State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.
https://orcid.org/0000-0003-3319-4051.
Invest Ophthalmol Vis Sci. 2024 Feb 1;65(2):21. doi: 10.1167/iovs.65.2.21.
The purpose of this study was to investigate the incidence and characteristics of posterior vortex veins (PVVs) in healthy eyes and explore their relationship with age and refractive status.
This retrospective cross-sectional analysis encompassed 510 eyes from 255 consecutive healthy participants. Wide-field optical coherence tomography angiography (WF-OCTA) imaging was used to assess the presence of PVVs. Eyes were classified according to refractive status (emmetropia, low and moderate myopia, and high myopia) and age (minors and adults). The incidence and characteristics of eyes with PVVs were analyzed.
Participants (mean age = 30.60 ± 21.12 years, 47.4% men) showed a mean refractive error of -2.83 ± 3.10 diopters (D; range = -12.00 to +0.75). PVVs were observed in 16.1% (82/510) of eyes. Of these, 39% (32/82) had PVVs in one eye and 61% (50/82) in both eyes. The mean number of PVVs per eye was 1.65 ± 1.05 (range = 1-6). PVVs are mainly around the optic disc (78%, 64/82) of eyes with PVVs and less in the macular area (6.1%, 5/82) or elsewhere (15.9%, 13/82). PVV incidence correlated with refractive status: 10.3% (22/213) in emmetropia, 16.6% (31/187) in low and moderate myopia, and 26.4% (29/110) in high myopia (P = 0.001), but not with age. Refractive status was the key predictor of PVV occurrence (odds ratio [OR] = 1.45, 95% confidence interval [CI] = 1.02-2.06, P = 0.038).
This study confirms PVVs' presence in healthy eyes, highlighting their inherent existence and susceptibility to alterations due to refractive conditions. These findings enhance our understanding of the vortex vein system and its distribution within the eyes.
本研究旨在探讨健康眼中后涡静脉（PVV）的发生率和特征，并探讨其与年龄和屈光状态的关系。
本回顾性横断面分析纳入了 255 名连续健康参与者的 510 只眼。采用广角光相干断层扫描血管造影术（WF-OCTA）评估 PVV 的存在。根据屈光状态（正视、低度和中度近视、高度近视）和年龄（未成年人和成年人）对眼睛进行分类。分析了具有 PVV 的眼睛的发生率和特征。
参与者（平均年龄=30.60±21.12 岁，47.4%为男性）的平均屈光度为-2.83±3.10 屈光度（D；范围为-12.00 至+0.75）。在 510 只眼中，有 16.1%（82/510）的眼睛存在 PVV。其中，39%（32/82）的眼睛单眼存在 PVV，61%（50/82）的眼睛双眼存在 PVV。每只眼的平均 PVV 数量为 1.65±1.05（范围为 1-6）。PVV 主要位于视盘周围（78%，64/82），在黄斑区（6.1%，5/82）或其他部位（15.9%，13/82）较少见。PVV 发生率与屈光状态相关：正视眼为 10.3%（22/213），低度和中度近视为 16.6%（31/187），高度近视为 26.4%（29/110）（P=0.001），但与年龄无关。屈光状态是 PVV 发生的关键预测因素（优势比[OR]=1.45，95%置信区间[CI]为 1.02-2.06，P=0.038）。
本研究证实了健康眼中 PVV 的存在，强调了它们的固有存在性和对屈光状态变化的敏感性。这些发现增强了我们对涡静脉系统及其在眼睛内分布的理解。
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