Association of Optic Nerve Head Metrics and Parapapillary Gamma Zone With Myopia Onset and Progression in Children: The Hong Kong Children Eye Study.

ABSTRACT:

Purpose

The purpose of this study was to evaluate the associations of optic nerve head (ONH) metrics and parapapillary gamma zone with myopia onset and progression in school children aged 6 to 8 years over a 3-year period.

Methods

The ONH was imaged by spectral domain-optical coherence tomography (SD-OCT) using an adopted scan protocol comprising 24 equally spaced radial B-scans.

Results

The study included 765 children (mean age = 7.69 ± 1.01 years, range = 6-8 years, refractive error = 0.33 ± 1.30 diopters [D] at baseline). Significant differences were found in disc ovality index, gamma zone area, Bruch's membrane opening distance (BMOD), temporal border tissue angle (BTA), and optic disc-fovea distance (DFD) across different refractive status groups (all P < 0.001).

SUBMITTER: Zhang XJ 

PROVIDER: S-EPMC12320900 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature