Moorfields Eye Hospital, London, United Kingdom.
J Cataract Refract Surg. 2010 Jan;36(1):161-3. doi: 10.1016/j.jcrs.2009.06.042.
Two cases that developed a delayed hyperopic shift in refraction following implantation of a single-piece hydrophilic intraocular lens (IOL) are described. The haptics of the Akreos Adapt IOL were flexed anteriorly by capsular contraction, leaving a marked gap between the optic and the anterior capsule. A third case that had marked capsule phimosis and similar anterior flexion of the haptics but with a stable refraction is also described. In this case, the anterior and posterior leaves of the capsule fused peripherally and the IOL optic position was normal. The effective power of an IOL depends on the distance between the apex of the cornea and the center of the optic. Capsule contraction without fusion of the peripheral capsule can make the haptics of this IOL design flex anteriorly with posterior movement of the optic and a hyperopic shift in refraction.
No author has a financial or proprietary interest in any material or method mentioned.
描述了两例在植入单件亲水人工晶状体（IOL）后出现折射延迟远视漂移的病例。Akreos Adapt IOL 的襻在前部被囊收缩向前弯曲，在光学区和前囊之间留下明显的间隙。还描述了第三例病例，其具有明显的囊膜收缩和类似的襻向前弯曲，但折射稳定。在这种情况下，囊的前叶和后叶在周边融合，IOL 光学区位置正常。IOL 的有效力取决于角膜顶点和光学区中心之间的距离。没有周边囊融合的囊收缩会使这种 IOL 设计的襻向前弯曲，同时光学区向后移动，导致折射远视漂移。
