人工晶体植入后发障二期截囊

本文报告人工晶体植入后二期截囊２２例（２２只眼），随访２－２４个月，视力由０．１增至１．０者４例，０．８者２级，０．７及０．４者各１例，由０．１２增至１．０者５例，０．９者１例，０．８及０．６者各２例，由０．２增至１．０者１例，０．８者２例，０．６者１例，重点介绍了后囊切开的体会，术中注意事项，术后处理，并讨论ＹＡＧ激光截囊的利弊。     

外伤性白内障后囊破损后房型人工晶状体植入

目的 探讨外伤性白内障后囊破损能否植入后房型人工晶状体。方法 对３４例晶状体后囊破裂外伤性白内障,利用残余后、前囊为依托行后房型人工晶状植入术。结果 随访３～１７月。３４例均未出现明显的并发症,矫正视力≥０．５者２８眼占８２％,０．１～０．４５眼占１４．７％,０．０５１眼。经用Ｐｕｒｋｉｎｊｅ法检测,其偏心、倾斜与常规手术无明显差别。结论 外伤性白内障后囊破损后可以植入后房人工晶状体。     

小梁切除与白内障摘出联合手术临床分析

对２８例２９眼青光眼并发白内障于一眼的患者行小梁切除联合白内障囊外摘出术。术后平均眼压２．１６ｋＰａ。明显低于术前眼压５．３６ｋＰａ。术后矫正视力≥０．５者１２眼；０．３－０．４者１０眼，０．１－０．２者５眼。０．１以下者２眼；术后视力差的     

后房型人工晶体巩膜缝线固定术

本研究主要探索白内障囊内摘除术后或白内障囊外伴后囊破损者，采用巩膜缝线固定技术植入后房型人工晶体的临床效果及并发症。２３例（２３眼），１３眼为白内障囊内摘除无晶体眼，１０眼为白内障囊外摘除术后后囊破裂或外伤性白内障后囊不完整，用巩膜缝线固定晶体襻技术植入后房型人工晶体。本组病例随访３－１６个月（平均８．３个月），视力在４．７（０．５）以上者２１眼，５．０（１．０）以上者１３眼，未发现严重手术并发症     

白内障术中玻璃体脱出无缝线植入后房型人工晶状体

目的 探讨白内障囊外摘出术中玻璃体脱出植入后房人工晶状体的简易方法。方法 对１７例（１７眼）采用无缝线法植入后房型人工晶状体。结果 对其中１５例随访５～３６月，矫正视力≥０．５者１２例，≥１．０者４例，０．２～０．５者３例。结论 此法植入后房型人工晶状体，眼内操作少，简单易行，效果良好。     

超声乳化白内障吸除可折叠晶体植入术

目的：探讨比较超声乳化白内障吸除及可折叠晶体植入，超声乳化及非折叠晶体和白内障囊外除（ＥＣＣＥ）三各不同术式术后角膜屈光状态和视力功能恢复的影响。方法：对４５例老年性，并发性白内障施行超声乳化吸除，２０例植入可折叠晶体，２５例植入非折叠晶体，２２例白内障囊外除，人工晶体植入术做为对照组。结果：超声乳化及可折叠晶体组术后１天，１周，角膜散光为１．０２±０．８３和０．８５±０．３７，明显小于非折叠     

高度近视误植高度数人工晶体2例

例１女２０岁自幼双眼视力障碍，３个月前在某院行右眼白内障囊外摘除联合后房型人工晶体植入术（＋２０Ｄ人工晶体）。因术后仍有视力障碍，而来本院就诊。查体全身无异常，视力右０．０８（－１８．０ＤＳ＝０．３），左０．０６不能矫正，双眼无充血，角膜透明，前房清...     

后囊大破孔时后房型人工晶状体植入

目的 探讨白内障术中后囊大破孔时后房型人工晶状体的植入。方法 对３３例３３眼后囊大破孔直径大于６ｍｍ植入后房型人工晶状体。其中破孔约１／３后囊面积１８眼,约１／２后囊面积６眼。所有病例均获有用视力。其中末次随访最佳矫正视力≥０．５者１７眼（５１．５％）,０．３～０．４者１２眼（３６．４％）,０．１～０．２者４眼（１２．１％）。结论 白内障术中后囊大破孔经适当处理后,多数仍可植入后房型人工晶状体,不     

人工晶体植入术后眼压及房水流畅系数的观察

本文对白内障现代囊外摘除伴后房型人工晶体植术４２例（４２眼）的眼压及Ｃ值进行观察，发现术后第１天眼压较术前明显升高（Ｐ〈０．０５）。第七表眼压下降，与术前比较已无显著性差异（Ｐ〉０．０５）。术后第七天Ｃ值较术前略有下降，但无显著差异（Ｐ〉０．０５），表明人工晶体植入对术后的眼压及Ｃ值的影响是暂时的，并对术后高眼压发生的机制进行了探讨，另外，本文还对术应用两种粘弹性物质－１％Ｈｅａｌｏｎ及２％ＨＰＭ     

后囊膜皱褶激光松解术

用Ｎｄ：ＹＡＧ激光对６０例晶体囊外摘除＋人工晶体植入术（ＥＣＣＥ＋ＰＣ－ＩＯＬ）的后囊膜皱褶（ＰＣＦ）做激光囊膜松解术，单脉冲激光能量为０．４－１．０ｍＪ。术后视力增进率达１００％，未发现明显并发症。     

Nd:YAG激光在散大瞳孔后对IOL术后PCO治疗的体会

目的:探讨Nd:YAG激光在散大瞳孔后治疗人工晶状体(IOL)植入术后后发性白内障的方法和效果。方法:应用Nd:YAG激光机对500例后发性白内障行激光后囊切开术。结果:切开术成功率为99.8%,视力增进者97.2%。结论:Nd:YAG激光于散大瞳孔后治疗后发性白内障IOL损伤小、视力提高显著。     

Nd：YAG激光治疗白内障术后囊袋阻滞综合征疗效分析

目的:探讨白内障超声乳化吸出联合人工晶状体植入术后晶状体囊袋阻滞综合征临床特征及Nd:YAG激光治疗方法选择.方法:回顾性分析7例术后晶状体囊袋阻滞综合征临床特征及Nd:YAG激光治疗方法.其中2例术后早期晶状体囊袋阻滞综合征采用Nd:YAG激光前囊膜周边造孔术;4例术后晚期晶状体囊袋阻滞综合征仅晶状体后囊膜混浊、增厚,采用Nd:YAG激光后囊膜切除术;1例术后晚期晶状体囊袋阻滞综合征伴有人工晶状体前、后表面光学部纤维增殖膜,采用Nd:YAG激光人工晶状体前后囊膜切除术后再行晶状体后囊膜切除术.结果:患者7例经Nd:YAG激光治疗后均恢复较好视力,未见严重并发症.结论:根据术后囊袋阻滞综合征临床特征采取相应的Nd:YAG激光治疗安全有效.     

后囊膜皱褶对视力的影响

目的　探讨后囊膜皱褶对视力的影响及防治。方法　选择 4 8例 5 6只眼瞳孔区有透明晶体后囊膜皱褶患者进行检查分析 ,寻找引起皱褶的原因 ,并用YAG进行治疗。结果　晶体后囊膜皱褶由多种原因引起。YAG治疗后视力明显提高 (P <0 0 1)。结论　晶体后囊膜皱褶是影响白内障术后视力恢复的因素之一。YAG治疗可提高视力。     

Nd：YAG激光治疗人工晶体植入后后囊膜混浊的研究

应用Nd:YAG激光治疗白内障囊外摘除和后房人工晶体植入后的后囊膜混浊11例,经治疗视力均有显著提高,未发现并发症。对治疗中激光可能对人工晶体产生的影响进行了讨论,并给出了激光治疗时不损伤晶体的安全激光能量值。     

Exacerbation of granular corneal dystrophy type II (Avellino corneal dystrophy) after LASEK

PURPOSE: To report cases of granular corneal dystrophy type II (Avellino corneal dystrophy) that were exacerbated by uncomplicated laser epithelial keratomileusis (LASEK) for myopia. METHODS: Eight patients (15 eyes) with granular corneal dystrophy type II who underwent LASEK were examined by DNA sequencing, slit-lamp microscopy, and confocal microscopy. RESULTS: The number and density of the opacities increased after LASEK. Best spectacle-corrected visual acuity decreased after LASEK as the density of the opacities increased. In three patients, mitomycin C was used intraoperatively, but corneal deposits also worsened in these patients. CONCLUSIONS: LASEK is contraindicated in patients with granular corneal dystrophy type II because vision may be reduced from an increase in the density of corneal opacities postoperatively.     

晶状体后囊皱褶Nd：YAG激光切开术

目的探讨Nd：YAG激光晶状体后囊皱褶切开术的效果。方法晶状体后囊皱褶33例（33眼）。术前爱尔卡因表麻下置CGP角膜接触镜，借助瞄准光，准确聚焦于皱褶上，发射Nd：YAG激光，单脉冲切开皱褶能量为0．4～1．0mJ，每次治疗总量为20—30mJ，平均（25±0．12）mJ。结果后囊皱褶激光切开术后矫正视力：1．0者22眼占66．67％，0．6—0．8者7眼占21．21％，0．5—0．7者4眼占12．12％。裂隙灯显微镜下观察未发生人工晶状体损伤，无玻璃体疝、黄斑囊样水肿或视网膜脱离等并发症。结论用Nd：YAG激光切开晶状体后囊皱褶，可增进视力，疗效良好。     

Scheimpflug imaging in late Capsular Bag Distention syndrome after phacoemulsification

PURPOSE: To describe two cases of late Capsular Bag Distention syndrome (CBDS) and posterior capsular opacification (PCO) as documented on Pentacam. DESIGN: Case series. METHODS: A 55-year-old male and a 72-year-old female presented three years after phacoemulsification and intraocular lens (IOL) implantation with a complaint of decreased vision. Scheimpflug imaging was done using Pentacam. Patients underwent Nd:YAG capsulotomy for PCO, and postcapsulotomy capsular bag dynamics were imaged on Pentacam. RESULTS: Three years after phacoemulsification, patients presented with blurred vision and posterior bowing of opacified posterior capsule. Anterior capsular opening was apparently sealed by lens optic, and space between IOL and opacified posterior capsule was filled with turbid fluid. Nd:YAG laser capsulotomy was done. All findings, including collapse of distended bag, were precisely documented on Scheimpflug images. CONCLUSIONS: Pentacam Scheimpflug imaging is a useful technique to diagnose and document the presence and progress of CBDS and PCO.     

两种Nd:YAG激光后囊切开方式对不同材料人工晶状体损伤的观察

目的观察Nd:YAG激光后囊膜切开方式对不同材料的人工晶体(IOL)损伤的情况。方法对86例(124只眼)IOL眼晶状体后囊膜混浊(posterior capsule opacity,PCO)患者随机分为两组行Nd:YAG激光后囊膜切开术。A组64眼采用环行切开后推膜瓣法,人工晶体包括:PMMA23眼、疏水性丙烯酸26眼、硅凝胶15眼。B组60眼行十字形切开法,人工晶体包括:PMMA21眼、疏水性丙烯酸25眼、硅凝胶14眼。术前术后常规眼前段检查、测视力、眼压。结果截囊成功率100%。发生IOL损伤16眼,其中A组6眼(9.38%),B组10眼(16.67%),两种方式对相同材料的人工晶体损伤的机率相似(均p>0.05),不同材料的耐受强弱依次为PMMA、疏水性丙烯酸、硅凝胶,均为轻度损伤。结论两种方式对不同材料损伤的机率依次为硅凝胶、疏水性丙烯酸、PMMA,但环行切开后推膜瓣法可以减少Nd:YAG激光后囊膜切开术IOL损伤机率。     

Initial clinical studies with silicone intraocular implants

Initial clinical studies with 117 silicone implants are presented. Techniques of implantation including flat insertion, bar-style folder, and syringe-style inserter are discussed. Visual results were compared with results after polymethylmethacrylate (PMMA) lens implantation and were equal if not better. Eliminating patients with preoperative pathology, best corrected visual results of 20/40 or better occurred in 96% of eyes with silicone implants and 88% with PMMA implants. Complications included "Z" dislocations because of inadvertent haptic placement in the bag and one case of severe uveitis and common transient pigment in the anterior chamber. In 37.5% of cases, posterior capsular opacities significant enough to require YAG laser capsulotomy occurred.     

New applications of the neodymium: yttrium aluminum garnet laser in the Q-switched mode: experimental results.

We describe the interaction of the neodymium: yttrium aluminum garnet (Nd:YAG) laser energy with intraocular lenses using the laser in the Q-switched mode. Using this method, it is possible to treat opacities that eventually might occur at the level of the visual axis on the optic faces of polymethylmethacrylate intraocular lenses (IOLs) if safety parameters (perfect focusing, use of additional lenses, and slight and continuous movement of the focal point of the laser) are followed. However, it is not possible to treat the silicone IOLs with the Nd:YAG laser because the threshold values for damage to the IOL are lower than the energy values required for destroying the capsular opacities on the optic axis.