Relationship Between Peripheral Refraction in Different Retinal Regions and Myopia Development of Young Chinese People

ObjectiveTo observe the associations between regional peripheral refraction and myopia development in young Chinese people. MethodsTwo hundred and forty-one young adult subjects (21 emmetropes, 88 low myopes, 94 moderate myopes, and 38 high myopes) aged 18-28 years were included, and only the right eyes were tested. Eye biometrics were measured before pupil dilation using the Lenstar. Relative peripheral refractive errors (RPRE) were measured after pupil dilation using multispectral refractive topography (MRT), at nine retinal eccentricities: 0-5, 5-10, 10-15, 15-20, 20-25, 25-30, 30-35, 35-40, and 40-45 degrees. ResultsIn this study, RPRE increased with eccentricity, and it shows a growing trend with the increase of the degree of myopia among emmetropia, low myopia and moderate myopia groups, and RPRE varied with myopia severity at eccentricities between 20 and 35 degrees only. In addition, axial length (AL) and RPRE were positively correlated between 20 and 45 degrees, and AL was an independent risk factor for RPRE between 20 and 35 degrees. ConclusionThese findings indicate that the eccentricities between 20 and 35 degrees RPRE may be closely related to refractive development and eye growth in young Chinese people.

Automated summary

This study observed the association between regional peripheral refraction and myopia development in young Chinese individuals. Findings show that peripheral refraction error increased with eccentricity, and it varied significantly with myopia severity between 20 and 35 degrees of eccentricity. Additionally, axial length was positively correlated with peripheral refraction error.