Evidence map›Paper›PMID 27464574›Full record

ArticleOptometry and vision science : official publication of the American Academy of Optometry2017

Objective Assessment of Vergence after Treatment of Concussion-Related CI: A Pilot Study.

Mitchell M Scheiman, Henry Talasan, G Lynn Mitchell, Tara L Alvarez

Open access · greenAbstract read
In one paragraph

Article in Optometry and vision science : official publication of the American Academy of Optometry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.

  1. Interventions for convergence insufficiency: a network meta-analysis.The Cochrane database of systematic reviews · 2020
    Pooled it
  2. Trial
  3. Objective evaluation of fusional vergence after a vision therapy protocol in typical binocular vision.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
    Trial
  4. Trial
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  9. Scoping review: Intervention for ocular motor disorders in children and adults with mild traumatic brain injury.Optometry and vision science : official publication of the American Academy of Optometry · 2025
    Article
  10. Article
  11. Article
  12. Article
  13. Accommodative and Vergence Responses to a Moving Stimulus in Concussion.Investigative ophthalmology & visual science · 2024
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Mitchell M Scheiman*OD, PhD, FAAO †MS ‡MAS, FAAO §PhD Pennsylvania College of Optometry at Salus University, Elkins Park, Pennsylvania (MS); Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey (HT, TA); and The Ohio State University, College of Optometry, Columbus, Ohio (GLM).
Henry Talasan
G Lynn Mitchell
Tara L Alvarez
New Jersey Institute of Technology · USSalus University · USThe Ohio State University · US

Funding

Functional Mechanisms of Neural Control in Convergence InsufficiencyR01EY023261 · NEI · NEW JERSEY INSTITUTE OF TECHNOLOGY · PI ALVAREZ, TARA LYNN · 2014 to 2025
$4.9M
NEI NIH HHS R01 EY023261
6 · The paper itself

Abstract

purposeTo evaluate changes in objective measures of disparity vergence after office-based vision therapy (OBVT) for concussion-related convergence insufficiency (CI) and determine the feasibility of using this objective assessment as an outcome measure in a clinical trial.

methodsThis was a prospective, observational trial. All participants were treated with weekly OBVT with home reinforcement. Participants included two adolescents and three young adults with concussion-related, symptomatic CI. The primary outcome measure was average peak velocity for 4° symmetrical convergence steps. Other objective outcome measures of disparity vergence included time to peak velocity, latency, accuracy, settling time, and main sequence. We also evaluated saccadic eye movements using the same outcome measures. Changes in clinical measures (near point of convergence, positive fusional vergence at near, Convergence Insufficiency Symptom Survey [CISS] score) were evaluated.

resultsThere were statistically significant and clinically meaningful changes in all clinical measures for convergence. Four of the five subjects met clinical success criteria. For the objective measures, we found a statistically significant increase in peak velocity, response accuracy to 4° symmetrical convergence and divergence step stimuli, and the main sequence ratio for convergence step stimuli. Objective saccadic eye movements (5 and 10°) appeared normal pre-OBVT and did not show any significant change after treatment.

conclusionsThis is the first report of the use of objective measures of disparity vergence as outcome measures for concussion-related convergence insufficiency. These measures provide additional information that is not accessible with clinical tests about underlying physiological mechanisms leading to changes in clinical findings and symptoms. The study results also demonstrate that patients with concussion can tolerate the visual demands (over 200 vergence and versional eye movements) during the 25-minute testing time and suggest that these measures could be used in a large-scale randomized clinical trial of concussion-related CI as outcome measures.

Indexed as

AdolescentAdultBrain ConcussionConvergence, OcularFemaleHumansMaleOcular Motility DisordersOrthopticsPilot ProjectsProspective StudiesSaccadesSurveys and QuestionnairesVision DisparityYoung Adult

Identifiers

PMID27464574
PMCPMC5182092
OpenAlexW2491808619

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.