眼前节 OCT 与 Scheimpflug 及扫频源 OCT 测量值在眼前节参数中的应用比较。

Intraoperative OCT vs Scheimpflug and swept-source OCT measurements for anterior eye parameters.

机构信息

From the Department of Ophthalmology, Goethe-University, Frankfurt am Main, Germany (Böhm, Müller, Paul, Hemkeppler, Kohnen); Harvard Medical School, Boston, Massachusetts (Böhm).

出版信息

J Cataract Refract Surg. 2022 Jun 1;48(6):667-672. doi: 10.1097/j.jcrs.0000000000000813.

DOI:10.1097/j.jcrs.0000000000000813

PMID:34486574

Abstract

PURPOSE

To compare agreement of anterior segment parameter measurements using an intraoperative optical coherence tomography (iOCT) of a femtosecond laser (LenSx) during interface docking to the eye with preoperative Scheimpflug tomography (Pentacam AXL) and swept-source optical coherence tomography (SS-OCT) (IOLMaster 700).

SETTING

Department of Ophthalmology, Goethe University, Frankfurt, Germany.

DESIGN

Retrospective study.

METHODS

Anterior segment measurements were performed in mydriasis prior to surgery using Scheimpflug tomography and SS-OCT. Postoperatively, iOCT images were analyzed using a modification of the FIJI image-processing program. Outcome measures included external anterior chamber depth (ACD), central corneal thickness (CCT), and central lens thickness (LT).

RESULTS

95 eyes of 66 patients who underwent planned OCT guided femtosecond laser-assisted lens surgery were included. The ACD measured with the iOCT was -0.011 ± 0.126 mm smaller (P = .389) than that with the SS-OCT and -0.059 ± 0.185 mm than with the Scheimpflug tomography (P = .003). The SS-OCT measured a -0.047 ± 0.146 mm smaller ACD than the Scheimpflug tomography (P = .002). The measurements of CCT using the iOCT and the Scheimpflug tomography (-0.705 ± 20.837 μm, P = .742) and the LT measurements using SS-OCT and iOCT (-0.050 ± 0.089 mm, P < .001) showed no clinically relevant difference. Only the ACD between the iOCT and the Scheimpflug tomography showed a clinically relevant difference.

CONCLUSIONS

The comparison of the anterior segment parameters of iOCT with SS-OCT showed no clinically relevant differences regarding the ACD and the LT. However, Scheimpflug tomography vs iOCT measured a small clinically relevant difference for ACD. The iOCT showed no clinically relevant differences in anterior segment parameters compared with the SS-OCT. A small clinically relevant difference for ACD was found in comparison with that of a Scheimpflug device.

摘要

目的

比较飞秒激光界面对接时术中光相干断层扫描（iOCT）与术前Scheimpflug 断层扫描（Pentacam AXL）和扫频源光学相干断层扫描（SS-OCT）（IOLMaster 700）对眼前节参数测量的一致性。

设置

德国法兰克福歌德大学眼科。

设计

回顾性研究。

方法

术前散瞳后用 Scheimpflug 断层扫描和 SS-OCT 进行眼前节测量。术后使用 FIJI 图像处理程序对 iOCT 图像进行分析。测量指标包括外部前房深度（ACD）、中央角膜厚度（CCT）和中央晶状体厚度（LT）。

结果

纳入 95 例（66 例患者）计划接受 OCT 引导的飞秒激光辅助晶状体手术的患者。iOCT 测量的 ACD 比 SS-OCT 小 0.011 ± 0.126mm（P =.389），比 Scheimpflug 断层扫描小 0.059 ± 0.185mm（P =.003）。SS-OCT 测量的 ACD 比 Scheimpflug 断层扫描小 0.047 ± 0.146mm（P =.002）。iOCT 和 Scheimpflug 断层扫描测量的 CCT（-0.705 ± 20.837μm，P =.742）和 SS-OCT 和 iOCT 测量的 LT（-0.050 ± 0.089mm，P <.001）之间没有临床相关差异。只有 iOCT 和 Scheimpflug 断层扫描的 ACD 之间存在临床相关差异。

结论

iOCT 与 SS-OCT 比较眼前节参数，在 ACD 和 LT 方面无临床显著差异。然而，Scheimpflug 断层扫描与 iOCT 测量的 ACD 存在临床相关的微小差异。iOCT 与 SS-OCT 相比，眼前节参数无临床显著差异。与 Scheimpflug 设备相比，发现 ACD 存在临床相关的微小差异。