Department of Cornea and Ocular Surface, Aditya Birla Sankara Nethralaya (A Unit of Medical Research Foundation, Chennai, India), Kolkata, West Bengal, India.
Indian J Ophthalmol. 2022 Dec;70(12):4284-4292. doi: 10.4103/ijo.IJO_878_22.
To report anterior-segment optical coherence tomography (ASOCT) characteristics of different types of corneal and anterior chamber (AC) foreign bodies (FBs) and their usefulness in diagnosis and management.
This is a retrospective descriptive clinical study involving 11 eyes of 11 patients who presented at the outpatient department of a tertiary ophthalmic care center from January 2017 to January 2022. All patients had a diagnosed or suspected corneal FB. All participants underwent a comprehensive ophthalmological examination, followed by slit-lamp photography and ASOCT. FB removal was done where required by an external, internal, or combined approach.
The mean age of patients was 28.2 (7-53) years. Ten were male, and one was female. Seven patients had a definitive positive history of injury; in one, there was a history suggestive of trauma, one had the post-operative complication of scleral buckling surgery, and two patients had a history of insect fall in the eyes. Three patients had acute, four had sub-acute, and four had chronic presentations. Descemet's membrane (DM) breach was suspected in three cases of deep FB, which was later confirmed on ASOCT. In two cases, DM was presumed to be intact clinically, but ASOCT showed an AC penetration. The FB was removed in seven patients, one via slit-lamp, one via an external approach, two via an internal approach, and three via a combined approach.
ASOCT facilitates non-invasive rapid imaging of ocular tissue at various depths, provides an accurate assessment of FB characteristics, and thereby serves as an additional tool in our armamentarium for diagnosis and management of deep corneal and AC FBs.
报告不同类型角膜和前房（AC）异物（FB）的眼前节光学相干断层扫描（ASOCT）特征及其在诊断和治疗中的作用。
这是一项回顾性描述性临床研究，共纳入 2017 年 1 月至 2022 年 1 月期间在一家三级眼科护理中心就诊的 11 例 11 只眼患者。所有患者均被诊断或疑似患有角膜 FB。所有患者均接受了全面的眼科检查，随后进行了裂隙灯照相和 ASOCT 检查。如有需要，采用外部、内部或联合方法去除 FB。
患者的平均年龄为 28.2（7-53）岁。男性 10 例，女性 1 例。7 例患者有明确的外伤史，1 例有疑似外伤史，1 例有巩膜扣带术的术后并发症，2 例有昆虫落入眼内史。3 例为急性，4 例为亚急性，4 例为慢性。3 例深 FB 患者疑似出现后弹力层（Descemet's membrane，DM）破裂，ASOCT 后来证实了这一点。2 例临床上 DM 被认为是完整的，但 ASOCT 显示 AC 穿透。7 例患者的 FB 被去除，1 例通过裂隙灯，1 例通过外部途径，2 例通过内部途径，3 例通过联合途径。
ASOCT 可实现对眼部组织各深度的非侵入性快速成像，准确评估 FB 的特征，从而成为我们在诊断和治疗深部角膜和 AC FB 方面的另一种工具。
