Department of Ophthalmology, NKP Salve Institute of Medical Sciences and Research Centre, Nagpur, Maharashtra, India.
Indian J Ophthalmol. 2023 Mar;71(3):751-756. doi: 10.4103/ijo.IJO_1616_22.
To estimate the postoperative astigmatism after small-incision cataract surgery (SICS) done by junior residents at the end of 1 and 3 months.
This observational longitudinal study was conducted at the Department of Ophthalmology of a tertiary eye care hospital and research center. 50 patients enrolled in the study underwent manual small incision cataract surgery by junior residents. Preoperative detailed ocular examination was done, which included keratometric estimation using autokeratometer (GR-3300K). Incision length, distance of incision from the limbus, and type of suturing technique were noted. Postoperatively, keratometric readings were noted at 1 and 3 months. Astigmatism (surgically induced astigmatism [SIA]) was estimated using Hill's SIA calculator version 2.0. All the analyses were performed using Statistical Package for the Social Sciences (SPSS) ver. 26.0 (IBM Corp., USA) software, and the statistical significance was tested at a 5% level.
Out of 50 patients, 54% had SIA between 1.5 and 2.5 D and 32% had SIA of more than 2.5 D. Only 14% had SIA less than 1.5 D at the end of 1 month. While 52% had SIA between 1.5 and 2.5 D, 22% had SIA between 1.5 and 2.5 D and 26% had SIA less than 1.5 D at the end of 3 months.
The SIA in most of the SICS done by junior residents was above 1.5 D. It depended mainly on the incision length, its distance from the limbus, and the suturing technique.
评估由初级住院医师在术后 1 个月和 3 个月时进行的小切口白内障手术（SICS）后的术后散光。
本观察性纵向研究在一家三级眼科保健医院和研究中心的眼科进行。 50 名患者参加了该研究，他们接受了初级住院医师的手动小切口白内障手术。术前进行了详细的眼部检查，包括使用自动角膜曲率计（GR-3300K）进行角膜曲率估计。记录切口长度、切口距角膜缘的距离和缝合技术类型。术后 1 个月和 3 个月记录角膜曲率读数。使用 Hill 的 SIA 计算器版本 2.0 估计散光（手术诱导散光[SIA]）。所有分析均使用社会科学统计软件包（SPSS）版本 26.0（美国 IBM 公司）软件进行，以 5%的水平进行统计显著性检验。
在 50 名患者中，54%的患者 SIA 为 1.5 至 2.5 D，32%的患者 SIA 大于 2.5 D。术后 1 个月时，只有 14%的患者 SIA 小于 1.5 D。而 52%的患者 SIA 为 1.5 至 2.5 D，22%的患者 SIA 为 1.5 至 2.5 D，26%的患者 SIA 小于 1.5 D。
大多数由初级住院医师进行的 SICS 的 SIA 大于 1.5 D。它主要取决于切口长度、距角膜缘的距离和缝合技术。
