A Normative Study of Objective Measures of Disparity Vergence and Saccades in Children 9 to 17 Years Old.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
Mashael NamaehTara L Alvarez

Abstract

This study establishes normative data for objective outcome measures of vergence and saccade eye movements for the pediatric population. These data should facilitate future clinical trial design. This study was designed to establish normative data for objective measures of disparity vergence and saccades in children between the ages 9 and 17 years using an objective binocular eye movement tracking system. Participants (aged 9 to 17 years) had a vision examination including refraction, accommodative, and binocular vision testing. Eligibility criteria included 20/25 visual acuity with best correction, normal accommodation, and binocular vision. The ISCAN RK-826PCI binocular tracking system (ISCAN, Woburn, MA) was used to objectively record horizontal, symmetrical disparity vergence, and saccadic eye movements. Parameters assessed included peak velocity, time to peak velocity, latency, and response amplitude for both disparity vergence and saccades. One hundred eighteen participants were recruited (54.94% female; mean age, 13.5 years), and 77.1% (91/118) of the participants completed the assessment with usable data. A sample of the normative data included peak velocity (°/s), which had a mean ± standard deviation of 25.4 ± 2.9, 22...Continue Reading

References

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Jan 12, 2005·Archives of Ophthalmology·Mitchell ScheimanUNKNOWN Convergence Insufficiency Treatment Trial Study Group
Mar 31, 2005·Vision Research·Tara L AlvarezClaude Pedrono
Jul 27, 2005·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Mitchell ScheimanJanice Wensveen
Oct 15, 2008·Archives of Ophthalmology·UNKNOWN Convergence Insufficiency Treatment Trial Study Group
Mar 18, 2009·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Michael RouseUNKNOWN Convergence Insufficiency Treatment Trial (CITT) Investigator Group
Sep 29, 2009·Vision Research·You Yun LeeTara L Alvarez
Mar 26, 2010·Investigative Ophthalmology & Visual Science·Eun H KimTara L Alvarez
Nov 9, 2010·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Tara L AlvarezBharat B Biswal
May 12, 2012·Vision Research·Eun H Kim, Tara L Alvarez
Jul 29, 2016·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Mitchell M ScheimanTara L Alvarez
Dec 21, 2018·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Mitchell ScheimanTara L Alvarez

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Citations

Jan 5, 2021·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Mitchell M ScheimanUNKNOWN Convergence Insufficiency Treatment Trial Investigator Group

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