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2012 ; 130
(10
): 1274-9
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New cases of myopia in children
#MMPMID22688326
Kleinstein RN
; Sinnott LT
; Jones-Jordan LA
; Sims J
; Zadnik K
Arch Ophthalmol
2012[Oct]; 130
(10
): 1274-9
PMID22688326
show ga
OBJECTIVE: To report the percentage of new cases of myopia in 4927 children aged
5 to 16 years who participated in the Collaborative Longitudinal Evaluation of
Ethnicity and Refractive Error Study between 1989 and 2009. DESIGN: A
multicenter, longitudinal, observational, volunteer study of refractive error and
ocular development in children from 5 racial/ethnic groups in which the
participants were children who were not myopic (right eye cycloplegic auto
refraction of less myopia/more hyperopia than -0.75 diopters [D] in both
principal meridians) at study entry. A new case was a diagnosis of myopia (right
eye cycloplegic auto refraction of -0.75 D or more myopia in both principal
meridians) after study entry. RESULTS: Of the 4556 children entering the study
who were not myopic, 749 (16.4%) received a diagnosis of myopia after study
entry. Among these 749 children, the ages of the participants at diagnosis varied
from 7 to 16 years, with the largest number diagnosed at age 11 years(136
participants [18.2%]). New cases of myopia occurred in 27.3% of Asians, 21.4% of
Hispanics, 14.5% of Native Americans, 13.9% of African Americans, and 11% of
whites. Female participants had more new cases than did male participants (18.5%
vs 14.5%). Normal-birth weight children had more new cases than did low-birth
weight children (16.9% vs 15.5%). CONCLUSIONS: Sixteen percent of children
enrolled in the Collaborative Longitudinal Evaluation of Ethnicity and Refractive
Error Study developed myopia during their school-aged years. The percentage
increased yearly until age 11 years, after which it decreased. New cases of
myopia varied by ethnic/racial group.
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