Guan Cangyu, Xiao Tingting
Yuyan District Hospital of Guiyang, China.
Eye Sci. 2012 Jun;27(2):94-7. doi: 10.3969/j.issn.1000-4432.2012.02.009.
To investigate the occurrence of corneal incision-induced astigmatism following small incision extracapsular cataract extraction through a superotemporal incision combined with intraocular lens (IOL) implantation.
A total of 255 cases (301 eyes) who received small incision extracapsular cataract extraction through a superotemporal incision with IOL implantation in the Department of Ophthalmology, Yuyan District Hospital of Guiyang were enrolled in this clinical trial. Postoperative best-corrected visual acuity and astigmatism were measured. The patients underwent 24-week follow-up.
In total, 166 patients (65.1%, 166 eyes) completed follow-up. Astigmatism gradually declined between 1 and 12-week postoperatively, and stabilized after 12 weeks. Among 166 patients, 125 (75.3%) had astigmatism > 0.5 D at 24 weeks post-operatively, showing mostly with-the-rule astigmatism. Visual acuity steadily improved up to 12 weeks, and tended to stabilize subsequently. Over the period of 24-week postoperatively, visual acuity was negatively correlated with astigmatism (r = - 0.691, P<0.05).
Superotemporal small incision extracapsular extraction combined with IOL implantation is associated with modest astigmatism which declines over the post-operative period.
探讨颞上方小切口白内障囊外摘除联合人工晶状体（IOL）植入术后角膜切口诱导性散光的发生情况。
本临床试验纳入了贵阳市乌当区医院眼科255例（301眼）接受颞上方小切口白内障囊外摘除联合IOL植入术的患者。测量术后最佳矫正视力和散光。患者接受了24周的随访。
共有166例患者（65.1%，166眼）完成随访。散光在术后1至12周逐渐下降，并在12周后稳定。在166例患者中，125例（75.3%）在术后24周时散光>0.5 D，主要表现为顺规散光。视力在12周内稳步提高，随后趋于稳定。术后24周期间，视力与散光呈负相关（r = - 0.691，P<0.05）。
颞上方小切口白内障囊外摘除联合IOL植入术与适度的散光相关，散光在术后期间逐渐下降。
