The biometric parameters of aniso-astigmatism and its risk factor in Chinese preschool children: the Nanjing eye study.

ABSTRACT:

Backgrounds

Aniso-astigmatism may hinder normal visual development in preschool children. Knowing its prevalence, biometric parameters and risk factors is fundamental to children eye care. The purpose of this study was to determine the biometric components of aniso-astigmatism and associated maternal risk factors in Chinese preschool children.

Methods

In the population-based, prospective cohort Nanjing Eye Study, children were measured for noncycloplegic refractive error using an autorefractor and for biometric parameters using an optical low-coherent reflectometry. The difference of total astigmatism (TA) between both eyes was calculated using cylinder power (non-vectorial aniso-TA was defined as ≥1.00 Dioptre Cylinder [DC] between both eyes) and by vector analysis (vectori

SUBMITTER: Tong H 

PROVIDER: S-EPMC7860027 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature