Lajoie J, Glimois V, Petit T, Amelie R, Varenne F, Fournie P, Pagot Mathis V, Malecaze F, Wargny M, Gallini A, Soler V
Hôpital Purpan, place du Dr Joseph-Baylac, 31300 Toulouse, France.
Hôpital Purpan, place du Dr Joseph-Baylac, 31300 Toulouse, France.
J Fr Ophtalmol. 2018 Oct;41(8):696-707. doi: 10.1016/j.jfo.2018.01.014. Epub 2018 Sep 11.
The goal of our retrospective, single-center study of a case series was to compare the total, corneal, and internal astigmatism, and the visual acuity at one year after combined or stand-alone surgery consisting of iris fixation of an iris-claw intraocular lens (ARTISAN aphakia) in aphakic patients, according to whether the lens was fixated to the anterior (n=21) or posterior (n=51) surface of the iris.
We did not find a significant difference between these two types of fixation for any of the studied variables. The surgically induced astigmatism was 1.67 D at 176° in group A versus 1.19 D at 11° in group P.
Although this surgery creates additional corneal astigmatism, it has not been proven that it differs depending on the type of fixation of the iris-claw. If we adhere to the notion that the posterior fixated iris-claw decreases the risk of endothelial decompensation in case the implant becomes disenclavated, then reverse iris fixation of the iris-claw makes sense.
我们对一系列病例进行的回顾性单中心研究的目的是，根据虹膜爪型人工晶状体（ARTISAN无晶状体眼）在无晶状体患者中固定于虹膜前表面（n = 21）或后表面（n = 51），比较联合手术或单独手术一年后的总散光、角膜散光和内部散光以及视力。
对于任何研究变量，我们未发现这两种固定方式之间存在显著差异。A组在176°处的手术诱导散光为1.67 D，而P组在11°处为1.19 D。
尽管这种手术会产生额外的角膜散光，但尚未证明其因虹膜爪的固定类型而异。如果我们坚持后固定虹膜爪可降低植入物脱位时内皮失代偿风险的观点，那么虹膜爪的反向虹膜固定是有意义的。
