白内障患者波前像差引导下个性化手术切口术后的视力和散光变化

目的：研究波前像差引导下个性化手术切口术后患者的视觉效果及散光变化。
　　方法：在Topcon KR-1 W 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、3lo角膜Polar K比较,差异均有统计学意义(P<0.05)。 A组术后3lo角膜Polar K值比术前增加0.25左右；而B组术后3 lo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-1 W 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。

Changes of visual acuity and astigmatism after cataract surgery with individualized incision guided by wavefront

AIM:To research the changes of visual acuity and astigmatism after cataract surgery with individualized incision guided by wavefront.

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.