From the Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China (Yiyi Wang, Lou, Y. Li, Wu, S. Li, Yalan Wang, Zhao, Chang); National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, China (Yiyi Wang, Lou, Y. Li, Wu, S. Li, Yalan Wang, Zhao, Chang); Eye Hospital of Wenzhou Medical University Hangzhou Branch, Hangzhou, China (Yiyi Wang, Lou, Y. Li, Wu, S. Li, Yalan Wang, Zhao, Chang); The First Affiliated Hospital of Ningbo University, Ningbo, China (Qian).
J Cataract Refract Surg. 2024 Mar 1;50(3):283-288. doi: 10.1097/j.jcrs.0000000000001373.
To compare the effect of capsular bend on the rotational stability between 2 toric intraocular lenses (IOLs).
Eye Hospital of Wenzhou Medical University, Hangzhou, Zhejiang Province, China.
Prospective study.
Patients with preexisting astigmatism received AcrySof IQ (SN6AT) or TECNIS (ZCT/ZMT) toric IOL during cataract surgery. CASIA2 was used to record the toric IOL axial orientation and capsular bend index (CBI) at the 1-day, 1-week, 1-month, and 3-month interval postoperatively. The postoperative rotational stability and CBI of both models were compared.
A total of 58 eyes from 58 patients were enrolled in this study. The total misalignment of the TECNIS (ZCT/ZMT) group (6.96 ± 5.10 degrees, 7.41 ± 5.19 degrees, 6.93 ± 5.29 degrees, and 6.86 ± 5. 27 degrees) was significantly higher than that of the AcrySof IQ (SN6AT) group (3.55 ± 2.21 degrees, 4.00 ± 2.74 degrees, 3.72 ± 2.72 degrees, and 3.52 ± 2.50 degrees) at all follow-up intervals ( P < .05). The mean rotation of the TECNIS (ZCT/ZMT) group (2.66 ± 2.18 degrees) was significantly greater than that of the AcrySof IQ (SN6AT) group (1.65 ± 1.47 degrees) from 1 day to 1 week postoperatively ( P < .05). The capsular bend formation in the TECNIS (ZCT/ZMT) group was delayed compared with the AcrySof IQ (SN6AT) group ( P < .05, at the 1-week, 1-month, and 3-month interval). The TECNIS (ZCT/ZMT) group showed fibrosis in the peripheral anterior capsule, leading to its stretching away from the IOL surface, while the AcrySof IQ (SN6AT) group exhibited gentle adherence of the anterior capsule to the IOL surface.
The AcrySof IQ toric IOL (SN6AT) exhibited greater rotational stability than the TECNIS toric IOL (ZCT/ZMT), which may partially result from the delay in capsular bend formation of TECNIS at the 1-day to 1-week follow-up postoperatively.
比较两种散光人工晶状体（IOL）的囊袋弯曲对旋转稳定性的影响。
中国浙江省温州市医科大学附属眼视光医院。
前瞻性研究。
患有预先存在的散光的患者在白内障手术期间接受 AcrySof IQ（SN6AT）或 Tecnis（ZCT/ZMT）散光 IOL。使用 CASIA2 记录术后 1 天、1 周、1 个月和 3 个月时的散光 IOL 轴向定位和囊袋弯曲指数（CBI）。比较两种模型的术后旋转稳定性和 CBI。
本研究共纳入 58 例 58 只眼。Tecnis（ZCT/ZMT）组的总偏位（6.96±5.10°、7.41±5.19°、6.93±5.29°和 6.86±5.27°）明显高于 AcrySof IQ（SN6AT）组（3.55±2.21°、4.00±2.74°、3.72±2.72°和 3.52±2.50°），在所有随访间隔（P<.05）。Tecnis（ZCT/ZMT）组的平均旋转（2.66±2.18°）明显大于 AcrySof IQ（SN6AT）组（1.65±1.47°），从术后 1 天至 1 周（P<.05）。与 AcrySof IQ（SN6AT）组相比，Tecnis（ZCT/ZMT）组的囊袋弯曲形成延迟（P<.05，在术后 1 周、1 个月和 3 个月的间隔）。Tecnis（ZCT/ZMT）组表现为前囊周边纤维化，导致其从 IOL 表面拉伸，而 AcrySof IQ（SN6AT）组表现为前囊与 IOL 表面的轻微附着。
AcrySof IQ 散光 IOL（SN6AT）的旋转稳定性优于 Tecnis 散光 IOL（ZCT/ZMT），这可能部分归因于 Tecnis 在术后 1 天至 1 周的随访中囊袋弯曲形成延迟。
