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01-08-2017 | Original Paper

Topographic determination of corneal asphericity as a function of age, gender, and refractive error

Authors: Negareh Yazdani, Leila Shahkarami, Hadi OstadiMoghaddam, Asieh Ehsaei

Published in: International Ophthalmology | Issue 4/2017

Abstract

The aim of the study is to evaluate corneal asphericity in three diameters of 5, 6, and 7 mm, and to assess the effect of age, refractive error, and gender on asphericity. The study included 500 healthy subjects with a mean ± SD age of 29.51 ± 11.53 years. All analyses were based on the right eyes of the patients. Topographic data were analyzed using Oculus Keratograph 4. Mean ± SD corneal asphericity values of the study population in 5, 6, and 7 mm diameters were −0.21 ± 0.11, −0.24 ± 0.10, and −0.27 ± 0.11, respectively. The anterior corneal surface asphericity showed no correlation with either age, gender, or refractive error. The corneal asphericity shows a tendency for an increase with diameter and asphericity does not have a significant correlation with any factors of age, gender, and refractive error.

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Title: Topographic determination of corneal asphericity as a function of age, gender, and refractive error
Authors: Negareh Yazdani
Leila Shahkarami
Hadi OstadiMoghaddam
Asieh Ehsaei
Publication date: 01-08-2017
Publisher: Springer Netherlands
Published in: International Ophthalmology / Issue 4/2017
Print ISSN: 0165-5701
Electronic ISSN: 1573-2630
DOI: https://doi.org/10.1007/s10792-016-0334-0

At a glance: The STEP trials

Springer Medicine

Topographic determination of corneal asphericity as a function of age, gender, and refractive error

Abstract

At a glance: The STEP trials

Springer Medicine

Abstract

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