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International Ophthalmology

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01-06-2020 | Coma | Original Paper

Corneal topography, anterior segment and high-order aberration assessments in children with ≥ 2 diopter astigmatism

Authors: Burçin Çakır, Nilgün Özkan Aksoy, Sedat Özmen, Özlem Bursalı, Erkan Çelik, Fatih Horozoğlu

Published in: International Ophthalmology | Issue 6/2020

Abstract

Purpose

To assess topographic findings, anterior segment parameters and high-order aberrations (HOAs) by using corneal tomography in children with 2 diopters (dp) or more astigmatism.

Methods

Children with 2 dp or more astigmatism (study group) and children with astigmatism less than 1 dp (control group) were recruited. Corneal astigmatism, mean, steep, flat keratometry (K) findings, anterior and posterior K results and anterior segment parameters including anterior chamber depth, kappa distance, horizontal corneal diameter, mean, central, middle, peripheral corneal thicknesses (CT), white-to-white (WTW) distance and pupil diameter were measured by Galilei G4 Dual Scheimpflug corneal tomography. HOAs were also assessed and compared between groups.

Results

Fifty-eight eyes of 37 children in the study group and 37 eyes of 37 children in the control group were enrolled. The mean ages of groups were 9.7 ± 2.4 years and 9.3 ± 1.6 years in study and control groups, respectively. The mean astigmatism was 3.3 ± 1.1 dp and 0.5 ± 0.3 dp in study and control groups, respectively (p < 0.05). Total corneal astigmatism was 3.3 ± 0.84 dp and 1.14 ± 0.47 dp in study and control groups, respectively (p < 0.05). There was a significant difference between groups in terms of posterior steep K and posterior astigmatism values. Among anterior segment parameters, mean CT and WTW values were statistically different between groups. HOAs were found to be statistically different between groups.

Conclusion

Higher posterior corneal astigmatism, thinner mean CT and lower WTW distance were found in children with 2 dp or more astigmatism. Besides, HOAs were much more in these astigmatic children.

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Title: Corneal topography, anterior segment and high-order aberration assessments in children with ≥ 2 diopter astigmatism
Authors: Burçin Çakır
Nilgün Özkan Aksoy
Sedat Özmen
Özlem Bursalı
Erkan Çelik
Fatih Horozoğlu
Publication date: 01-06-2020
Publisher: Springer Netherlands
Keyword: Coma
Published in: International Ophthalmology / Issue 6/2020
Print ISSN: 0165-5701
Electronic ISSN: 1573-2630
DOI: https://doi.org/10.1007/s10792-020-01313-8

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Corneal topography, anterior segment and high-order aberration assessments in children with ≥ 2 diopter astigmatism

Abstract

Purpose

Methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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