散光矫正型多焦点与单焦点人工晶状体植入术的效果对比

目的：比较并分析散光矫正型多焦点IOL与单焦点IOL植入术后早中期的临床效果差异。
　　方法：老年性白内障患者行超声乳化IOL植入术34例40眼,其中A组植入散光矫正型多焦点IOL者18例20眼；B组植入散光矫正型单焦点IOL者16例20眼,观察两组患者术后1 mo和6 mo的裸眼远视力、最佳矫正远视力、裸眼近视力、最佳矫正近视力、总眼球散光及术后6 mo时暗光下对比敏感度。
　　结果：两组患者的裸眼远视力、最佳矫正远视力及最佳矫正近视力差异均无统计学意义(P>0.05)。裸眼近视力差异具有统计学意义(P<0.05)。术后总眼球散光1mo时A组为0.65±0.25D,B组为0.52±0.27D,两组比较差异无统计学意义(P>0.05)；6mo时A组为0.54±0.23D,B组为0.45±0.20D,两组比较差异亦无统计学意义( P>0.05)。6mo时暗光下对比敏感度及眩光对比敏感度两组比较在高频率差异具有统计学意义(P>0.05)。
　　结论：散光矫正型多焦点人工晶状体使具有较大角膜散光的白内障患者术后早期获得良好的、稳定的裸眼远、近视力,并且获得良好的视觉质量。

Comparison of clinical outcomes after implantation of toric multifocal and monofocal intraocular lens

AIM: To compare the clinical outcomes after implantation of toric multifocal and monofocal intraocular lens(IOL)after phacoemulsification.

METHODS: A total 34 patients(40 eyes)were recruited for this study. All the patients were diagnosed as age-related cataract and implanted toric multifocal or monofocal IOL after phacoemulsification. All the patients were divided into two groups: patients in group A were implanted with Acrysof IQ Toric ReSTOR+3D IOL(18 cases, 20 eyes); those in group B received Acrysof IQ Toric IOL implantation(16 cases, 20 eyes). The uncorrected and best corrected distance visual acuity(UCDVA and BCDVA), uncorrected and best corrected near visual acuity(UCNVA and BCNVA), residual astigmatism 1, 6mo postoperative and contrast sensitivity with and without glare was measured 6mo postoperative.

RESULTS: There were no statistically significant differences in UCDVA, BCDVA and DCNVA(P>0.05), but UCNVA was statistically significant difference between the two groups at 1 and 6mo after surgery(P<0.05); At 1mo after surgery, the whole residual astigmatism in group A was 0.65±0.25D, while 0.52±0.27D in group B, and no significant difference was found between the two groups(P>0.05). The same result was also found at 6mo postoperative 0.54±0.23D vs 0.40±0.20D(P>0.05). After 6mo, contrast sensitivity with and without glare were significant differences between the two groups at high spatial frequencies(P>0.05).

CONCLUSION: Acrysof IQ Toric ReSTOR+3D IOL provides better distance and near vision for cataract patients with greater corneal astigmatism and obviously improves visual quality at the early postoperative period.