Journal article
Maintenance of normal fusion in intermittent exotropia
Ophthalmic & physiological optics, v 41(1), pp 33-41
Jan 2021
PMID: 33179304
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Purpose
To evaluate the reliability of the Bagolini filter bar and striated lenses for measuring the fusion maintenance score, which is the ability of participants with intermittent exotropia to maintain normal sensorimotor fusion.
Methods
Thirty‐two Chinese participants aged 7–20 years with intermittent exotropia (excluding the convergence insufficiency type) were enrolled in this prospective study. At the eligibility screening, visual acuity, cover test and assessment of the office control score were performed. At study visit 1, eligible participants underwent negative and positive fusional vergence tests at far and near, eye dominance test and the fusion maintenance test. All eligible participants returned for study visit 2 on the same day (2–4 h later) and the testing was repeated. The primary outcome measure was the intra‐class correlation coefficient of the fusion maintenance score between the two study visits.
Results
The intra‐class correlation coefficient of the fusion maintenance score was 0.84, indicating good reliability. There was no significant difference (mean difference = 0.05, p = 0.95) between the fusion maintenance scores for the first (5.62) and second study visits (5.57). The coefficient of repeatability and the smallest detectable change for the fusion maintenance scores were 7.6 and 6.3, respectively. The fusion maintenance score was significantly associated with the distance (Spearman correlation −0.57, p < 0.001) and near (Spearman correlation −0.4, p = 0.02) office control scores.
Conclusion
These data demonstrate that the fusion maintenance score is a reliable tool to evaluate sensorimotor fusion in intermittent exotropia. These results suggest that the fusion maintenance score may be a useful outcome measure in future clinical trials to evaluate the effectiveness of treatments for intermittent exotropia.
Metrics
Details
- Title
- Maintenance of normal fusion in intermittent exotropia
- Creators
- Martin Ming‐Leung Ma - Sun Yat‐sen UniversityYing Kang - Sun Yat‐sen UniversityMitchell Scheiman - Salus UniversityQiwen Chen - Sun Yat-sen UniversityXuelian Ye - Sun Yat-sen UniversityXiang Chen - Sun Yat-sen University
- Publication Details
- Ophthalmic & physiological optics, v 41(1), pp 33-41
- Publisher
- Wiley
- Number of pages
- 9
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Pennsylvania College of Optometry (PCO)
- Web of Science ID
- WOS:000613707600001
- Scopus ID
- 2-s2.0-85096641797
- Other Identifier
- 991021900197404721
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InCites Highlights
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- Collaboration types
- International collaboration
- Web of Science research areas
- Ophthalmology