Eye Center, Second Affiliated Hospital of School of Medicine, Zhejiang University, No. 88 Jiefang Road, Hangzhou, China.
Department of Ophthalmology, Taizhou Municipal Hospital, Taizhou, China.
BMC Ophthalmol. 2021 Oct 18;21(1):367. doi: 10.1186/s12886-021-02113-z.
Capsule contraction syndrome (CCS) after cataract surgery causes intraocular lens (IOL) haptic flexion and IOL optic displacement in most former reports. However, there are few reports on CCS-induced deformation of the IOL optic. We report two cases of CCS after cataract surgery in highly myopic eyes and describe a previously unreported "double arch" complication.
Two patients with history of high myopia had cataract surgery with hydrophilic acrylic plate haptic IOLs implanted in their eyes. CCS with arch shape deformation of the pupil as well as the optic of the IOL were noticed in both cases after three months, which induced refractive changes and corrected distance visual acuity (CDVA) deterioration. Visual acuity of the patients was restored by replacing the IOL from the capsular bag to the ciliary sulcus and the following neodymium: YAG (Nd:YAG) laser capsulotomy. We propose that such "double arch" change brought by CCS is related to the plate-haptic design of the IOL and the incomplete overlap between the capsular opening and the IOL optic.
We recommend careful IOL selection and proper capsulorhexis in patients with high myopia or with other risk factors of CCS. Early diagnosis and timely treatment of CCS are critical to prevent visual symptoms and further ocular complications.
在大多数先前的报道中，白内障手术后的囊袋收缩综合征（CCS）会导致人工晶状体（IOL）襻弯曲和 IOL 光学部移位。然而，关于 CCS 引起的 IOL 光学部变形的报道很少。我们报告了两例高度近视患者白内障手术后发生的 CCS，并描述了一种以前未报道的“双拱”并发症。
两名高度近视病史的患者在其眼中植入亲水丙烯酸板襻人工晶状体进行白内障手术。术后三个月，均出现瞳孔和 IOL 光学部呈弓形变形的 CCS，导致屈光变化和矫正远视力（CDVA）恶化。通过将 IOL 从囊袋置换到睫状沟并用 Nd：YAG 激光行后囊切开术，恢复了患者的视力。我们提出，CCS 引起的这种“双拱”变化与 IOL 的板襻设计以及囊袋开口与 IOL 光学部之间的不完全重叠有关。
我们建议在高度近视或有其他 CCS 风险因素的患者中，仔细选择 IOL 并进行适当的囊袋撕囊。早期诊断和及时治疗 CCS 对于预防视觉症状和进一步的眼部并发症至关重要。
