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Calibration tools for PC-based vision assessment.

David J Rolkosky¹, Gislin Dagnelie, Kevin Kramer

¹Advanced Medical Electronics, Maple Grove, MN 55369, USA. drolkosky@ame-corp.com

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|December 8, 2009

Summary

The PC Vision system calibrates personal computers for accurate vision testing. This system monitors display properties and room conditions, ensuring reliable vision test results across various settings.

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Area of Science:

Ophthalmology and Vision Science
Computer Science and Engineering

Background:

Accurate vision testing requires controlled variables like display intensity, chromaticity, and ambient lighting.
Existing vision testing methods can suffer from unexplained discrepancies due to uncontrolled environmental and display factors.
Modern displays offer the technical capabilities for high-quality visual stimulus presentation.

Purpose of the Study:

To develop and detail the PC Vision system, a novel subsystem for personal computer-based vision testing.
To enable personal computers to function as accurately calibrated and controlled vision test instruments.
To address the need for standardized and reliable vision testing environments.

Main Methods:

The PC Vision system integrates two primary functions: screen property calibration and environmental condition monitoring.
A fully integrated hardware prototype was developed to package these functionalities.
The system is designed to control key variables affecting vision test outcomes.

Main Results:

The PC Vision system provides a means to calibrate modern displays (CRT, LCD, projector) for vision testing.
It monitors and controls critical environmental factors such as room illumination.
The integrated prototype demonstrates the feasibility of using PCs as calibrated vision test instruments.

Conclusions:

The PC Vision system offers a robust solution for achieving accurate and reproducible vision test results.
By controlling display and environmental variables, it minimizes discrepancies in vision testing.
This technology facilitates the use of personal computers as reliable and accessible vision testing tools.