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Journal article
Objective Assessment of Disparity Vergence after Treatment of Symptomatic Convergence Insufficiency in Children
Optometry and vision science, v 96(1), pp 3-16
Jan 2019
PMID: 30570596
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
SIGNIFICANCE This first report of the use of objective measures of disparity vergence as outcome measures for symptomatic convergence insufficiency in children provides additional information that is not accessible with clinical tests. The study results also demonstrate that objective measures of vergence could be used in future randomized clinical trials of binocular vision disorders with children.
PURPOSE This study was designed to evaluate changes in objective measures of disparity vergence after office-based vergence/accommodative therapy (OBVAT) for convergence insufficiency in children 12 to 17 years old.
METHODS In this prospective trial, we recruited 10 participants with normal binocular vision and 12 with convergence insufficiency. All participants with convergence insufficiency were treated with 12 weeks of OBVAT. The primary outcome measure was average peak velocity for 4 degrees symmetrical convergence steps. Other objective outcome measures of disparity vergence included time to peak velocity, latency, and accuracy. Changes in clinical measures (near point of convergence, positive fusional vergence at near) and symptoms were evaluated.
RESULTS There was a statistically significant increase in peak velocity and more accurate response amplitude to 4 degrees symmetrical convergence step stimuli after OBVAT compared with baseline measurements. Near point of convergence, positive fusional vergence, and symptoms also statistically significantly improved after OBVAT. Ten of the 12 participants met clinical success criteria.
CONCLUSIONS In this prospective study on the treatment of symptomatic convergence insufficiency in children in which both clinical and objective eye movement measurements were used to evaluate the results of treatment, significant changes were found in symptoms and both clinical and objective measures of disparity vergence after completion of OBVAT in children with symptomatic convergence insufficiency.
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Details
- Title
- Objective Assessment of Disparity Vergence after Treatment of Symptomatic Convergence Insufficiency in Children
- Creators
- Mitchell Scheiman - Salus UniversityHenry Talasan - New Jersey Institute of TechnologyTara L. Alvarez - New Jersey Institute of Technology
- Publication Details
- Optometry and vision science, v 96(1), pp 3-16
- Publisher
- Lippincott Williams & Wilkins
- Number of pages
- 14
- Grant note
- NSF MRI CBET 1428425 / National Science Foundation; National Science Foundation (NSF) 1R01EY023261 / National Eye Institute; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Eye Institute (NEI) R01EY023261 / NATIONAL EYE INSTITUTE; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Eye Institute (NEI)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Pennsylvania College of Optometry (PCO)
- Web of Science ID
- WOS:000454906900002
- Scopus ID
- 2-s2.0-85059246059
- Other Identifier
- 991021900196504721
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- Web of Science research areas
- Ophthalmology