目的：比较双焦点人工晶状体(AtLisa tri 809MP)与三焦点人工晶状体(AtLisa tri 839MP)植入术后矫正老视疗效的差异。

方法：纳入于我院行白内障超声乳化吸除联合人工晶状体植入术的患者共40例51眼进行分析，其中A组20例25眼植入809MP双焦点人工晶状体，B组20例26眼植入839MP三焦点人工晶状体。收集两组患者术后3mo时远中近视力数值、离焦曲线分析，并通过满意度调查问卷进行统计分析。

结果：术后3mo两组裸眼远视力与最佳矫正视力均无差异(P>0.05)； 中距离视力(80cm)B组显著优于A组(P<0.01)； 近距离视力改善程度A组、B组无差异(P>0.05)。术后3mo离焦曲线结果A组在0、-3D处形成2个波峰； B组在0、-2.5D处形成2个波峰； 两组患者术后均有不同程度的眩光、光晕等表现，但总体满意度较高，视近满意度较高。

结论：两种类型人工晶状体均可以为患者提供兼顾远、近的全程视力，术后近距离视物脱镜率高，均可提高良好的近距离视力，三焦点人工晶状体中距离视力更好。

METHOD:A total of 40 patients(51 eyes)who underwent cataract phacomulsification surgery in our hospital were collected, and they were retrospectively analyzed and divided into group A and group B. The group A with 20 patients(25 eyes)implanted the bifocal 809MP IOL, while the group B with 20 patients(26 eyes)implanted the trifocal 839MP IOL. The uncorrected distance visual acuity(UDVA), uncorrected intermediate distance visual acuity(UIVA), uncorrected near distance visual acuity(UNVA), and the defocus curve of the patients in two groups were measured at 3mo after surgery. Additionally, statistical analysis was carried out through satisfaction questionnaire.

RESULT:There were no significant differences in the UDVA and best corrected visual acuity(BCVA)between the two groups at 3mo after surgery(P>0.05). In group B, the UIVA(80cm)was significantly better than that in group A(P<0.01); there was no statistically significant differences in the UNVA of group A and B(P>0.05). The defocus curve analysis at 3mo after surgery revealed that the group A had double peaks at 0D and -3D; while the group B had double peaks at 0D and -2.5D. Patients in the two groups showed different degrees of halo, glare and other optical manifestation, but the overall satisfactions and the near vision satisfactions were higher.

CONCLUSION: Two types of IOL can provide patients with full range of vision that including both near and far distance visual acuity. Both of the AtLisa tri 839MP IOL and 809MP IOL can provide good near vision, while the trifocal IOL is more suitable for intermediate distance vision.