Sabermoghaddam Aliakbar, Golestani Shahin, Hassanpour Kiana, Bakhtiari Elham
Khatam-Al-Anbia Hospital, Khatam Al Anbia Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
J Curr Ophthalmol. 2021 Jul 5;33(2):124-127. doi: 10.4103/JOCO.JOCO_131_20. eCollection 2021 Apr-Jun.
To evaluate the dimensions of lower punctum in a sample of Iranian normal population using spectral domain anterior segment optical coherence tomography (OCT).
In this cross-sectional study, 102 eyes of 102 healthy volunteers were enrolled. All participants underwent a detailed history and complete ophthalmic examination. Lower punctum metrics were measured using OCT (Spectralis, Heidelberg) with the anterior segment module. External punctal diameter was defined as the largest diameter at the surface of the punctum. Internal punctal diameter was measured at two different depths of 100 μm and 500 μm from the external surface. Measurements were repeated for 30% of data by another grader. The agreement was measured using intraclass correlation coefficient (ICC).
The mean age of the participants was 61.5 ± 7.9 years. The mean external punctal diameter was 425.6 ± 124.3 μm. The mean internal punctal diameter at 100 μm and 500 μm was 183 ± 97.5 μm and 77.7 ± 51.4 μm, respectively. The agreement between the graders was high in assessing all punctal characteristics (ICC >0.9 for all measurements).
The spectral domain OCT can be used for measuring lower punctum diameter with acceptable reproducibility.
使用光谱域眼前节光学相干断层扫描（OCT）评估伊朗正常人群样本中下泪小点的尺寸。
在这项横断面研究中，纳入了102名健康志愿者的102只眼睛。所有参与者都接受了详细的病史询问和全面的眼科检查。使用带有眼前节模块的OCT（Spectralis，海德堡）测量下泪小点指标。外部泪小点直径定义为泪小点表面的最大直径。内部泪小点直径在距外表面100μm和500μm的两个不同深度处测量。另一位评分者对30%的数据进行了重复测量。使用组内相关系数（ICC）来衡量一致性。
参与者的平均年龄为61.5±7.9岁。平均外部泪小点直径为425.6±124.3μm。在100μm和500μm处的平均内部泪小点直径分别为183±97.5μm和77.7±51.4μm。评分者之间在评估所有泪小点特征方面的一致性很高（所有测量的ICC>0.9）。
光谱域OCT可用于测量下泪小点直径，具有可接受的重复性。
