[Electronic eikonometer: Measurement tests displayed on stereoscopic screen]

Area of Science:

• Ophthalmology
• Vision Science
• Optometry

Background:

• Binocular vision assessment traditionally requires complex optical systems.
• Existing eikonometer tests can be cumbersome to set up and operate.
• Accurate measurement of binocular disparity and its perceptual effects is crucial for diagnosing visual anomalies.

Purpose of the Study:

• To present an electronic eikonometer system for analyzing and measuring perceptual effects of binocular disparity.
• To simplify the process of testing aniseikonia, fixation disparity, retinal correspondence, and stereopsis.
• To provide a user-friendly platform for practitioners in binocular vision assessment.

Main Methods:

• Development of "built-in magnification tests" presented on a stereoscopic screen.
• Integration of Ogle Spatial Test, Fixation Disparity test, nonius horopter, and random-dot stereograms (RDS).
• Utilizing a mini-computer for preprogrammed tests with variable parameters and active/passive stereoscopic display.

Main Results:

• The new system simplifies the reproduction and installation of binocular vision tests.
• It allows for direct observation and measurement without intermediate optical systems.
• Methodologies for operator manipulation and examination types are developed.

Conclusions:

• The electronic eikonometer offers a more accessible and efficient method for functional exploration of binocular vision.
• Theoretical studies on aniseikonia reduction using matrix calculations are recalled.
• Software for these tests is available upon request, promoting wider clinical adoption.