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Comparison of Deviation Types Among Astigmatic Children With Or Without Amblyopia

Associated Professor, Director of Strabismus Department

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04432181
Enrollment
62
Registered
2020-06-16
Start date
2018-09-04
Completion date
2020-02-03
Last updated
2020-06-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Amblyopia, Astigmatism of Both Eyes, Strabismus

Brief summary

the records of astigmatic children were reviewed and any deviation was investigated at near and distance. refractive errors, stereopsis, convergence insufficiency were also evaluated. children were divided into two groups according to the presence of amblyopia and ocular deviations and other parameters were compared between groups.

Detailed description

The aim of the study was to evaluate deviations in children with ≥1,75 diopter (D) astigmatism with or without amblyopia. The records of children with ≥1,75 D astigmatism were investigated. Subjects with and without amblyopia composed group 1 and 2, respectively. The mean age, gender, amount and type of deviation, presence of convergence insufficiency (CI), stereopsis, time of initial spectacle use and follow-up time, differences in best corrected visual acuity (VoD) and spherical equivalent (SE) between eyes were noted and compared between the groups. Best corrected visual acuity (BCVA), mean SE, astigmatism measurements were also noted and compared between amblyopic, fellow and non-amblyopic eyes.

Interventions

ophthalmic examination including; best corrected visual acuity, alternating prism cover test, retinoscopy, fundus examination, ocular vergence evaluation

Sponsors

Sakarya University
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
7 Years to 13 Years

Inclusion criteria

* astigmatisma ≥1,75 Diopter

Exclusion criteria

* systemic diseases additional ocular diseases neurological diseases

Design outcomes

Primary

MeasureTime frameDescription
ocular deviation24 monthocular deviation measured by alternate prism cover test, prism diopter

Secondary

MeasureTime frameDescription
convergence24 monthpresence of convergence insufficiency at 10 cm far from visual axe.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026