The Influence of Magnification Correction on Macular Retinal/Choroidal Thickness and Vessel Density Measurements Using optical coherence tomography angiography in 4-17-year-old students.

Zengrui Zhang¹, Hao Wu¹, Yining Zeng¹, Jingyu Mu², Wei Jiang³, Yun Dai⁴, Junguo Duan⁵

¹Chengdu university of TCM, No.37 Twelve Bridge Road, Chengdu, 610075, Sichuan, China; Eye College of Chengdu University of TCM, No.37 Twelve Bridge Road, Chengdu, 610075, Sichuan, China; Ineye Hospital of Chengdu University of TCM, No. 8 Xinghui West Road, Jinniu District, Chengdu City, Sichuan Province, China; Eye Health with Traditional Chinese Medicine Key Laboratory of Sichuan Province.

²Weifang Hospital Of Traditional Chinese Medicine, No.1055 Weizhou Road, Kuiwen District, Weifang, 261000, Shandong, China.

³Chengdu university of TCM, No.37 Twelve Bridge Road, Chengdu, 610075, Sichuan, China.

⁴Chengdu university of TCM, No.37 Twelve Bridge Road, Chengdu, 610075, Sichuan, China; Ineye Hospital of Chengdu University of TCM, No. 8 Xinghui West Road, Jinniu District, Chengdu City, Sichuan Province, China. Electronic address: daiyunqq@163.com.

⁵Chengdu university of TCM, No.37 Twelve Bridge Road, Chengdu, 610075, Sichuan, China; Eye College of Chengdu University of TCM, No.37 Twelve Bridge Road, Chengdu, 610075, Sichuan, China; Ineye Hospital of Chengdu University of TCM, No. 8 Xinghui West Road, Jinniu District, Chengdu City, Sichuan Province, China; Eye Health with Traditional Chinese Medicine Key Laboratory of Sichuan Province; Key Laboratory of Sichuan Province Ophthalmopathy Prevention & Cure and Visual Function Protection with TCM, No.37 Twelve Bridge Road, Chengdu, 610075, Sichuan, China. Electronic address: zeverett636@hotmail.com.

PubMed DOI

Abstract

BACKGROUND: Transverse macular measurements from optical coherence tomography angiography (OCTA) depend on ocular magnification, which varies with axial length (AL); in growing children, whether correcting for magnification alters macular thickness and vessel-density measurements enough to matter clinically is unclear, and no anchor-based clinical threshold exists. METHODS: In this cross-sectiona…

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