Tetraflex 可调节人工晶状体的临床应用

目的 评估眼内植入Tetraflex可调节人工晶状体增强远近视力的安全性、有效性.方法 取29例 (30只眼) 老年性白内障患者行超声乳化手术并植入 Tetraflex可调节人工晶状体;另外 26 例 (30只眼) 植入 IQ折叠人工晶状体.观察患者术后的裸眼远近视力、矫正远近视力、最佳矫正远视力下的近视力、调节幅度、手术中及术后并发症.结果 术后6个月,两组的裸眼远视力、矫正远、近视力差异无统计学意义(t =1.667、1.458、1.207,P ＞0.05),Tetraflex组的裸眼近视力和最佳矫正远视力下的近视力好于IQ组(t =2.407,8.667,P ＜ 0.01) .视标推进法测得调节幅度 Tetraflex组 (2.79 ±0.33) D 大于IQ 组(1.42 ±0.25) D (t =15.218,P ＜ 0.001) .结论 Tetraflex可调节人工晶状体是安全有效的,能够在改善患者远视力的同时增强近视力使白内障患者术后获得一定的调节力.

Preliminary clinical study after Tetraflex accommodating intraocular lens implantation

Objective To evaluate the safety and effectiveness of the Tetraflex accommodative intraocular lens (IOL) in providing both enhanced distance and near acuity. Methods Twenty-nine patients (30eyes) with age-related cataract underwent phacoemulsification and were implanted with Tetraflex IOL, while other 26 patients (30 eyes) were implanted with IQ. Prospective data collection included both uncorrected distance visual acuity (UCDVA) and uncorrected near visual acuity (UCNVA) testing, manifest refraction, best-corrected distance visual acuity (BCDVA), distance corrected near visual acuity (DCNVA), and the amplitude of accommodation. Intraoperative and postoperative complications also were reported. Results At 6 months after surgery, the uncorrected distant, corrected distant and corrected near visual acuity had no significant differences between two groups (t =1.667, 1.458, 1.207, P >0.05). The uncorrected near and distance corrected near visual acuity of Tetraflex group were better than IQ (t =2.407, 8.667, P <0.01). The retinoscopic accomodative range was (2.79±0.33)D in IQ group and (1.42±0.25)D in IQ group (t =15.218, P <0.001). Conclusions The Tetraflex accommodating IOL is safe and effective. It provides enhanced near vision with good distance vision 6 months after surgery.