AUTHOR=Wang Yuwen , Zheng Fuhao , Zhou Fengchao , Song E. 

TITLE=Assessment of precision and reliability of a novel computerized heterophoria test

JOURNAL=Frontiers in Neuroscience

VOLUME=17

YEAR=2023

URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2023.1207945

DOI=10.3389/fnins.2023.1207945

ISSN=1662-453X

ABSTRACT=<sec><title>Purpose</title><p>To assess the precision and reliability of a novel computerized heterophoria test (CHT).</p></sec><sec><title>Methods</title><p>One hundred and three subjects aged 20 to 48 (27.37 ± 5.15) were recruited from Wenzhou Medical University. All subjects with corrected spectacles were examined with CHT and a prism-neutralized objective cover test (POCT) in a randomized order. They were then re-examined with CHT within 1 week. Their heterophoria was measured at three different distances (3 m, 0.77 m and 0.4 m); the average was recorded after three consecutive measurements. Inter-examiner repeatability, intra-examiner repeatability of CHT and agreement between CHT and POCT were evaluated.</p></sec><sec><title>Results</title><p>There was no significant difference among repeated measurements using CHT (all <italic>p</italic> &gt; 0.05). The difference between POCT and CHT was statistically significant at three distances (all <italic>p</italic> &lt; 0.001). However, the mean absolute difference was 1.20<sup>△</sup>, 1.93<sup>△</sup>, and 2.41<sup>△</sup>, all of which were significantly smaller than the permissible range of error (4<sup>△</sup>) at three different distances (all <italic>p</italic> &lt; 0.001).</p></sec><sec><title>Conclusion</title><p>The CHT demonstrated excellent inter- and intra-examiner repeatability, as well as good correlation with POCT. The differences between CHT and POCT were within the permissible range of error, indicating that CHT could provide a precise and reliable measurement for clinical applications.</p></sec>