one. The motorized positioning system enables the screen to automatically adjust its distance from the viewer along the optical axis, creating controlled motion that exercises the eye's accommodation muscle while maintaining comfortable viewing conditions. This dynamic adjustment prevents accommodation paresis by periodically changing the focal distance without requiring manual intervention.
2Object-affected harmful factors
If the screen moves quickly or over large distances, then accommodation exercise effect is enhanced, but the viewer is distracted from viewing content
Solution Approach 1:
The patent applies the Parameter changes principle by precisely controlling the motion parameters of the screen. The system adjusts the amplitude (distance range), frequency (speed), and duration of screen movements to optimize the accommodation exercise effect while keeping movements imperceptible to the viewer. By fine-tuning these parameters, the system achieves therapeutic benefit without disrupting the viewing experience or causing distraction.
3Object-affected harmful factors
If manual breaks are taken to look at objects at different focal points, then accommodation paresis is reduced, but productivity and time efficiency decrease
Solution Approach 1:
The patent applies the Self-service principle by implementing an automated system that performs the accommodation exercise function without requiring user action. The motorized positioning system autonomously adjusts the screen distance according to predetermined patterns, eliminating the need for users to manually take breaks or perform focusing exercises. This self-service approach maintains productivity while effectively preventing accommodation paresis.
Solution Approach 2:
The patent applies the Continuity of useful action principle by enabling continuous, automated accommodation exercise during normal viewing activities. Rather than requiring discontinuous breaks from work, the system continuously and subtly adjusts the screen position to maintain eye muscle engagement throughout the viewing period, thereby preventing accommodation paresis without interrupting productivity.
4Object-affected harmful factors
If accommodative facility training is performed manually, then some improvement in accommodation is achieved, but the process is time-consuming and requires active participation
Solution Approach 1:
The patent applies the Mechanics substitution principle by replacing manual eye-focusing exercises with an automated mechanical system. Instead of relying on the user to actively perform accommodative facility training exercises, the motorized positioning system mechanically adjusts the screen distance to provide the same therapeutic effect. This substitution eliminates the need for time-consuming manual training while achieving equivalent or superior accommodation improvement.
Data Source
AI summary
An anti-accommodation paresis apparatus for a computer screen may include a controller configured to emit a control signal to drive a motor operably coupled to the controller and responsive thereto, and a computer screen support configured to couple to a computer screen, the computer screen support mechanically coupled to the motor. The motor may be configured to receive the control signal and operate to move the computer screen support closer to and farther away from a viewer of the computer screen according to an automated, predetermined pattern at a predetermined speed of movement selected to reduce accommodation paresis of the viewer.