用于近视的虹膜固定前房型有晶状体眼人工晶状体在散瞳时向后移动。
Iris-fixated anterior chamber phakic intraocular lens for myopia moves posteriorly with mydriasis.
作者信息
Cruysberg Lars P J, Doors Muriel, Berendschot Tos T J M, De Brabander John, Webers Carroll A B, Nuijts Rudy M M A
机构信息
Department of Ophthalmology, University Eye Center, Maastricht, The Netherlands.
出版信息
J Refract Surg. 2009 Apr;25(4):394-6. doi: 10.3928/1081597X-20090401-11.
PURPOSE
To elucidate the physiological characteristics of eyes implanted with iris-fixated anterior chamber phakic intraocular lenses (pIOLs), which are increasingly being used for the correction of higher myopic and hyperopic refractive errors.
METHODS
In a case series of 20 patients (39 eyes), the position of the pIOL to the natural lens and the cornea was evaluated under photopic (135 lux) and low mesopic (< 1 lux) circumstances with anterior segment optical coherence tomography.
RESULTS
The distance between the pIOL and the natural lens decreased, and congruently, the distance from the pIOL to the corneal endothelium increased under low mesopic circumstances.
CONCLUSIONS
The distance between the pIOL and the corneal endothelium increases when the pupil dilates under dark circumstances, contributing to the already excellent safety data available on pIOL implantation.
目的
阐明植入虹膜固定型前房有晶状体眼人工晶状体（pIOL）的眼睛的生理特征，这种人工晶状体越来越多地用于矫正高度近视和远视屈光不正。
方法
在一个包含20例患者（39只眼）的病例系列中，使用眼前节光学相干断层扫描在明视（135勒克斯）和低中视（<1勒克斯）环境下评估pIOL相对于自然晶状体和角膜的位置。
结果
在低中视环境下，pIOL与自然晶状体之间的距离减小，相应地，pIOL与角膜内皮之间的距离增加。
结论
在黑暗环境下瞳孔扩张时，pIOL与角膜内皮之间的距离增加，这有助于已有关于pIOL植入的出色安全性数据。
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