Corneal eccentricity and related factors in Chinese children and adolescents with astigmatism.

ABSTRACT:

Objective

To quantify the distribution of anterior corneal eccentricity (e value) and identify associated factors in Chinese children and adolescents with astigmatism.

Methods

Corneal topography data obtained using the Medmont E300 were retrieved from 961 participants aged 3 to 18 years, with corneal astigmatism (ΔK) ≥ 2.00 D. Data analysis included anterior corneal e values along both flat and steep meridians at 1-10 mm chord lengths, as well as the device-reported mean e values for the flat and steep meridians (9.35 mm chord dimater); anterior corneal keratometry readings (flat/steep K); ΔK; and refractive error. Demographic factors, including age and sex, were also analyzed.

Results

This study included 961 right eyes (mean age: 7.9 ± 2.9 years; 56% male). The mean

SUBMITTER: Zhou L 

PROVIDER: S-EPMC12502173 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature