Davison J A
Wolfe Clinic, Marshalltown, Iowa 50158.
J Cataract Refract Surg. 1993 Sep;19(5):582-9. doi: 10.1016/s0886-3350(13)80004-1.
Capsule contraction syndrome is an exaggerated reduction in anterior capsulectomy and capsular bag diameter after extracapsular cataract surgery. While rarely seen with can-opener-style capsulectomies with anterior radial capsular tears, it is relatively frequent with capsulorhexis. It is particularly common in patients with pseudoexfoliation and in eyes with a history of moderately severe uveitis. Its effects, which include extreme reduction in the capsulectomy opening, malposition of the opening, reduction in equatorial capsular diameter, and displacement of the IOL, seem more exaggerated in small capsulorhexis openings and in the older patient. Neodymium: YAG laser radial anterior relaxing capsulotomies done within three weeks of cataract surgery reduce the sphincter effect of the contraction and lessen the chronic zonular-traction-related complications of the condition, which may include spontaneous IOL dislocation and retinal detachment.
囊袋收缩综合征是指白内障囊外摘除术后前囊膜切除范围及囊袋直径过度缩小。虽然在采用开罐式囊膜切开术且伴有前囊膜放射状撕裂时很少见，但在连续环形撕囊时相对常见。在假性剥脱综合征患者以及有中度至重度葡萄膜炎病史的眼中尤为常见。其影响包括囊膜切开开口极度缩小、开口位置异常、赤道部囊膜直径减小以及人工晶状体移位，在小的连续环形撕囊开口和老年患者中似乎更为明显。在白内障手术后三周内进行钕:钇铝石榴石激光放射状前囊膜松解切开术可减轻收缩的括约肌效应，并减少该病症与慢性悬韧带牵引相关的并发症，这些并发症可能包括人工晶状体自发脱位和视网膜脱离。
