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dc.contributor.authorHess, R.F.*
dc.contributor.authorDing, R.*
dc.contributor.authorClavagnier, S.*
dc.contributor.authorLiu, C.*
dc.contributor.authorGuo, C.*
dc.contributor.authorViner, Catherine*
dc.contributor.authorBarrett, Brendan T.*
dc.contributor.authorRadia, Krupali*
dc.contributor.authorZhou, J.*
dc.date.accessioned2016-11-02T12:27:22Z
dc.date.available2016-11-02T12:27:22Z
dc.date.issued2016-03
dc.identifier.citationHess RF, Ding R, Clavagnier S, Liu C, Guo C, Viner C, Barrett BT, Radia K and Zhou R (2016) A Robust and Reliable Test to Measure Stereopsis in the Clinic. Investigative Ophthalmology & Visual Science. 57: 798-804.
dc.identifier.urihttp://hdl.handle.net/10454/10183
dc.descriptionYes
dc.description.abstractPurpose: The purpose of this study was to develop a convenient test of stereopsis in the clinic that is both robust and reliable and capable of providing a measure of variability necessary to make valid comparisons between measurements obtained at different occasions or under different conditions. Methods: Stereo acuity was measured based on principles derived from the laboratory measurement of stereopsis (i.e., staircase method). Potential premeasurement compensations are described if there is a significant degree of ocular misalignment, reduced visual acuity, or aniseikonia. Forty-six adults at McGill University, 44 adults at Auckland University, and 51 adults from the University of Bradford, with an age range of 20 to 65 years old and normal or corrected-to-normal vision participated in this study. Results: Stereo acuity within this normal population was widely distributed, with a significant percentage (28%) of the population with only coarse stereo (>300 arc seconds). Across subjects, the SD was approximately 25% of the mean. Measurements at two different times were strongly (r = 0.79) and significantly (P < 0.001) correlated, with little to no significant (P = 0.79) bias (0.01) between test and retest measures of stereopsis. Conclusions: The application enables measurements over the wide disparity range and not just at the finest disparities. In addition, it allows changes in stereopsis of the order of 1.9 to be statistically distinguished.
dc.language.isoen
dc.rights© 2016 The Authors. Published by ARVO. Reproduced in accordance with the publisher's self-archiving policy. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
dc.subjectStereo acuity
dc.subjectMeasurement of stereopsis
dc.subjectClinic
dc.subjectiPod stereogram test app
dc.titleA Robust and Reliable Test to Measure Stereopsis in the Clinic
dc.status.refereedYes
dc.typeArticle
dc.type.versionPublished version
dc.identifier.doihttps://doi.org/10.1167/iovs.15-18690
dc.rights.licenseCC-BY-NC-ND
refterms.dateFOA2018-07-26T09:07:57Z
dc.openaccess.statusopenAccess


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