Evidence map›Paper›PMID 24100480›Full record

ArticleOptometry and vision science : official publication of the American Academy of Optometry2013

Astigmatism and myopia in Tohono O'odham Native American children.

J Daniel Twelker, Joseph M Miller, Duane L Sherrill, Erin M Harvey

Open access · greenAbstract read
In one paragraph

Article in Optometry and vision science : official publication of the American Academy of Optometry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.8field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Effect of Three Types of Specially-Designed Myopia Control Spectacle Lenses on Astigmatism: A Two-Year Result.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Article
  3. Article
  4. The role of astigmatism in myopia development, myopia progression and myopia control.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
    Review
  5. Observational
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  13. Longitudinal change in components of astigmatism and its association with axial length-corneal radius ratio in Chinese young children: the Nanjing Eye Study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022
    Article
  14. Article
  15. Astigmatic Defocus Leads to Short-Term Changes in Human Choroidal Thickness.Investigative ophthalmology & visual science · 2020
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

J Daniel Twelker*OD, PhD, FAAO †MD, MPH ‡PhD Department of Ophthalmology and Vision Science (JDT, JMM, EMH), Mel and Enid Zuckerman College of Public Health (JDT, JMM, DLS, EMH), and the College of Optical Sciences (JMM), The University of Arizona, Tucson, Arizona.
Joseph M Miller
Duane L Sherrill
Erin M Harvey
Cancer Research And Biostatistics · US

Funding

MYOPIA DEVELOPMENT IN CHILDRENU10EY008893 · NEI · OHIO STATE UNIVERSITY · PI ZADNIK, KARLA · 1996 to 2010
$19.6M
AMBLYOPIA IN ASTIGMATIC CHILDREN-DEVELOPMENT &TREATMENTU10EY013153 · NEI · UNIVERSITY OF ARIZONA · PI HARVEY, ERIN M · 2000 to 2014
$9.7M
NEI NIH HHS L30 EY015090NEI NIH HHS U10 EY008893NEI NIH HHS U10 EY013153NEI NIH HHS U10-EY08893NEI NIH HHS U10-EY13153
6 · The paper itself

Abstract

purposeTo describe change in spherical equivalent (M) in a longitudinal sample of Tohono O'odham students ages 3 to 18 years and to test the hypothesis that astigmatism creates complex cues to emmetropization, resulting in increased change in M in the direction of increasing myopia and increased occurrence of myopia.

methodsSubjects were 777 Tohono O'odham Native American children on whom cycloplegic right eye autorefraction was measured on at least two study encounters between ages 3 and 18 years (first encounter prior to age 5.5 years, final encounter ≥3 years later). Regression lines were fit to individual subjects' longitudinal M data to estimate rate of change in M (regression slope, D/yr). Regression was also used to predict if a subject would be myopic (≤-0.75 D M) by age 18 years. Analysis of covariance was used to assess the relation between M slope and magnitude of baseline M and astigmatism. Chi-square analyses were used to assess the relation between predicted myopia onset and magnitude of baseline M and astigmatism.

resultsMean M slope was significantly more negative for hyperopes (M ≥ +2.00) than for myopes (M ≤ -0.75) or for subjects neither hyperopic nor myopic (NHM, M > -0.75 and < +2.00), but there was no significant difference between the myopic and NHM groups. Chi-square analysis indicated that final myopia status varied across level of baseline astigmatism. Subjects with high astigmatism were more likely to be predicted to have significant myopia by age 18 years.

conclusionsThe association between greater shift in M towards myopia with age in subjects who were hyperopic at baseline is consistent with continued emmetropization in the school years. Results regarding predicted myopia development imply that degradation of image quality due to refractive astigmatism creates complex cues to emmetropization, resulting in increased occurrence of myopia.

Indexed as

Indians, North AmericanAdolescentArizonaAstigmatismChildChild, PreschoolCuesEmmetropiaFemaleHumansLongitudinal StudiesMaleMydriaticsMyopiaPupilRefraction, OcularMydriatics

Identifiers

PMID24100480
PMCPMC4068822
OpenAlexW2031738719

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.