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Macular thickness and its associated factors in a Chinese rural adult population: the Handan Eye Study

医学 光学相干层析成像 眼科 人口 视网膜 环境卫生
作者
Jian Wu,Caixia Lin,Yifan Du,Su Jie Fan,Lijie Pan,Qing Pan,Kai Cao,Ningli Wang
出处
期刊:British Journal of Ophthalmology [BMJ]
卷期号:: bjophthalmol-321766
标识
DOI:10.1136/bjo-2022-321766
摘要

To describe the normal macular thickness and assess its associations.The Handan Eye Follow-up Study was conducted between 2012 and 2013. Macular thickness was scanned by spectral-domain optical coherence tomography (OCT). The built-in software generated a retinal thickness (RT) map, which was divided into three regions (central, internal and external regions) and nine quadrants (one in central and four in internal and external regions each).For 5394 subjects in the Handan Eye Follow-up Study, 4793 received OCT examination, 2946 of whom (accounting for 61.46% of the total subjects, mean age 58.91±10.95, 55.6% were women) were included for analysis. The mean RT in central macula, inner and outer rings were (237.38 µm±23.05 µm), (309.77 µm±18.36 µm) and (278.29 µm±14.38 µm), respectively (overall difference, p<0.001). In inner ring, the RT in temporal was thinnest, followed by nasal, superior and inferior. In outer ring, the RT in superior was thinnest, with the next subfields being temporal, inferior and nasal, respectively. The RT in central macula, inner and outer rings were significantly thicker in men than in women. Multivariate linear regression analysis showed that in central macula, RT increased in subjects younger than 60 years and thinned above the age of 60. In inner and outer rings, RT thinned along with age (p<0.001).This study finds that RT in central macula is the thinnest, followed by the outer ring, the RT in the inner ring is the thickest. Age and gender are related to RT. These associated factors need to be considered when explaining RT.
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