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A novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia

BACKGROUND: To investigate dynamic stereopsis in intermittent exotropia [X(T)] patients using a novel dynamic random-dot stereopsis assessment method. METHODS: A novel dynamic random-dot stereopsis test was performed using novel self-programmed software, which consisted of red and green dots and fou...

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Autores principales: Zhong, Jing, Deng, Daming, Chen, Zidong, Li, Jinrong, Yuan, Junpeng, Feng, Lei, Yu, Minbin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: AME Publishing Company 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7944283/
https://www.ncbi.nlm.nih.gov/pubmed/33708935
http://dx.doi.org/10.21037/atm-20-3896
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author Zhong, Jing
Deng, Daming
Chen, Zidong
Li, Jinrong
Yuan, Junpeng
Feng, Lei
Yu, Minbin
author_facet Zhong, Jing
Deng, Daming
Chen, Zidong
Li, Jinrong
Yuan, Junpeng
Feng, Lei
Yu, Minbin
author_sort Zhong, Jing
collection PubMed
description BACKGROUND: To investigate dynamic stereopsis in intermittent exotropia [X(T)] patients using a novel dynamic random-dot stereopsis assessment method. METHODS: A novel dynamic random-dot stereopsis test was performed using novel self-programmed software, which consisted of red and green dots and four blocks on the screen. The test included motion + disparity (MD), motion (M), and disparity (D), where the D cues ranged from 200 to 1,200 arc-seconds. The characteristics of preoperative dynamic stereopsis in 83 X(T) patients and associations with clinical features were analysed, and the prognosis was followed up on the 1(st) day and at the 2(nd), 6(th) and 12(th) months postoperatively. RESULTS: Preoperatively, the mean reciprocal values of near and far stereopsis were 0.013±0.0016 and 0.0011±0.0005 arc-seconds in static stereopsis patients, respectively, and the MD, M, and D values were 0.002±0.0002, 0.0018±0.0001, and 0.0012±0.0002 arc-seconds in dynamic stereopsis, respectively. The MD value was negatively correlated with the Newcastle control score, disease course, and prism deviations (P<0.05), M was correlated with disease course and the Newcastle control score (P<0.05), and D was not correlated with any clinical features. Postoperative dynamic stereopsis improved from the 1(st) day and gradually peaked at the 6(th) month, while static stereopsis showed a decreased tendency in near but not far stereopsis. CONCLUSIONS: The dynamic stereopsis quantitative evaluation method based on random dots is a feasible test and shows that destruction of X(T) patients’ dynamic stereopsis is affected by age at surgery, disease course, strabismus controllability and the strabismus degree.
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spelling pubmed-79442832021-03-10 A novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia Zhong, Jing Deng, Daming Chen, Zidong Li, Jinrong Yuan, Junpeng Feng, Lei Yu, Minbin Ann Transl Med Original Article BACKGROUND: To investigate dynamic stereopsis in intermittent exotropia [X(T)] patients using a novel dynamic random-dot stereopsis assessment method. METHODS: A novel dynamic random-dot stereopsis test was performed using novel self-programmed software, which consisted of red and green dots and four blocks on the screen. The test included motion + disparity (MD), motion (M), and disparity (D), where the D cues ranged from 200 to 1,200 arc-seconds. The characteristics of preoperative dynamic stereopsis in 83 X(T) patients and associations with clinical features were analysed, and the prognosis was followed up on the 1(st) day and at the 2(nd), 6(th) and 12(th) months postoperatively. RESULTS: Preoperatively, the mean reciprocal values of near and far stereopsis were 0.013±0.0016 and 0.0011±0.0005 arc-seconds in static stereopsis patients, respectively, and the MD, M, and D values were 0.002±0.0002, 0.0018±0.0001, and 0.0012±0.0002 arc-seconds in dynamic stereopsis, respectively. The MD value was negatively correlated with the Newcastle control score, disease course, and prism deviations (P<0.05), M was correlated with disease course and the Newcastle control score (P<0.05), and D was not correlated with any clinical features. Postoperative dynamic stereopsis improved from the 1(st) day and gradually peaked at the 6(th) month, while static stereopsis showed a decreased tendency in near but not far stereopsis. CONCLUSIONS: The dynamic stereopsis quantitative evaluation method based on random dots is a feasible test and shows that destruction of X(T) patients’ dynamic stereopsis is affected by age at surgery, disease course, strabismus controllability and the strabismus degree. AME Publishing Company 2021-02 /pmc/articles/PMC7944283/ /pubmed/33708935 http://dx.doi.org/10.21037/atm-20-3896 Text en 2021 Annals of Translational Medicine. All rights reserved. https://creativecommons.org/licenses/by-nc-nd/4.0/Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0 (https://creativecommons.org/licenses/by-nc-nd/4.0/) .
spellingShingle Original Article
Zhong, Jing
Deng, Daming
Chen, Zidong
Li, Jinrong
Yuan, Junpeng
Feng, Lei
Yu, Minbin
A novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia
title A novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia
title_full A novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia
title_fullStr A novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia
title_full_unstemmed A novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia
title_short A novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia
title_sort novel dynamic random-dot stereopsis assessment to measure stereopsis in intermittent exotropia
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7944283/
https://www.ncbi.nlm.nih.gov/pubmed/33708935
http://dx.doi.org/10.21037/atm-20-3896
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