Visual and accommodative outcomes 1 year after implantation of an accommodating intraocular lens based on a new concept
Visual and accommodative outcomes 1 year after implantation of an accommodating intraocular lens based on a new concept
复制标题
DOI：
10.1016/j.jcrs.2009.04.043
复制
发表时间：
2009-10-01
影响因子：
2.8
通讯作者：
Plaza, Ana B.
中科院分区：
文献类型：
--
作者：
Alio, Jorge L.;Ben-nun, Joshua;Plaza, Ana B.
目得：评价Nu透镜可调节人工透镜（IOL）植入后1年的视力结果和矫正增益。阿利坎特，西班牙。方法：本研究包括白内障和萎缩性黄斑变性患者。在每例患者中，在视力较差的眼中植入可调节IOL。在12个月随访访视时，测量视力和调节以确定IOL的有效性。结果：10例10眼均获得满意疗效。患者的平均阅读行数从术前的1.0行增加到术后6个月的3.8行，表明IOL植入后裸眼近视力有所改善。1个月时IOL横截面测量值的平均变化为0.06 mm;该值在3个月时达到峰值（0.21 mm），之后稳定下降，在9个月时变得稳定（0.09 mm，相当于10.00屈光度[D]的调节）。12个月时矫正近视力略有改善（0.7 Jaeger线），最佳阅读距离为10 cm。这些结果表明，近视力和远视力大致相等，因此，人工晶状体可产生10.00 D的调节。结论：人工晶状体的调节机制可产生10.00 D的屈光力变化。近视力改善，而不影响远视力。
PURPOSE: To evaluate visual outcomes and accommodative gains 1 year after implantation of the NuLens accommodating intraocular lens (IOL).SETTING: Department of Refractive Surgery, Vissum Corp., Alicante, Spain.METHODS: This study comprised patients with cataract and atrophic macular degeneration. In each patient, the accommodating IOL was implanted in the eye with the worse visual acuity. At the 12-month follow-up visit, visual acuity and accommodation were measured to determine the efficacy of the IOL. Ultrasound biomicroscopy was used to measure accommodative amplitude.RESULTS: Ten eyes of 10 patients were evaluated. The mean number of lines patients could read increased from 1.0 preoperatively to 3.8 lines 6 months postoperatively, indicating improvement in uncorrected near visual acuity after IOL implantation. The mean change in cross-section measurements of the IOL was 0.06 mm at 1 month; the value peaked at 3 months (0.21 mm), after which it decreased steadily, becoming stable at 9 months (0.09 mm, which is equivalent to 10.00 diopters [D] of accommodation). Corrected near visual acuity improved slightly (0.7 Jaeger lines) at 12 months, with the best reading distance at 10 cm. These results suggest that the near and distance visual acuities were approximately equal and, therefore, the IOL can produce accommodation of 10.00 D.CONCLUSIONS: The accommodation mechanism of the IOL can produce an ocular power variation of 10.00 D. Near visual acuity improved without compromising distance visual acuity.