眼科 ›› 2025, Vol. 34 ›› Issue (3): 207-212.doi: 10.13281/j.cnki.issn.1004-4469.2024.03.006

• 论著 • 上一篇    下一篇

原发性可疑房角关闭者黄斑中心凹无血管区的特征

宋丽琴1   李彩霞2   王思鉴3   邵显4   魏宏宇4   王燚3  王泽华3   李梦洋3   李树宁3   

  1. 1大理大学临床医学院,云南大理 671000;2西安市人民医院  西安市第四医院  陕西省眼科医院,西安710004; 3首都医科大学附属北京同仁医院  北京同仁眼科中心  眼科学与视觉科学北京市重点实验室,北京 100730; 4昆明医科大学第一附属医院,昆明650500
  • 收稿日期:2024-09-26 出版日期:2025-05-25 发布日期:2025-05-25
  • 通讯作者: 李树宁,Email:lishuningqd@163.com
  • 基金资助:
    首都卫生发展科研专项(2022-1-2052)

Characteristics of the foveal avascular zone in the primary angle-closure suspect population

Song Liqin1, Li Caixia2, Wang Sijian3, Shao Xian4, Wei Hongyu4, Wang Yi3, Wang Zehua3, Li Mengyang3, Li Shuning3   

  1. 1 Clinical Medical College, Dali University, Dali Yunnan 671000, China; 2 Xi'an People's Hospital, Xi'an Fourth Hospital, Shaanxi Ophthalmology Hospital, Xi'an 710004, China; 3 Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Key Laboratory of Ophthalmology and Visual Science, Beijing 100730, China; 4 The First Affiliated Hospital of Kunming Medical University, Kunming 650500, China
  • Received:2024-09-26 Online:2025-05-25 Published:2025-05-25
  • Contact: Li Shuning, Email: lishuningqd@163.com
  • Supported by:
    Capital Health Development Research Special Fund (2022-1-2052)

摘要: 目的 观察原发性可疑房角关闭(primary angle-closure suspect,PACS)者黄斑中心凹无血管区(foveal avascular zone,FAZ)参数的特征。设计 横断面研究。研究对象153例PACS和153例年龄、性别匹配的非原发性可疑房角关闭(non-PACS,NPACS)者。方法 采用OCTA测量受试者的FAZ相关黄斑区血流密度参数,行身高、体重、糖化血红蛋白、血压、视力、眼压、裂隙灯、生物测量、房角镜检查。FAZ的评价指标包括FAZ面积、FAZ周长、非圆指数(acircularity index,AI)(FAZ周长与软件提供的等面积时标准圆周长的比值)以及围绕FAZ的300 μm宽度双环的血流密度(foveal density 300,FD300)。主要指标 FD300、FAZ面积、AI。 结果 PACS和NPACS的FD300中位数(四分位数)分别为52.32%(49.82%,55.12%)和55.53%(53.95%,57.32%)(Z= -7.344,P<0.001),FAZ面积分别为(0.320±0.106)mm2和(0.343±0.097)mm2(t=2.012,P=0.045),AI中位数(四分位数)分别为1.10(1.08,1.12)和1.09(1.08,1.11)(Z=-2.574,P=0.01)。糖化血红蛋白(glycated hemoglobin,HbA1c)<6.5时PACS人群的FAZ周长和面积、FD300显著低于NPACS组,HbA1c≥6.5时,PACS者比NPACS者的AI更大、FD300更低。多因素分析显示,更低FD300[OR=0.773(95%CI: 0.705,0.846)]、更高的HbA1c[OR=1.250(95%CI: 1.001,1.562)]和更高的舒张压[OR=1.034(95%CI: 1.007,1.063)]是PACS的易感因素。 结论 PACS者较NPACS者FAZ周长和面积更小、AI更大、FD300更低。HbA1c异常对PACS者的FAZ参数影响更大。 (眼科,2025,34: 207-212)

关键词: 原发性可疑房角关闭, 中心凹无血管区

Abstract:  Objective  To observe characteristics of the foveal avascular zone (FAZ) in the primary angle-closure suspect (PACS) population. Design Cross-sectional study. Participants A total of 153 PACS and 153 age- and sex-matched non-primary angle-closure suspects (non-PACS, NPACS) subjects. Methods The study utilized OCTA to measure the FAZ-related macular vessel density parameters in the subjects. Comprehensive assessments included height, weight, glycated hemoglobin levels, blood pressure, visual acuity, intraocular pressure, slit-lamp examination, biometry, and gonioscopy. Evaluation metrics for FAZ included FAZ area, FAZ perimeter, acircularity index (AI) (the ratio of the FAZ perimeter to the standard circular perimeter for the same area provided by the software), and the foveal density (FD300) within a 300 μm wide annulus surrounding the FAZ. Main Outcome Meseaures  FD300, FAZ area, and AI. Results The median (interquartile range) of FD 300 for PACS and NPACS were 52.32% (49.82%, 55.12%) and 55.53% (53.95%, 57.32%), respectively (Z=-7.344, P<0.001). The FAZ areas was (0.320±0.106) mm2 for PACS and (0.343±0.097) mm2 for NPACS (t=2.012, P=0.045). The median (interquartile range) of AI was 1.10 (1.08, 1.12) for PACS and 1.09 (1.08, 1.11) for NPACS (Z=-2.574, P=0.01). In the PACS population with glycated hemoglobin (HbA1c) <6.5%, FAZ perimeter, FAZ area, and FD300 were significantly lower compared to the NPACS group. When HbA1c ≥6.5%, the PACS group exhibited greater AI and lower FD300 than the NPACS group. Multivariate analysis revealed that lower FD300 [OR=0.773 (95% CI: 0.705, 0.846)], higher HbA1c [OR=1.250 (95%  CI: 1.001, 1.562)], and higher diastolic blood pressure [OR=1.034 (95%  CI: 1.007, 1.063)] were risk factors for PACS. Conclusion Compared to NPACS individuals, the PACS population demonstrated smaller FAZ perimeter and area, greater AI, and lower FD300. Abnormal HbA1c had a more pronounced effect on FAZ parameters in the PACS group. (Ophthalmol CHN, 2025, 34: 207-212)

Key words:  primary angle closure suspects, foveal avascular zone