Effect of Developmental Binocular Vision Abnormalities on Visual Vertigo Symptoms and Treatment Outcome

Pavlou, Marousa; Acheson, James; Nicolaou, D. Colette; Fraser, Clare L.; Bronstein, Adolfo M.; Davies, Rosalyn

doi:10.1097/npt.0000000000000105

Cited by 21 publications

(10 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…No relationship was noted between the presence of a binocular visual abnormality and PVID scores. This finding is in agreement with adult data showing no difference in baseline ViD scores between persons with a vestibular disorder with and without binocular vision abnormalities ( 50 ). This does not exclude though a potential contribution of the visual system to the presence of these symptoms, although the term ViD specifically refers to the environmental triggers of these symptoms.…”

Section: Discussionsupporting

confidence: 93%

Visually Induced Dizziness in Children and Validation of the Pediatric Visually Induced Dizziness Questionnaire

et al. 2017

Self Cite

View full text Add to dashboard Cite

AimsTo develop and validate the Pediatric Visually Induced Dizziness Questionnaire (PVID) and quantify the presence and severity of visually induced dizziness (ViD), i.e., symptoms induced by visual motion stimuli including crowds and scrolling computer screens in children.Methods169 healthy (female n = 89; recruited from mainstream schools, London, UK) and 114 children with a primary migraine, concussion, or vestibular disorder diagnosis (female n = 62), aged 6–17 years, were included. Children with primary migraine were recruited from mainstream schools while children with concussion or vestibular disorder were recruited from tertiary balance centers in London, UK, and Pittsburgh, PA, USA. Children completed the PVID, which assesses the frequency of dizziness and unsteadiness experienced in specific environmental situations, and Strength and Difficulties Questionnaire (SDQ), a brief behavioral screening instrument.ResultsThe PVID showed high internal consistency (11 items; α = 0.90). A significant between-group difference was noted with higher (i.e., worse) PVID scores for patients vs. healthy participants (U = 2,436.5, z = −10.719, p < 0.001); a significant difference was noted between individual patient groups [χ2(2) = 11.014, p = 0.004] but post hoc analysis showed no significant pairwise comparisons. The optimal cut-off score for discriminating between individuals with and without abnormal ViD levels was 0.45 out of 3 (sensitivity 83%, specificity 75%). Self-rated emotional (U = 2,730.0, z = −6.169) and hyperactivity (U = 3,445.0, z = −4.506) SDQ subscale as well as informant (U = 188.5, z = −3.916) and self-rated (U = 3,178.5, z = −5.083) total scores were significantly worse for patients compared to healthy participants (p < 0.001).ConclusionViD is common in children with a primary concussion, migraine, or vestibular diagnosis. The PVID is a valid measure for identifying the presence of ViD in children and should be used to identify and quantify these symptoms, which require specific management incorporating exposure to optokinetic stimuli.

show abstract

Section: Discussionsupporting

confidence: 93%

Visually Induced Dizziness in Children and Validation of the Pediatric Visually Induced Dizziness Questionnaire

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…60 Childhood strabismus may be a negative predictive factor related to recovery in patients with vestibular disorders. 61 There are no data in the literature on the effect of congenital blindness or congenital nystagmus on rehabilitation outcomes.…”

Section: Congenital Disordersmentioning

confidence: 99%

“…71 Binocular vision abnormalities have been related to visual vertigo symptoms and appear to be related to refractory symptoms in patients with vestibular disorders. 61 Stair climbing has been analyzed in older patients with multifocal lenses. 72 There was no difference in stair climbing clearance or descent in either group; however, the sample was small.…”

Section: Acquired Visual Disordersmentioning

confidence: 99%

Vestibular Rehabilitation and Factors That Can Affect Outcome

2019

View full text Add to dashboard Cite

This review will discuss the developmental, environmental, medical, psychological, visual, and other sensory-related factors that affect recovery after vestibular dysfunction. A general overview of the evidence for vestibular rehabilitation for patients with peripheral and central vestibular disorders is provided. Recent findings suggest that age, physical activity, certain congenital disorders, length of symptoms, musculoskeletal, visual and neuromuscular comorbidities, cognition, sleep, and medications are all factors that influence the effectiveness and outcome of vestibular rehabilitation. Psychological factors that also affect outcome include anxiety, depression, fear of movement, and fear of falling. Recovery in patients with vestibular disorders may be enhanced if the practitioner recognizes and attempts to remediate modifiable factors.

show abstract

“…Pre-existing binocular vision abnormality may be a potential risk factor for partial resolution of symptoms following vestibular rehabilitation. 15,20 Following a concussion, individuals have varying symptoms. The individuals' symptoms may be clustered into categories-vestibular, oculomotor, cognitive, post-traumatic migraine, cervical, and anxiety/ mood.…”

Section: Discussionmentioning

confidence: 99%

“…The ability of physical therapists (PTs) to accurately identify and reliably measure phoria/tropia is critical in the differential diagnosis of individuals with AVS, 6 rehabilitation of uncompensated unilateral peripheral vestibular dysfunction, 15 and management of concussion/mild traumatic brain injury. 16 The purpose of this study is to determine if PTs may reliably measure phoria in short sitting and recumbent supine and to determine the reliability of two dissociating tests of phoria, the prism neutralized Maddox rod test and modified Thorington method, in normal adults with artificially created phoria.…”

Section: Introductionmentioning

confidence: 99%

Reliability of two dissociating tests of phoria in artificially created phoria in normal adults

Helminski

Keller

Suckow

et al. 2021

Laryngoscope Investig Oto

View full text Add to dashboard Cite

Background: The ability of physical therapists (PTs) to accurately identify and reliably measure phoria/tropia is critical in the differential diagnosis of individuals with acute vestibular syndrome and concussion/mild traumatic brain injury.Objectives: To determine if PTs may reliably measure phoria and to determine the reliability of two dissociating tests of phoria, the prism neutralized Maddox rod test and modified Thorington method, in normal adults with artificially created phoria.Methods: Thirty adults (mean age 24.87 ± 4.74 years) were randomly assigned to wear trial lenses (1, 2, 4, or 6 pd prism left, plain glass right) to create phoria. In sitting and supine, phoria was measured using prism neutralized Maddox rod test and modified Thorington method. Mean, SD, and range of first neutral endpoint were calculated for each examiner. Percentage of trials in agreement (≤ 2 and 4 pd); comparisons within the linear mixed effects regression model; and inter-rater reliability between examiners was calculated with the intra-class correlation coefficient (ICC).Results: Participants underwent 20 measurements by each examiner. Trial agreement between examiners was 74% (range 13%-100%) in horizontal and 91% (range 63%-100%) in vertical plane. Maddox rod test had significantly different means between two examiners (P < .05). Modified Thorington test had no significant difference. The Maddox rod test had a significant examiner main effect, examiner 2 always scored lower. Inter-rater correlation coefficient for each test was significant at level of P < .01 (ICC ≥ 0.67 ≤ 0.94) except for modified Thorington test in supine, horizontal plane with P < .05 (ICC ≥ 0.38). Conclusion:PTs may reliably measure artificially created phorias using prism neutralized Maddox rod test and modified Thorington method.

show abstract

Effect of Developmental Binocular Vision Abnormalities on Visual Vertigo Symptoms and Treatment Outcome

Cited by 21 publications

References 70 publications

Visually Induced Dizziness in Children and Validation of the Pediatric Visually Induced Dizziness Questionnaire

Visually Induced Dizziness in Children and Validation of the Pediatric Visually Induced Dizziness Questionnaire

Vestibular Rehabilitation and Factors That Can Affect Outcome

Reliability of two dissociating tests of phoria in artificially created phoria in normal adults

Contact Info

Product

Resources

About