Correlation Between Refraction and Biometric Parameters

Sun Yat-sen University

Status: Unknown

Conditions: Refractive Errors

Study type: Observational

Funder types: Other

Identifiers

NCT04346251

CCPMOH2017-China-1101

Details and patient eligibility

About

To document the refractive status of Chinese schoolchildren and evaluate the association between the degree of refraction and biometric parameters.

Full description

In this study, we will analyze the refractive status of schoolchildren and compare the ocular biometrics, including spherical equivalent refraction (SER), pupil distance (PD), corneal curvature (CC), high order aberration (HOA), and central corneal thickness (CCT) between boys and girls. Additionally, we investigate the correlation between the SER in diopters and the other biometric parameters, including PD, CC, HOA, CCT, and body mass index (BMI).

Enrollment: 1,000 estimated patients

Sex: All

Ages: 6 to 15 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Schoolchildren aged from 6 to 15 years

Exclusion criteria

• with previous histories of cataracts, keratitis, strabismus, or other visual impairments
• with history of previous eye surgery
• with unreliable auto-refraction values
• unwilling to participate