Abstract
Purpose: Stereopsis is a fundamental skill in human vision and visual actions. There are many ways to test and quantify stereoacuity:
traditional paper and new digital applications are both valid ways to test the stereoacuity. The aim of this study is to compare
the results obtained using standard tests and the new Stereoacuity Test App developed by the University of Bergamo. Methods:
A group of 497 children (272 males), aged between 6 and 11 years old, were tested using different tests for the quantification
of stereopsis at near. These tests were TNO, Weiss EKW, and the new developed Stereoacuity Test App. Results: A one-way repeated
measure ANOVA showed that the three tests give different thresholds of stereoacuity (p < 0.0001). Post hoc analyses with Bonferroni
correction showed that all tests showed different thresholds (p < 0.0001). The lower threshold was obtained by Titmus Stereo
Test followed by Stereoacuity App, Weiss MKW, and TNO. Conclusion: The stereoacuity based on global stereopsis showed that
the better values were obtained in order by Stereoacuity Test App, TNO, and Weiss EKW. However, the clinical significance
of their values is similar. The new digital test showed a greater compliance by the child, showing itself in tune with the
digital characteristics of today's children. Keywords: Anaglyph colors; Binocular vision; Digital stereotest; Global stereopsis;
Randot stereotest; Stereo threshold; Stereoacuity.
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