摘要
目的观察AcrySofToric人工晶状体(IOL)植入的临床效果和旋转稳定性;探讨如何减少术后散光轴位的偏差。方法白内障合并角膜规则散光120例(120眼),随机分A、B两组各60例(60眼),分别植入AcrySofToricIOL(A组)、单焦点人工晶状体AcrySofSA60AT(B组)。观察术后3个月和6个月时未校正视力(UCVA)及总散光度,对两组术后视觉效果进行分析和比较,比较A组60眼术后3个月和6个月时IOL散光轴位的旋转度,评价其在囊袋的稳定性,探讨如何减少术后散光轴位的偏差。结果术后120眼视力均有不同程度提高。术后3个月时A组60眼的UCVA为(O.78±0.15),B组60眼的UCVA为(O.53±0.11),两者差异有统计学意义(P〈0.05),A组视力提高优于B组。6个月时A组的总散光度从术前的2.07D降至0.67D,下降了约68%,B组的总散光与术前相比无明显改善。A组术后3个月IOL的旋转度平均值是(3.66±2.81)度,术后6个月IOI.的旋转度平均值是(3.65±2.74)度。术后6个月IOL的旋转度与术后3个月IOL的旋转度相比,差异无统计学意义(P〉0.05)。结论AcrySofToricIOL能显著减少术后散光,使白内障合并角膜规则散光的患者术后获得良好的视觉效果;具有良好的旋转稳定性;术后散光轴位出现偏差的原因与术者操作密切相关。
Objective To observe the efficacy and rotational stability of AcrySof Toric lens (IOL) implantation; To explore ways to reduce postoperative astigmatism axis deviation. Methods This prospec- tive observational study included 120 eyes from 120 consecutive patients, who were randomly divided into two groups. 60 cases in group A were implanted with the AcrySof Toric IOL , another 60 cases ( group B) were implanted with the monofocal classic IOL, the AcrySof SA6OAT . Outcomes of uncorrected visual acuity (UCVA), total astigmatism and IOL rotation after 3 months and 6 months follow-up were evaluated respec- tively. Visual acuity of patients in the two groups were analyzed and compared. The lens stability in the cap- sular bag and ways to reduce postoperative astigmatism axis deviation were assessed. Results All the pa- tients had improved visual acuity after surgery. The UCVA after 3 months follow-up was 0.78±0.15 in group A,and 0.53 ±0.11 in group B. The UCVA after 6 months follow-up was 0. 73±0.16 in group A,and 0.51 ± 0. 12 in group B. There were significant differences between the two groups among the follow-up times (P 〈 0.05). The visual acuity of group A patients improved was better than that of group B. The total astigma- tism of group A reduced from 2.07D to 0.67D after 6 months follow-up. There was no significant improve- ment compared with preoperative in group B. The mean rotation of IOL in group A was (3.66±2.81 )°after 3 months follow-up ,and (3.65± 2.74)° after 6 months follow-up. There was no significant difference be- tween the two follow-up times ( P 〉 0.05 ). Conclusion The AcrySof of Toric IOL can significantly reduce postoperative astigmatism. It can make cataract patients with corneal regular astigmatism get a good visualeffects. It has good rotational stability. The reasons for axial astigmatism deviation were closely related to the manipulation of the surgeon.
出处
《中华眼外伤职业眼病杂志》
2012年第7期501-504,共4页
Chinese Journal of Ocular Trauma and Occupational Eye Disease
基金
浙江省金华市科学技术研究计划(2009-3-046)