Menapace R, Amon M, Papapanos P, Radax U
First University Eye Hospital, Vienna, Austria.
J Cataract Refract Surg. 1994 May;20(3):299-309. doi: 10.1016/s0886-3350(13)80582-2.
We evaluated the performance of the PhacoFlex silicone lens with open polypropylene loops and the disposable Prodigy inserter in a series of 100 consecutive no-stitch cases. Loading the lens into the PRO-1A inserter model was easy, as was inserting it through a 4 x 4 mm self-sealing sclerocorneal tunnel incision. If the chamber was deep and the capsular fornix expanded, unfolding the polypropylene loops was safe and direct bag placement was always possible. If the capsular bag was insufficiently distended, however, the posterior loop tended to entangle with wrinkles in the posterior capsule, jeopardizing the capsule's integrity. With a round and well-centered 4 mm to 5 mm capsulorhexis, centration was good provided the lens was completely within the bag. Even with proper bag placement of the haptics, however, the optic occasionally decentered slightly and tilted because of secondary capture in the capsulorhexis opening. With an incomplete capsulorhexis or a jagged-edged capsulotomy, malpositioning was not uncommon. This was due to secondary displacement of one haptic into the sulcus or partial capture of the optic by the anterior capsule leaf. Because of the flexibility of the polypropylene loops, the lenses tended to decenter and tilt following capsular shrinkage.
我们在连续100例无缝线病例系列中评估了带有开放式聚丙烯袢的PhacoFlex硅胶人工晶状体和一次性Prodigy植入器的性能。将人工晶状体装入PRO - 1A植入器型号很容易,通过4×4mm自闭式巩膜隧道切口插入也很容易。如果前房深且囊袋穹窿扩张,展开聚丙烯袢是安全的,并且总是可以直接将人工晶状体植入囊袋。然而,如果囊袋扩张不足,后袢往往会与后囊膜的皱襞纠缠在一起,危及囊膜的完整性。对于直径4mm至5mm的圆形且居中良好的连续环形撕囊,只要人工晶状体完全位于囊袋内,居中情况就良好。然而,即使袢在囊袋内放置合适,由于在连续环形撕囊开口处的二次捕获,光学部偶尔也会稍有偏心和倾斜。如果连续环形撕囊不完全或囊膜切开边缘参差不齐,人工晶状体位置异常并不罕见。这是由于一个袢继发性移位到睫状沟或光学部被前囊膜瓣部分捕获所致。由于聚丙烯袢的柔韧性,人工晶状体在囊膜收缩后往往会偏心和倾斜。