Department of Ophthalmology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.
Doc Ophthalmol. 2021 Apr;142(2):233-238. doi: 10.1007/s10633-020-09786-9. Epub 2020 Aug 17.
To report our findings in a case of lens fragment-induced uveitis associated with supernormal flicker electroretinograms (ERGs) twenty months after the cataract surgery.
This is an observational case report. Full-field flicker ERGs were recorded with the RETeval system. Optical coherence tomography (OCT) and slit-lamp biomicroscopy were used to assess the uveitis during the follow-up period.
A 70-year-old man, who had undergone cataract surgery 20 months earlier, visited our hospital with a complaint of decreased vision in his right eye. Slit-lamp biomicroscopy revealed corneal edema and a lens fragment was detected in the inferior part of the anterior chamber. OCT showed cystoid macular edema, and flicker ERGs showed a marked increase in the amplitude and a delay in the implicit time in the right eye. These abnormalities of the flicker ERGs improved gradually after the removal of lens fragment and application of topical anti-inflammatory medications.
Our case of lens-induced uveitis had supernormal flicker ERG amplitudes. Clinicians should be aware that eyes with uveitis can have larger-than-normal ERG amplitudes.
报告 1 例白内障术后 20 个月因晶状体碎片引起的葡萄膜炎伴超正常值闪烁视网膜电图（ERG）的发现。
本病例报告为观察性研究。采用 RETeval 系统记录全视野闪烁 ERG。在随访期间，采用光学相干断层扫描（OCT）和裂隙灯生物显微镜来评估葡萄膜炎。
1 名 70 岁男性，20 个月前接受白内障手术，因右眼视力下降就诊。裂隙灯检查显示角膜水肿，前房下部可见晶状体碎片。OCT 显示囊样黄斑水肿，闪烁 ERG 显示右眼振幅明显增加，潜伏期延迟。在晶状体碎片取出和局部应用抗炎药物后，闪烁 ERG 的这些异常逐渐改善。
本晶状体诱导性葡萄膜炎患者的闪烁 ERG 振幅呈超正常值。临床医生应注意到患有葡萄膜炎的眼睛可能会出现大于正常的 ERG 振幅。
