非球面人工晶状体植入术后早期视功能的临床研究

目的：初步评估非球面人工晶状体植入术后早期视功能情况。 方法：将88例（91只眼）白内障患者随机分为AcrySof IQ（SN60WF）、KS-3Ai和AcrySof Natural（SN60AT）人工晶状体组。观察患者术后1d、1周和1月最佳矫正视力和术后1月对比敏感度及主观视觉等视功能情况。 结果：术后第1天KS-3Ai组最佳矫正视力明显优于其余两组（P〈0．05），术后1周、1月三组最佳矫正视力差异均无显著性意义（P〉0．05）。AcrySof IQ和KS-3Ai组中、低频区对比敏感度在瞳孔直径2.5mm～4．0mm及5.0mm～6.0mm时均优于AcrySof Natural组（P〈0．05），而AcrySof IQ和KS-3Ai两组比较无显著性意义（P〉0．05）。采用VF／QOL问卷调查显示AcrySof IQ和KS-3Ai组患者的总体满意度好。 结论：非球面人工晶状体能明显提高白内障患者术后对比敏感度，改善患者术后视觉质量。

The Clinical Investigation of Early Visual Function in Cataract Patients after Implantation with Aspheric Intraocular Lens

PURPOSE: To initially evaluate the early visual function after implantation with aspheric intraocular lens METHODS: Eighty-eight subjects (91 eyes) were divided randomly into three groups: AcrySof IQ (SN60WF) group, KS-3Ai group and AcrySof Natural (SN60AT) group. Best corrected visual acuity was observed 1 day, 1 week and 1 month postoperatively, while contrast sensitivity and subjective vision were observed 1 month later. RESULTS: Best corrected visual acuity was obviously better in KS-3Ai group than in the other groups 1 day postoperatively (P < 0.05), but no significant difference was found 1 week and 1 month later among the groups (P > 0.05). When the pupil diameter was in 2.5 to 4.0 mm and 5.0 to 6.0 mm, AcrySof IQ and KS-3Ai groups were better than the AcrySof Natural group in the low and middle spatial frequency (P < 0.05). However, there was no significant difference between AcrySof IQ and KS-3Ai groups (P > 0.05). VF/QOL questionnaire was obtained, showing that implantation with AcrySof IQ and KS-3Ai satisfied patients preferably. CONCLUSIONS: Aspheric intraocular lens can greatly improve patients' contrast sensitivity and quality of vision.