可调节人工晶状体矫治老视的效果

目的探讨可调节人工晶状体矫治老视的可行性。方法均为要求阅读时不配戴凸透镜的老视患者，同时伴有不同程度的晶状体浑浊，共31例（62只眼）。均常规行白内障超声乳化吸出联合囊袋内植入后房型Tetraflex可调节人工晶状体。记录术后裸眼远视力、裸眼近视力、矫正远视力下的近视力、调节幅度、脱镜率、满意度等。术后随访6个月，并与植入Akros单焦点人工晶状体30例（60只眼）进行比较。结果在随访期内，术后3个月两组的裸眼远视力无统计学差异（t=0．366，P〉0．05），两组的裸眼近视力和矫正远视力下的近视力均有统计学差异（t=10．074，t=9．966，P〈0．05）。术后1周、3个月、6个月的调节幅度，两组之间均有统计学差异（t=28．875，t=31．007，t=30．227，P〈0．05）。术后6个月视近时的脱镜率和对疗效的满意度，两组之间均有统计学差异（Z=-4．901，Z=-5．974，Z=-9．282，P〈0．05）。结论Tetranex可调节人工晶状体具有一定的调节能力，可以为患者提供良好的近视力，同时术后远视力和中距离视力也有所改善。

The effect of accommodative intraocular lens for correction of presbyopia

Objective To discuss the feasibility of Tetrafiex accommodative intraocular lens for correction of presbyopia. Methods 62 eyes of 31 presbyopia patients with different degree of lens opacity, who required spectacle-independence, underwent phacoemulsifieation with Tetraflex IOL implantation. The uncorrected distance visual acuity （UCDVA）, the uncorrected near visual acuity （UCNVA） , the best distance-corrected near visual acuity（BCNVA） , the accommodative amplitude, the rate of spectacle-independ- ence, the degree of satisfaction were observed postoperatively. The patients were followed up for 6 months, compared with Akros monofocal IOL （30 cases 60 eyes）. Results There were no statistically significant differences in UCDVA between the two groups 3 months postoperatively （t = 0. 366 ,P 〉 0.05 ） , while there were statistically significant differences in UCNVA and BCNVA （ t = 10. 074, t = 9. 966, P 〈 0.05 ）. Tet- raflex IOL provided excellent accommodative amplitude than monofocal IOL at 1 week, 3 months and 6 months after surgery （t = 28. 875, t = 31. 007, t = 30. 227, P 〈 0.05 ） , and also the rate of spectacle-inde- pendence and the degree of satisfaction （ Z = - 4. 901 ,Z = - 5. 974, Z = - 9. 282, P 〈 0.05 ）. Conclusion Tetraflex IOL showed greater accommodative amplitude and better near visual acuity. Meanwhile, Tetraflex IOL can provide distance and middle visual acuity to some extent.