Saint-Petersburg Multifield Hospital 2, Saint-Petersburg, Russia.
48544Saint Petersburg State University, Saint-Petersburg, Russia.
Eur J Ophthalmol. 2022 Jul;32(4):2189-2193. doi: 10.1177/11206721211051920. Epub 2021 Oct 23.
To assess refractive outcomes of phacoemulsification (PE) with additional capsular tension ring (CTR) implantation.
In total, 37 eyes of 37 patient who underwent PE with intraocular lens (IOL) implantation were divided into 2 groups: study group (n = 18) with CTR co-implantation (inclusion criteria was preoperative irido-phacodonesis) and control group (n = 19) without CTR. Optical biometry (IOL-Master 500) was performed for each patient before PE. Barrett Universal II Formula was used for IOL calculation. IOL power calculation error was assessed by comparing target refraction and final refraction measured by Topcon-8800 autorefractometer 1 month after surgery.
Despite almost identical preoperative values in both groups refractive result was different. Patients with CTR co-implantation had more hyperopic IOL power calculation error of 0.41 ± 0.52 D versus 0.04 ± 0.59 D in the control group (p = 0.043). Postoperative spherical equivalent in study group was more hyperopic (-0.40 ± 1.47 D) than in control group (-0.77 ± 1.24), nevertheless, this difference was insignificant ( = 0.166).
CTR co-implantation in patients with weak zonules and preoperative irido-phacodonesis leads to more hyperopic IOL power calculation error compared with control group.
评估白内障超声乳化术（PE）联合囊袋张力环（CTR）植入术后的屈光效果。
共纳入 37 例（37 只眼）接受白内障超声乳化联合人工晶状体（IOL）植入术的患者，将其分为两组：研究组（n=18）行 CTR 联合植入术（纳入标准为术前虹膜-晶状体接触），对照组（n=19）行单纯白内障超声乳化联合人工晶状体植入术。所有患者术前均行光学生物测量仪（IOL-Master 500）检查。采用 Barrett Universal II 公式计算 IOL 度数。术后 1 个月，采用 Topcon-8800 自动验光仪测量目标屈光度和最终屈光度，评估 IOL 计算的误差。
尽管两组患者的术前值几乎相同，但屈光结果不同。与对照组（0.04±0.59 D）相比，行 CTR 联合植入术的患者的 IOL 计算远视误差更大，为 0.41±0.52 D（p=0.043）。研究组术后等效球镜（-0.40±1.47 D）较对照组（-0.77±1.24）更远视，但差异无统计学意义（p=0.166）。
与对照组相比，对于悬韧带薄弱且术前存在虹膜-晶状体接触的患者，行 CTR 联合植入术会导致 IOL 计算的远视误差更大。
