Chong Gabriel T, Wen Joanne C, Su Daniel Hsien-Wen, Stinnett Sandra, Asrani Sanjay
*Department of Ophthalmology, Duke University Eye Center, Durham, NC †Singapore National Eye Centre, Singapore, Singapore.
J Glaucoma. 2016 Feb;25(2):140-4. doi: 10.1097/IJG.0000000000000130.
The purpose of this study was to compare the ocular biometrics between myopic patients with and without narrow angles.
Patients with a stable myopic refraction (myopia worse than -1.00 D spherical equivalent) were prospectively recruited. Angle status was assessed using gonioscopy and biometric measurements were performed using an anterior segment optical coherence tomography and an IOLMaster.
A total of 29 patients (58 eyes) were enrolled with 13 patients (26 eyes) classified as having narrow angles and 16 patients (32 eyes) classified as having open angles. Baseline demographics of age, sex, and ethnicity did not differ significantly between the 2 groups. The patients with narrow angles were on average older than those with open angles but the difference did not reach statistical significance (P=0.12). The central anterior chamber depth was significantly less in the eyes with narrow angles (P=0.05). However, the average lens thickness, although greater in the eyes with narrow angles, did not reach statistical significance (P=0.10). Refractive error, axial lengths, and iris thicknesses did not differ significantly between the 2 groups (P=0.32, 0.47, 0.15).
Narrow angles can occur in myopic eyes. Routine gonioscopy is therefore recommended for all patients regardless of refractive error.
本研究旨在比较有窄角和无窄角近视患者的眼部生物特征。
前瞻性招募屈光稳定的近视患者（等效球镜度数近视超过-1.00 D）。使用前房角镜评估房角状态，使用眼前节光学相干断层扫描和IOLMaster进行生物测量。
共纳入29例患者（58只眼），其中13例患者（26只眼）被分类为窄角，16例患者（32只眼）被分类为开角。两组在年龄、性别和种族的基线人口统计学特征上无显著差异。窄角患者的平均年龄高于开角患者，但差异未达到统计学意义（P = 0.12）。窄角眼的中央前房深度显著更浅（P = 0.05）。然而，窄角眼的平均晶状体厚度虽更大，但未达到统计学意义（P = 0.10）。两组之间的屈光不正、眼轴长度和虹膜厚度无显著差异（P = 0.32、0.47、0.15）。
近视眼中可出现窄角。因此，建议对所有患者常规进行前房角镜检查，无论其屈光不正情况如何。
