Vergence Orthoptics: Validity and Persistence of the Training Effect

Grisham, J D; Bowman, Margo; Owyang, L. A.; Chan, C. L.

doi:10.1097/00006324-199106000-00005

Cited by 21 publications

(14 citation statements)

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“…They reported most subjects who were asymptomatic after 12 weeks of VT maintained both improved symptoms and signs 1 year after completion of the VT program. The long-term maintenance of the treatment effect was consistent with earlier studies, 23,24 which reported little or no regression of symptoms or signs for CI subjects assessed 9 months to 2 years post VT, after being initially classified as cured. Certainly, more studies assessing the effectiveness of VT for CI or combined CI with AI should be conducted to verify these evidencebased results.…”

Section: Introductionsupporting

confidence: 87%

Effectiveness of vision therapy for convergence dysfunctions and long‐term stability after vision therapy

Shin

Park

Maples

2011

Ophthalmic Physiologic Optic

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Section: Introductionsupporting

confidence: 87%

Effectiveness of vision therapy for convergence dysfunctions and long‐term stability after vision therapy

Shin

Park

Maples

2011

Ophthalmic Physiologic Optic

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“…The overall 1-year probability of symptoms or signs recurring varied from a high of 33% in the HBPP group to a low of 16% in the OBVAT group. The modest recurrence rate in the OBVAT group cannot be compared with that reported in previous studies3–6 because those studies only included adult patients and investigated home-based vision therapy/orthoptics. Moreover, these studies had other design issues such as small sample sizes, high dropout rates, variable lengths of follow up, varying criteria for successful treatment, or retrospective investigations.…”

Section: Discussionmentioning

confidence: 82%

“…The literature on the long-term effectiveness of vision therapy/orthoptics for convergence insufficiency consists of a small number of studies with significant design limitations including retrospective design, small sample size, variable lengths of follow-up, unmasked examiners, and adult patient populations 3–6. In addition, previous research has only addressed home-based vision therapy/orthoptics.…”

mentioning

confidence: 99%

Long-Term Effectiveness of Treatments for Symptomatic Convergence Insufficiency in Children

2009

Optometry and Vision Science

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Purpose To assess the long-term stability of improvements in symptoms and signs in 9- to 17-year-old children enrolled in the Convergence Insufficiency Treatment Trial who were asymptomatic after treatment for convergence insufficiency (CI). Methods Seventy-nine patients who were asymptomatic after a 12-week therapy program for CI were followed for 1 year [33/60 in office-based vergence/accommodative therapy (OBVAT), 18/54 in home-based pencil push-ups (HBPP), 12/57 in home-based computer vergence/accommodative therapy and pencil push-ups (HBCVAT+), and 16/54 in office-based placebo therapy (OBPT)]. Symptoms and clinical signs were measured 6 months and 1 year after completion of the 12-week therapy program. The primary outcome measure was the mean change on the CI Symptom Survey (CISS). Secondary outcome measures were near point of convergence (NPC), positive fusional vergence at near (PFV), and proportions of patients who remained asymptomatic or who were classified as successful or improved based on a composite measure of CISS, NPC, and PFV. Results One-year follow-up visit completion rate was 89% with no significant differences between groups (p=0.26). There were no significant changes in the CISS in any treatment group during the 1-year follow-up. The percentage who remained asymptomatic in each group was 84.4% (27/32) for OBVAT, 66.7% (10/15) for HBPP, 80% (8/10) for HBCVAT+, and 76.9% (10/13) for OBPT. The percentage who remained either successful or improved 1-year post-treatment was 87.5% (28/32) for OBVAT, 66.6% (10/15) for HBPP, 80% (8/10) for HBCVAT+, and 69.3% (9/13) for OBPT. Conclusions Most children aged 9 to 17 years who were asymptomatic after a 12-week treatment program of OBVAT for CI maintained their improvements in symptoms and signs for at least 1 year after discontinuing treatment. Although the sample sizes for the home based and placebo groups were small, our data suggest that a similar outcome can be expected for children who were asymptomatic after treatment with HBPP and HBCVAT+.

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“…Thus, reduction in the number of symptoms and their intensity should be correlated with improvement in clinical signs [35] and dynamic responses [36].…”

Section: Discussionmentioning

confidence: 99%

Vergence in mild traumatic brain injury: A pilot study

Szymanowicz

Ciuffreda²,

Thiagarajan³

et al. 2012

JRRD

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Abstract-Vergence dysfunction in individuals with mild traumatic brain injury (mTBI) may have a negative effect on quality of life, functional abilities, and rehabilitative progress. In this study, we used a range of dynamic and static objective and subjective measures of vergence to assess 21 adult patients with mTBI and nearwork symptoms. The results were compared with 10 control adult subjects. With respect to dynamic parameters, responses in those with mTBI were slowed, variable, and delayed. With respect to static parameters, reduced near point of convergence and restricted near vergence ranges were found in those with mTBI. The present results provide evidence for the substantial adverse effect of mTBI on vergence function.

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Vergence Orthoptics: Validity and Persistence of the Training Effect

Cited by 21 publications

References 0 publications

Effectiveness of vision therapy for convergence dysfunctions and long‐term stability after vision therapy

Effectiveness of vision therapy for convergence dysfunctions and long‐term stability after vision therapy

Long-Term Effectiveness of Treatments for Symptomatic Convergence Insufficiency in Children

Vergence in mild traumatic brain injury: A pilot study

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