方法：在Topcon KR-1W视觉质量分析仪波前像差引导下，对104例白内障患者按Polar K值分为两组：A组Polar K值<0.5； B组Polar K值>0.5。对两组患者行个性化手术切口，观察患眼术后视觉效果及散光变化。

结果：两组患者的术前和术后3d，1、3mo角膜Polar K比较，差异均有统计学意义(P<0.05)。A组术后3mo角膜Polar K值比术前增加0.25左右； 而B组术后3mo角膜Polar K值比术前减少0.3左右。两组患者术后视力均有提升，差异有统计学意义(P<0.05)。

结论：在Topcon KR-1W视觉质量分析仪波前像差引导下，个性化手术切口对于角膜Polar K>0.5患眼有部分散光矫正作用，但对于角膜Polar K<0.5患眼不但无矫正作用，还增加术后角膜Polar K值0.25左右。

METHODS:We collected 104 cases with cataract and divided them into group A(69 eyes)and group B(35 eyes). Detected by TOPCON KR-1W, the corneal Polar K of the group A was <0.5 and that of the B group was >0.5. The postoperative changes of visual acuity and corneal astigmatism between two groups were observed.

RESULTS:Between the two groups, the differences of Polar K before and after surgeries at 3d, 1 and 3mo were significant(P<0.05). The Polar K of group A increased by 0.25 at 3mo after surgeries and that of group B decreased by 0.3. The visual acuity of both groups improved, and the difference was significant(P<0.05).

CONCLUSION:Individualized incision guided by Topcon KR-1W has certain correction effect for eyes with Polar K>0.5. For eyes with Polar K<0.5, there is less correction effect but raising the Polar K by 0.25.