![]() However, the Titmus and Randot circle tests produced better stereoacuity results compared to the random dot-based Randot Preschool Stereoacuity Test for patients with a history of anomalous binocular vision.ĭistance is a significant influencing factor in the results of stereoacuity in patients with intermittent exotropia who have worsened stereoacuity with increased distance ( 6, 7). Fawcett ( 5) found that stereoacuity scores of healthy participants using Titmus circles, Randot circles, and Preschool Randot (random dot) did not differ significantly. As the measurements are all based on different disparities, the neural processing may be different. The former stereopsis tests are called “local stereopsis”, while the latter tests are called “global stereopsis”. Two types of test graphs commonly used in clinical stereopsis testing are contour-based and random dot-based. The cause of this inconsistency in results may be due to the different size, shape, and familiarity of the test symbols, difference in viewing distance, or the use of spectacles ( 1). Many methods are used to test stereopsis however, the results differ when using different applications which results in a poor correlation between the different stereo tests. Stereopsis enables depth to be judged precisely. ![]() Keywords: Stereopsis contour-based graphs random dot-based graphs computer There was a high level of agreement between the methods using Bland-Altman statistical analysis.Ĭonclusions: In a population with normal stereopsis, the stereoacuity is stable regardless of the test graphs used (contour-based or random-dot based) or the test distance (far or near). Similarly, no significant difference between far and near distance was found for contour-based or random-dot graphs (Wilcoxon signed-rank test: P values were all >0.05). Results: No significant difference was found between contour-based and random-dot graphs regardless of the distance. Laptop equipment 3D shutter glasses were used to test distance stereoacuity and two 4K smartphones were used to test near stereoacuity with contour-based and random dot-based graphs. ![]() Methods: Thirty participants with normal visual acuity and stereopsis were recruited. The aim of this study was to investigate the difference between stereoacuity tests using contour-based and random dot-based graphs at far and near distances. ![]() Policy of Dealing with Allegations of Research Misconductīackground: Different methods to test stereopsis lead to different results.Policy of Screening for Plagiarism Process. ![]()
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