University Eye Clinic, Maastricht University Medical Center, Maastricht, The Netherlands.
J Cataract Refract Surg. 2011 Aug;37(8):1403-10. doi: 10.1016/j.jcrs.2011.03.034.
To evaluate the visual and refractive outcomes after toric intraocular lens (IOL) implantation in patients with high amounts of corneal astigmatism.
University Eye Clinic, Maastricht, The Netherlands; Oftalvist Centro Integral Ocular and Fundación Oftalmológica del Mediterráneo, Valencia, Spain.
Cohort study.
This study comprised eyes with cataract and more than 2.25 diopters (D) of corneal astigmatism who had toric Acrysof SN60T6, SN60T7, SN60T8, or SN60T9 IOL implantation. The uncorrected (UDVA) and corrected (CDVA) distance visual acuities, visual potential index (ratio of postoperative UDVA to postoperative CDVA), residual refractive cylinder, IOL misalignment, and surgically induced astigmatism (SIA) were evaluated.
The mean follow-up in this study of 67 eyes (45 patients) was 6.3 months. Postoperatively, the mean UDVA was 0.61 ± 0.26 (SD) and the mean CDVA, 0.81 ± 0.21. The UDVA of 20/40 was better in 83% of eyes and 20/30 or better in 50% of eyes. The mean visual potential index was 0.78. The residual refractive cylinder was less than 0.75 D in 62% of eyes and less than 1.00 D in 81% of eyes. The mean IOL misalignment was 3.2 ± 2.8 degrees. The mean SIA was -0.40 ± 0.60 D with a superior incision and -0.19 ± 0.78 D with a temporal incision (P=.034).
Implantation of the toric IOL during cataract surgery was effective and safe in correcting high amounts of corneal astigmatism.
评估在角膜散光超过 2.25 屈光度的患者中植入散光型人工晶状体（IOL）后的视力和屈光结果。
荷兰马斯特里赫特大学眼科诊所；西班牙瓦伦西亚 Oftalvist Centro Integral Ocular 和 Fundación Oftalmológica del Mediterráneo。
队列研究。
本研究纳入了白内障合并超过 2.25 屈光度角膜散光的患者，这些患者接受了 toric Acrysof SN60T6、SN60T7、SN60T8 或 SN60T9 IOL 植入。评估了未矫正（UDVA）和矫正（CDVA）远视力、视觉潜能指数（术后 UDVA 与术后 CDVA 的比值）、残余屈光柱、IOL 偏心和手术源性散光（SIA）。
这项研究对 67 只眼（45 例患者）进行了平均 6.3 个月的随访。术后平均 UDVA 为 0.61±0.26（SD），平均 CDVA 为 0.81±0.21。20/40 的视力优于 83%的眼睛，20/30 或更好的视力优于 50%的眼睛。平均视觉潜能指数为 0.78。62%的眼睛残余屈光柱小于 0.75 D，81%的眼睛残余屈光柱小于 1.00 D。平均 IOL 偏心为 3.2±2.8 度。切口位于上方时平均 SIA 为-0.40±0.60 D，切口位于颞侧时平均 SIA 为-0.19±0.78 D（P=0.034）。
白内障手术中植入散光型 IOL 可有效安全地矫正大量角膜散光。
