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Notes:
conference
series
.com
July 17-19, 2017 Chicago, USA
World Congress and Expo on
Optometry & Vision Science
Volume 2, Issue 1 (Suppl)
Optom Open Access, an open access journal
ISSN:2476-2075
World Optometry 2017
July 17-19, 2017
The long term progression of eye-movements in relationship to birth order in children
Purpose:
The purpose of this longitudinal study was to analyze eye movement data related to birth order in a group of children
upon entering Kindergarten, and then again upon entering 3rd grade. We have previously reported on a significant difference
in eye movements among the pre-Kindergarten groups of children with no siblings, first born with siblings, and children who
are not first born and have siblings. The findings have led to the theory that first born children and children with no siblings
may exhibit better saccades and fixation control prior to entering Kindergarten due to differences in the type of activities they
pursue. Once children are in school, their activities are more regulated, thus we theorized that the same children prior to
entering 3rd grade would not show a significant difference in eye movements.
Methods:
112 childrenwith similar academic/socioeconomic backgroundswere examined in the summer prior toKindergarten.
33 of the same children have been examined again upon entering 3rd grade. The children were given comprehensive exams
including tests of accommodation and vergence. The children also received eye-movement analysis with the Visagraph
protocol. The caregivers completed a survey regarding the number/ages of siblings, prior school history, and amount of time
spent on tasks like reading, using computers, and playing outdoors.
Results:
Children in the pre-Kindergarten group who were first born exhibited better fixation control with fewer off-target
drifts (F 6.09, p≤0.05) and more efficient horizontal saccades (F 5.96, p<0.05). The Bland-Altman analysis of the 3rd grade
group indicated good agreement among all groups for saccadic accuracy, saccadic speed, fluency, and fixation accuracy.
Conclusions:
The activities that first born children are encouraged to perform regularly prior to Kindergarten may lead to
better eye movement skills at that age. However, by 3rd grade, a child is using eye-movements to learn, and uses visual tracking,
saccadic sequencing and reading fluency to read at a higher level. Our data suggests that the first born group continues to have
moderately improved eye-movement performance compared with the others, but not significantly better. The children in this
study will be re-evaluated prior to 6th grade to determine if any new trends with eye movements or binocular stability develop.
Biography
Christine Allison is a Fellow of the American Academy of Optometry, a Fellow of the College of Optometrists in Vision Development (COVD), and an American Academy
of Optometry Diplomate in Binocular Vision, Perception and Pediatric Optometry, and a Distinguished Scholar and Fellow in the National Academies of Practice. She is
the Clinical Director for the Illinois Special Olympics Lions Club International Opening Eyes Program, as well as a Regional Clinical Advisor for this program. She is the
President-elect for COVD as well as the Illinois Optometric Association. She has published numerous articles, and given many presentations and lectures both nationally
and internationally.
callison@ico.eduChristine Allison
Illinois College of Optometry, USA
Christine Allison, Optom Open Access 2017, 2:1 (Suppl)
DOI: 10.4172/2476-2075-C1-001