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Transient Angle Obstruction Detected by Anterior-Segment Optical Coherence Tomography and Intraocular Pressure Elevation after Hemodialysis
Case Reports in Ophthalmology ( IF 0.5 ) Pub Date : 2021-09-13 , DOI: 10.1159/000513957
Mihoko Mochiji 1 , Aika Tsutsui 1 , Kaoru Manabe 1 , Masaki Tanito 1
Affiliation  

An 80-year-old Japanese man presented with decreased vision in his right eye (OD) after every hemodialysis (HD) session beginning several months previously. His local ophthalmologist prescribed antiglaucoma medications because of high intraocular pressure (IOP) (38 mm Hg) OD 4 months previously; with treatment, the IOP fluctuated between 6 and 34 mm Hg OD. When hospitalized, the IOP was measured, and the anterior chamber was observed by anterior-segment optical coherence tomography (AS-OCT) before and after HD. Before HD, the IOP levels were 7 mm Hg OD and 8 mm Hg in the left eye (OS). AS-OCT showed marked anterior iris bowing due to circumferential posterior synechia OD. The scan showed irido-trabecular contact (ITC) in the nasal angle and not the temporal angle OD. Immediately after HD, the IOP levels were 28 mm Hg OD and 12 mm Hg OS; AS-OCT showed ITC in the nasal and temporal angles OD. Since the iris bombe and HD-induced increase in the ITC were expected to have caused the IOP spike and blurred vision, posterior synechialysis and goniosynechialysis were performed OD. Postoperatively, the iris plane flattened; no IOP spike was recorded, and the blurred vision after HD resolved. At 22 months postoperatively, the IOP was 7 mm Hg in both eyes (OU). No deterioration of visual acuity and visual field was recorded during the follow-up period OU. IOP spikes can occur during and after HD because of transient anterior chamber angle obstruction in cases with narrow angles. AS-OCT is useful for detecting minor morphologic changes in the anterior chamber angle during HD.
Case Rep Ophthalmol 2021;12:761–765


中文翻译:

前段光学相干断层扫描和血液透析后眼压升高检测瞬时角障碍

一名 80 岁的日本男子在几个月前开始的每次血液透析 (HD) 会议后出现右眼 (OD) 视力下降。由于 4 个月前的高眼压 (IOP) (38 mm Hg) OD,他当地的眼科医生开了抗青光眼药物;治疗后,IOP 在 6 到 34 mm Hg OD 之间波动。住院时测量眼压,HD前后用前段光学相干断层扫描(AS-OCT)观察前房。在 HD 之前,左眼 (OS) 的 IOP 水平为 7 mm Hg OD 和 8 mm Hg。由于圆周后粘连 OD,AS-OCT 显示明显的前虹膜弯曲。扫描显示鼻角有虹膜小梁接触 (ITC),而不是颞角 OD。HD 后立即眼压水平为 28 mm Hg OD 和 12 mm Hg OS;AS-OCT 在鼻角和颞角 OD 显示 ITC。由于虹膜爆炸和 HD 引起的 ITC 增加预计会导致 IOP 峰值和视力模糊,因此在 OD 下进行了后粘连和房角粘连分析。术后,虹膜平面变平;没有记录到 IOP 峰值,HD 后视力模糊得到解决。术后 22 个月时,双眼 (OU) 的 IOP 为 7 mm Hg。在随访期间 OU 中没有记录到视力和视野的恶化。在 HD 期间和之后,IOP 峰值可能发生,因为在窄角的情况下,短暂的前房角阻塞。AS-OCT 可用于检测 HD 期间前房角的微小形态变化。由于虹膜爆炸和 HD 引起的 ITC 增加预计会导致 IOP 峰值和视力模糊,因此在 OD 下进行了后粘连和房角粘连分析。术后,虹膜平面变平;没有记录到 IOP 峰值,HD 后视力模糊得到解决。术后 22 个月时,双眼 (OU) 的 IOP 为 7 mm Hg。在随访期间 OU 中没有记录到视力和视野的恶化。在 HD 期间和之后,IOP 峰值可能发生,因为在窄角的情况下,短暂的前房角阻塞。AS-OCT 可用于检测 HD 期间前房角的微小形态变化。由于虹膜爆炸和 HD 引起的 ITC 增加预计会导致 IOP 峰值和视力模糊,因此在 OD 下进行了后粘连和房角粘连分析。术后,虹膜平面变平;没有记录到 IOP 峰值,HD 后视力模糊得到解决。术后 22 个月时,双眼 (OU) 的 IOP 为 7 mm Hg。在随访期间 OU 中没有记录到视力和视野的恶化。在 HD 期间和之后,IOP 峰值可能发生,因为在窄角的情况下,短暂的前房角阻塞。AS-OCT 可用于检测 HD 期间前房角的微小形态变化。没有记录到 IOP 峰值,HD 后视力模糊得到解决。术后 22 个月时,双眼 (OU) 的 IOP 为 7 mm Hg。在随访期间 OU 中没有记录到视力和视野的恶化。在 HD 期间和之后,IOP 峰值可能发生,因为在窄角的情况下,短暂的前房角阻塞。AS-OCT 可用于检测 HD 期间前房角的微小形态变化。没有记录到 IOP 峰值,HD 后视力模糊得到解决。术后 22 个月时,双眼 (OU) 的 IOP 为 7 mm Hg。在随访期间 OU 中没有记录到视力和视野的恶化。在 HD 期间和之后,IOP 峰值可能发生,因为在窄角的情况下,短暂的前房角阻塞。AS-OCT 可用于检测 HD 期间前房角的微小形态变化。
Case Rep Ophthalmol 2021;12:761–765
更新日期:2021-09-13
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