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Evaluation of a Virtual Reality implementation of a binocular imbalance test

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  • Santiago Martín
  • Juan A Portela
  • Jian Ding
  • Oliver Ibarrondo
  • Dennis M Levi

Abstract

The purpose of this study was (1) to implement a test for binocular imbalance in a Virtual Reality headset, (2) to assess its testability, reliability and outcomes in a population of clinical patients and (3) to evaluate the relationships of interocular acuity difference, stereoacuity and binocular imbalance to amblyogenic risk factors. 100 volunteers (6 to 70 years old, mean 21.2 ± 16.2), 21 with no amblyogenic risk factors and 79 with amblyopia or a history of amblyopia participated. Participants were classified by amblyogenic risk factor (24 anisometropic, 25 strabismic and 30 mixed) and, for those with strabismus, also by refractive response (16 accommodative and 39 non-accommodative). We characterized our sample using three variables, called the ‘triplet’ henceforth: interocular acuity difference, stereoacuity and imbalance factor. Binocular imbalance showed high test-retest reliability (no significant difference between test and retest in a subgroup, n = 20, p = 0.831); was correlated with Worth 4 dots test (r = 0.538, p

Suggested Citation

  • Santiago Martín & Juan A Portela & Jian Ding & Oliver Ibarrondo & Dennis M Levi, 2020. "Evaluation of a Virtual Reality implementation of a binocular imbalance test," PLOS ONE, Public Library of Science, vol. 15(8), pages 1-16, August.
    • Handle: RePEc:plo:pone00:0238047
    DOI: 10.1371/journal.pone.0238047
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