Spontaneous rotation of a toric implantable collamer lens related to abnormal ciliary body morphology: a case report
- PDF / 1,607,058 Bytes
- 4 Pages / 595.276 x 790.866 pts Page_size
- 34 Downloads / 134 Views
CASE REPORT
Open Access
Spontaneous rotation of a toric implantable collamer lens related to abnormal ciliary body morphology: a case report Qian Chen1,2, Qingyan Zeng2, Zheng Wang3, Chao Pan2, Xiaohua Lei2 and Weina Tan1,2*
Abstract Background: This is a case of spontaneous toric implantable collamer lens (TICL) rotation that occurred twice in the left eye of a patient. Case presentation: A 24-year-old gentleman received TICL implantation for treatment of myopic astigmatism encountered with spontaneous rotation of approximately 90° from its original position. TICL reposition procedure was performed with visual outcome of 20/16. Surprisingly, a re-rotation of TICL occurred. The patient underwent a replacement of non-toric ICL with a larger size after careful re-evaluation with final visual outcome of 20/20. A short and small ciliary process with shallow ciliary sulcus and posteriorly positioned ciliary body was found by Ultrasound Biomicroscopy (UBM). Conclusions: The unique morphology of the ciliary body may have a potential association with the vault and instability of implanted ICL. Careful examination of the ciliary body morphology is essential in preoperative evaluation. Keywords: Ciliary body, Myopic astigmatism, Rotation, Toric implantable Collamer Lens
Background The Visian Toric Implantable Collamer Lens (TICL) (STAAR Surgical, Nidau, Switzerland) is a foldable lens designed to correct myopia and myopic astigmatism. Previous studies have revealed that the position of the V4C TICL in the eye is stable with an average rotation angle of 3.39 ± 2.36° [1]. According to the current literature, there is only few reports of spontaneous TICL rotation that led significant decrease in visual acuity and required further surgical procedures [2, 3].Here, we present a rare case in which a TICL spontaneously rotated approximately 90° twice and analyze the possible
* Correspondence: [email protected] 1 Aier Eye Hospital of Wuhan University, Wuhan, Hubei Province, China 2 Hankou Aier Eye Hospital, Machang Road, Jianghan District, Wuhan, Hubei Province, China Full list of author information is available at the end of the article
causes of the rotation and the finally successful management strategy.
Case presentation A 24-year-old gentleman with no history of systemic and ocular diseases and surgery presented for refractive surgery. The patient’s uncorrected distance visual acuity (UDVA) was 20/160 in the right eye and 20/200 in the left eye, with refractive error of − 7.00 -1.00 × 5° and 9.50 - 2.00 × 175°. The anterior segment and fundus evaluations were unremarkable. Keratometric values, central corneal thickness, anterior chamber depth from the endothelium of the cornea in bilateral eyes measured by Pentacam HR (Oculus, Germany) were 43.3@96/ 42.1@6 and 43.8@93/42.3@3, 574 μm and 571 μm, 3.27 mm and 3.20 mm, respectively, while white-to-white distance obtained with a caliper were both 10.93 mm, horizontal sulcus-to-sulcus distance assessed by the UBM
© The Author(s). 2020 Open Access This article is license
Data Loading...
