Journal of Otolaryngology and Ophthalmology of Shandong University ›› 2024, Vol. 38 ›› Issue (4): 76-85.doi: 10.6040/j.issn.1673-3770.0.2023.138

• Original Article • Previous Articles     Next Articles

Evaluation of three different aspheric intraocular lens tilts and decentrations in capsular bags after cataract surgery based on CASIA2

MA Jiling1,2,3, WANG Xiaoming2, LI Yan2, MU Yanxiao2, JIN Lin3, KONG Hui3, YANG Naifu1,2, DANG Guangfu3   

  1. 1. School of Ophthalmology and Optometry, Shandong University of Traditional Chinese Medicine, Jinan 250105, Shandong, China2. Department of Cataract, Jinan Mingshui Eye Hospital, Jinan 250200, Shandong, China3. Department of Ophthalmology, The First Affiliated Hospital of Shandong First Medical University, Jinan 250014, Shandong, China
  • Published:2024-07-09

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Abstract: Objective Evaluation of tilt and decentration of 3 kinds of aspheric intraocular lens(IOL)after cataract surgery based on a new anterior segment swept-source optical coherence tomography CASIA2. Methods Retrospective case series. Clinical data of patients with cataracts who underwent phacoemulsification and IOL implantation between October 2020 and March 2021 were collected. Moreover, clinical data such as age, sex, best-corrected visual acuity(BCVA)before and on the first day after surgery, axial length(AL), and type and power of the IOL used were collected from all patients. CASIA2 was used to obtain clear images at 1, 7, and 30 days postoperatively. Horizontal and vertical tilt and decentration in two-dimensional(2D)images, and tilt, decentration, and orientation in three-dimensional(3D)images were assessed. SPSS26.0 software was used for statistical analysis. Additionally, P<0.05 was considered statistically significant. Results In total, 134 patients(157 eyes)were enrolled. The patients comprised 52 males and 82 females, with an age range of 45-86 years and an average age of 67.86±8.26 years. The eyes were divided into groups A(HOYA250), B(RS60A), and C(ZCB00). The study included 31, 34, and 15 right eyes, and 25, 29, and 23 left eyes. No significant differences were observed in ocular AL, IOL power, or frequency of BCVA improvement on day 1 after surgery among the three groups. On day 7 postoperatively, the horizontal tilt degree of group A was greater than that of group B in 2D images. On days 1 and 7 postoperatively, the horizontal decentration of group A was smaller than that of group B in 2D images; and on days 1 and 7 postoperatively, the vertical tilt degree of group A was larger than that of group C in 2D images, with a significant difference between the two groups. On days 1 and 7 postoperatively, significant differences in the orientation of the tilt between groups A and C group in 3D images were observed. The vertical decentration of group A 1 day postoperatively was significantly greater than that at 30 days postoperatively. On 1, 7, and 30 days postoperatively, the decentration of group A was significantly smaller than that of group B in the 3D images. No significant differences in the remaining intergroup and intragroup results were observed. Left eye results: on days 7 and 30 postoperatively, the decentration of group A was significantly lower than that of group B in 3D images. The tilt of group C 1 day postoperatively was significantly smaller than that at 30 days postoperatively. No significant differences in the remaining intergroup and intragroup results were identified. On days 1, 7, and 30 postoperatively, the three IOL groups demonstrated temporal and infratemporal trends; however, the tilt trend displayed no bias. Conclusion Different degrees of tilt and decentration of the three types of IOLs in the capsular bags were identified. The three types of IOLs demonstrated a tendency to tilt to the temporal and infratemporal sides, and decentration did not display a biased tendency.

Key words: Cataract, Aspheric intraocular lens, Optical coherence tomography, Tilt, Decentration

CLC Number: 

  • R776.1
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