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The Near Point of Convergence in Patients with Vestibular Migraine [PDF]

International Archives of Otorhinolaryngology
Introduction Vestibular migraine (VM) is one of the most common vestibular disorders and its diagnosis is based entirely on clinical features. A recent case series suggested a possible link between migraines and convergence insufficiency.
Francisco Carlos Zuma e Maia, Bernardo Faria Ramos, Roseli Saraiva Moreira Bittar, Renato Valerio Rodrigues Cal, Leonel Almeida Luís, Pedro Luiz Mangabeira Albernaz   +5 more
doaj   +5 more sources

The relationship between binocular vision symptoms and near point of convergence

Indian Journal of Ophthalmology, 2013
Aim and Background: Due to the relatively high prevalence of binocular vision anomalies, a regular examination including tests for assessment and determination of these anomalies is necessary.
Momeni-Moghaddam Hamed, A Goss David, Ehsani Marzieh   +2 more
doaj   +5 more sources

Normative data for near point of convergence, accommodation, and phoria

Oman Journal of Ophthalmology, 2015
Background: Measurement of for near point of convergence (NPC), amplitude of accommodation (AA) and phoria are important components of diagnosing nonstrabismic binocular vision anomalies.
Neethu G Abraham, Krithica Srinivasan, Jyothi Thomas   +2 more
doaj   +5 more sources

The distribution of near point of convergence, near horizontal heterophoria, and near vergence among myopic children in South Korea.

Taiwan J Ophthalmol, 2016
To assess the distribution of near point of convergence (NPC), near heterophoria, and near vergence among myopic school children in South Korea.One hundred and thirty-six elementary school children, aged 8-13 years, were each given a thorough eye examination including binocular vision testing, NPC using standard push-up technique, horizontal ...
Jang JU, Park IJ, Jang JY.
europepmc   +6 more sources

IS NEAR POINT OF CONVERGENCE ASSOCIATED WITH SYMPTOM PROFILES OR RECOVERY IN ADOLESCENTS AFTER CONCUSSION? [PDF]

Orthopaedic Journal of Sports Medicine, 2021
Background: Visual impairments, including oculomotor impairments, are common following concussion. Accurate, efficient, and objective measurement of post-concussion visual impairments may help guide treatment pathways.
Gregory A. Walker MD, Julie C. Wilson MD, Corrine N. Seehusen, Aaron J. Provance MD, David R. Howell PhD   +4 more
doaj   +4 more sources

Receded near point of convergence as a predictor of mild cognitive impairment in the general geriatric population: results from a population-based study [PDF]

International Journal of Ophthalmology, 2023
AIM: To investigate the relationship between near point of convergence (NPC) and mild cognitive impairment (MCI) in the general elderly population. METHODS: The present report is a part of the Tehran Geriatric Eye Study (TGES): a population-based cross ...
Asgar Doostdar, Hassan Hashemi, Payam Nabovati, Amir Asharlous, Mehdi Khabazkhoob   +4 more
doaj   +4 more sources

Near Phoria and Near Point of Convergence Parameters in Children With Hearing and Speech Impairment: A Cross‐Sectional Study [PDF]

Health Science Reports
Background and Aims Children with hearing and speech impairment are reported to have a higher prevalence of refractive errors and amblyopia. Most studies conducted previously have not primarily concentrated on the binocular vision aspects of near vision ...
Jameel Rizwana Hussaindeen, Mariza Mavroidis, Badrinath P. Ashwin, Meenakshi S. Sruthi, Baskar Theagarayan   +4 more
doaj   +4 more sources

Utility of 1 Measurement Versus Multiple Measurements of Near Point of Convergence After Concussion. [PDF]

J Athl Train, 2020
Context Increased near point of convergence (NPC) distance is a common finding after concussion and is associated with physical symptoms and worsened neurocognitive performance. Vestibular/Ocular Motor Screening measures NPC distance across 3 trials and uses the average measurement to inform clinical care.
Ernst N, Schatz P, Trbovich AM, Emami K, Eagle SR, Mucha A, Collins MW, Kontos AP.   +7 more
europepmc   +5 more sources

Near Point of Convergence After a Sport-Related Concussion: Measurement Reliability and Relationship to Neurocognitive Impairment and Symptoms. [PDF]

Am J Sports Med, 2015
Background: Convergence insufficiency (CI) is a common binocular vision deficit after a sport-related concussion (SRC). CI may result in visual discomfort and vision-mediated functional difficulties such as slowed reading and compromised attention, leading to impaired academic, work, and sport performance.
Pearce KL, Sufrinko A, Lau BC, Henry L, Collins MW, Kontos AP.   +5 more
europepmc   +6 more sources

Incidence of Remote Near-Point of Convergence in University Athletes After Sport-Related Concussion. [PDF]

Clin J Sport Med, 2023
Objective: Near-point of convergence (NPC) testing is an attractive screening tool in the sport setting because it is rapid, requires few resources, and is easy to administer. Remote NPC has been reported after sport-related concussion (SRC), although the incidence among a university-aged population is not well defined.
Hutchison MG, Di Battista AP, Pyndiura K, Blanc S, Quaid PT, Richards D.   +5 more
europepmc   +4 more sources