An Evaluation of the Agreement Between a Computerized Stereoscopic Game Test and the TNO Stereoacuity Test



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Portela Camino, Juan Antonio and Martín González, Santiago and Ruiz Alcocer, Javier and Illarramendi Mendicute, Igor and Garrido Mercado, Rafaela (2021) An Evaluation of the Agreement Between a Computerized Stereoscopic Game Test and the TNO Stereoacuity Test. Clinical Optometry, 13 . pp. 181-190. ISSN 1179-2752

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Purpose: Stereo-anomaly is commonly associated with amblyopia. An investigation was conducted to determine whether the measurements of stereoacuity obtained with the stereoacuity reference test (TNO Test) show an agreement with a computer stereoscope video game.
Methods: Thirty-two subjects (mean age 9.37±2.00 years) with an amblyopia history were selected for a blind and randomized study of stereoacuity improvement through a new random dot game. A masked examiner measured the stereoacuity three times per subject using the TNO test (at the beginning, at the end and after 6 months of the treatment). A second masked examiner measured stereoacuity using the new computerized game after the TNO masked evaluation.
Results: The Pearson’s correlation coefficient one test against the other was r2 = 0.767 and the Bland–Altman plot was r2= 0.069 (mean difference −0.03 log sec). Using three categories: poor (840–300 seconds of arc), coarse (480–210 seconds of arc) and moderate–fine stereoacuity (210–30 seconds of arc). Positive predictive values were 89.5% for moderate–fine; 72.7% for coarse; and 90.0% for poor stereoacuity. In addition, the agreement was evaluated using the Kappa coefficient (K= 0.743) with a 0.95 confidence interval and lower and upper Kappa limits were (0.628 and 0.858), respectively. Kappa coefficient and limits were still good when analyzing data before (K =0.663, 0.420 and 0.906) and after the treatment (K= 0.765, 0.632 and 0.899).
Conclusion: The Computerized Stereoscopic Game test allows the measure of stereoacuity. It can be used for both the purpose of detecting stereo vision deficits or tracking stereo vision development.

Item Type:Article
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Received: 4 March 2021 / Accepted: 15 June 2021 / Published: 5 July 2021.

Uncontrolled Keywords:Amblyopia; Computerized game test; Gamification; Stereoacuity; TNO test
Subjects:Medical sciences > Optics > Optometry
Medical sciences > Optics > Physiological optics
ID Code:67564
Deposited On:01 Dec 2021 13:12
Last Modified:01 Dec 2021 15:41

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