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首页> 外文期刊>BMC Ophthalmology >Effect of incision on visual outcomes after implantation of a trifocal diffractive IOL
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Effect of incision on visual outcomes after implantation of a trifocal diffractive IOL

机译：切口在三焦点衍射IOL植入后视觉结果的影响

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To evaluate visual acuity, corneal astigmatism and corneal higher-order aberrations (HOAs) after implantation of trifocal diffractive IOLs operated with either a corneal steep-axis incision or 135° incision. This prospective study enrolled patients randomly assigned to different groups. According to preoperative corneal astigmatism, 101 eyes of 77 patients were assigned into group A1 (0 ~?0.50 D) or A2 (0.51 ~?1.00 D) with a corneal steep-axis incision or group B1 (0 ~?0.50 D) or B2 (0.51 ~?1.00 D) with a 135° incision. Visual acuity, corneal astigmatism and corneal higher-order aberrations (HOAs) were followed-up for 3?months. Corneal astigmatism in group A2 significantly decreased 3?months after surgery (P??0.01) and was significantly lower than that in group B2 1?day, 2?weeks, 1?month, and 3?months postoperatively (all values of P??0.01). The following parameters were better in group A2 than in group B2: uncorrected intermediate visual acuity (UIVA) at 1?day, 2?weeks, 1?month, and 3?months (P?=?0.00, 0.00, 0.01, 0.01, respectively);uncorrected distance visual acuity (UDVA) at 1?day and 2?weeks (P?=?0.00, 0.01); and uncorrected near visual acuity (UNVA) at 1?day, 2?weeks, and 1?month postoperatively (P?=?0.00, 0.01, 0.02, respectively). After a corneal steep-axis incision, patients with preoperative corneal astigmatism of 0.51 D to 1.00 D exhibited reduced corneal astigmatism and achieved better UIVA and early postoperative UDVA/UNVA. Retrospectively Registered Trials ISRCTN10086721 , 23/06/2018.
机译：在用角膜陡峭轴切口或135°切口操作的三焦点衍射IOL植入后，评估视力，角膜散差和角膜高阶像差（HOAS）。该前瞻性研究注册了随机分配给不同群体的患者。根据术前角膜散光，将101只眼睛分配成A1（0〜0.50d）或A2（0.51〜1.00d），具有角膜陡峭轴切口或B1（0〜0.50d）或B2（0.51〜1.00d），切口135°。视力，角膜散差和角膜高阶像差（HOAs）被出现3个月。 A2组的角膜散光明显下降3？手术后的数月（P？<？0.01）并且显着低于B2群1？日，2？周，1？月3月，3个月（所有值P ？<？0.01）。组A2组比B2组更好：未校正的中间视力（UIVA）在1？日，2？周，1？月3日（P？= 0.00,0.01，0.01，0.01,0.01，0.01,0.01，0.01,0.01，0.01,0.01，0.01,0.01，0.01,0.01分别是一个未矫正的距离视力（UDVA）在1？日和2周（P？= 0.00,0.01）;在视力（UNVA）附近未矫正在1？日，2个？周和1？术后每月（p？= 0.00,0.01,0.02）。在角膜陡峭轴切口后，术前角膜散光患者为0.51d至1.00 d表现出角膜散差异，并达到了更好的UIVA和术后UDVA / UNVA。回顾性注册试验ISRCTN10086721,23 / 06/2018。

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