横切口对白内障伴角膜高度散光患者视功能和立体视觉的影响

发布时间：2018-01-23 23:20

本文关键词： 横切口角膜散光白内障立体视觉　出处：《重庆医学》2014年23期 　论文类型：期刊论文

【摘要】：目的探讨横切口对白内障伴高度角膜散光患者视功能及立体视觉的影响。方法收集单眼白内障伴角膜散光大于2.0D患者40例,随机分为两组,A组20例(20眼),B组20例(20眼)。A组行11:00钟位,3.0mm透明角膜切口超声乳化白内障摘出联合后房型人工晶体植入术;B组首先完成同A组的手术操作,然后以最陡峭子午线为中心,做成对横切口。观察患者术后3个月裸眼视力、角膜散光、远立体视锐度。结果两组术后裸眼视力比较差异有统计学意义(P0.01);角膜散光矢量A组J0及P术前与术后比较差异无统计学意义(P0.05),B组J0及P术后与术前比较差异有显著统计学意义(均P0.01),A组与B组术后3个月J0及P值比较差异有显著统计学意义(P0.01);A组术后远立体视锐度在100″以上,B组在70″以下,B组术后远立体视锐度优于A组(P0.01)。结论横切口可以提高白内障伴高度角膜散光患者的视功能及立体视觉。
[Abstract]:Objective to investigate the effect of transverse incision on visual function and stereopsis in patients with cataract with high corneal astigmatism. Methods 40 patients with single eye cataract with corneal astigmatism greater than 2.0 D were randomly divided into two groups. Group A (n = 20) received phacoemulsification with a transparent corneal incision of 3.0mm at 11:00 and posterior chamber intraocular lens implantation in group B (n = 20). Group B first completed the operation with the same group A, then with the steepest meridian as the center, made a transverse incision. The patients' naked vision and corneal astigmatism were observed 3 months after operation. Results there was significant difference in uncorrected visual acuity between the two groups (P 0.01). Corneal astigmatism vector A group J0 and P before and after the difference was not statistically significant. Group B J0 and P group J0 and P compared with the preoperative significant difference (all P 0.01). There was significant difference in J0 and P between group A and group B 3 months after operation (P 0.01). The acuity of distant stereopsis in group A was more than 100 "and that in group B was less than 70". Conclusion Transverse incision can improve the visual function and stereoscopic vision of cataract patients with high corneal astigmatism.
【作者单位】：承德医学院附属医院眼科;
【分类号】：R779.66
【正文快照】： 在屈光性白内障手术时代,白内障手术的理想目标不仅要达到复明效果,而且要获得舒适的双眼视觉。白内障可导致患者立体视觉显著异常或发生立体盲。虽然有研究显示术后90%患者可获得较好的立体觉,但人工晶体(IOL)植入术后出现的大散光影响双眼单视及立体视的恢复[1]。对白内障合

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