兔眼后房型人工晶体前膜的超微结构

应用透射电镜对５只兔眼后房型人工晶体前膜的超微结构进行了研究，结果发现前膜中有巨噬细胞、成纤维细胞样细胞、异物巨细胞、超大巨细胞和大量胶原纤维，膜内这些细胞均具有巨噬细胞本来特征，如胸质微丝、溶酶体及多泡体都较丰富。认为后房型人工晶体前膜形成主要是由于眼内人工晶体的异物反应所致。     

有晶体眼后房型人工晶体植入术

有晶体眼后房型人工晶体植入是近年来发展起来的矫正中度和高度近视或远视的一项新技术,它具有矫正效率高,效果好,预测笥好,可逆性,保留功能和对角膜内皮损伤小的特点。随着人工晶体的改良和临床经验的积累,手术并发症也在逐渐减少。本文对该手术的人工设计,手术适应证与禁忌证,术前准备,手术技术,并发症及其防治等方面进行了综述。     

前房型人工晶体植入术后对房角结构及房水流畅系数影响

目的：了解前房型人工晶体植入术后对眼压、房角及房水流畅系数的影响情况。方法：追踪观察５０眼植入ＡＣ－ＩＯＬ术前、术后眼压、房角、房水浪畅系数的变化,眼部着重检查房角,采用Ｃｏｌｄｍａｎｎ房角镜。随访期为３～１２个月,平均１０．５个月。白内障类型以外伤性及老年性为主。结果：术后房角粘连发生率７０％,垂直轴向虹膜根部固定的人工晶体眼易发生房角粘连。有青光眼病史者术后易出现眼压升高。结论：新型弹性开襻式     

后房型人工晶体脱位

后房型人工晶体脱位是现代白内障囊外出联合后房型人工晶体植入术后较常见的并发症之一。本综合近年有关献，对这一半发症的临床表现，发生机理，不同情况下的处理原则及手术方法进行综述；并对有关手术的并发症及预防后房型人工晶体位的方法进行讨论。     

无晶体后囊膜眼后房型人工晶体缝线固定术临床观察

应用缝线固定后房型人工晶体,弥补因医源性或外伤等造成的无晶体后囊膜眼不能植入人工晶体之缺陷,是近年来国内开展的一种新型手术。我们自1991年11月开始,选择8例单眼患者施行后房型人工晶体缝线固定本,经1月至半年的观察,效果满意。现报告如下: 对象及方法 8例均为单眼白内障,其中外伤性白内障5眼,老年性白内障1眼,并发性白内障2眼,均为男性。年龄最小14岁,最大62岁,8眼中外     

后房型人工晶体单线固定术

一期后房型限内人工晶体植入术中如意外地发生后囊膜破裂、晶体小带撕裂或玻璃体脱出以及某些外伤性白内障或晶体脱位术后仍可植入后房型眼内人工晶体，但为使人工晶体安全稳固地到位，常需固定术［‘－‘］。1991年以来，我们应用本文介绍的单线固定技术，为24例外伤性白内障、白内障术后无晶体眼及外伤性晶体脱位患者做了巩膜一睫状沟后房型人工晶体固定术，收到了较好的效果。对象和方法一、对象24例中男18例，女6例，年龄13～48岁。24眼中23眼有程度不等的玻璃体脱出。虹膜完整18眼，虹膜缺损6眼。白内障继发闭角型青光眼1眼。Th期值入…     

后房型人工晶体植入术临床探讨

囊外摘除和人工晶体植入是现代白内障治疗的主要方法,已广泛应用于眼科临床,成为白内障患者复明的主要手段.我院1989年9月～1994年10月共进行270例300眼白内障摘除后房型人工晶体植入,效果满意,报告如下.临床资料各类白内障270例共300眼,其中男122例,女178例,年龄24～90岁.老年性白内障287眼,外伤性5眼,先天性2眼,并发性6眼,同时伴有其它眼病16眼,内中糖尿病性视网膜病变4眼,青光眼手术后2眼,高度近视5眼,穿孔伤修复术后4眼,钝挫伤后1眼.术前视力光感～0.2.     

兔角膜穿孔后房水内丙二醛的测定

兔角膜穿孔伤后,房水中丙二醛含量与正常相比显著增高,P<0.001。提示前房内发生了脂质过氧化反应。这一发现有助于对眼前节炎症反应的进一步认识。     

兔角膜穿孔伤后房水化学发光测定

兔角膜穿孔伤后,房水中化学发光峰值和平均积分值与正常值相比显著增高(P<0.01)。提示眼前节创伤性炎症有自由基参与。这一发现加深了对眼前节创伤性炎症发病机理的认识,并有利于指导临床治疗。     

巩膜固定法植入后房型人工晶体

对16例无后囊膜支持病例,用巩膜固定技术,植入后房型人工晶体。全部病例平均追踪10.6月(最短4月,最长20月)。16眼中有6眼矫正视力达1.0以上,4眼视力为0.6～0.9,4眼视力0.3～0.5,另两眼视力为0.1～0.2,无严重并发症如人工晶体脱位、青光眼、网膜脱离、迟发性囊样黄斑水肿等。结果表明本技术安全有效有前途,但仍需持续观察,对长期效果作出评价。     

有晶状体眼后房型人工晶状体植入矫正中低度近视的临床效果

目的：分析中央孔型有晶状体眼后房型人工晶状体（ICL）植入矫正中低度近视的短期有效性、安全性和稳定性。方法：回顾性队列研究。连续纳入2020年7—12月在成都爱尔眼科医院植入V4c ICL晶状体的低度近视患者490例（707眼）,均完成术后6个月随访,术前及术后1、3、6个月测量裸眼视力、矫正视力、眼压、拱高和角膜内皮细胞计数,并计算手术安全性、有效性、预测性以及稳定性。术前、术后数据采用配对t检验进行统计分析。结果：随访至术后6个月,患者裸眼视力（-0.076±0.079）LogMAR,手术有效性指数为1.26±0.21,最佳矫正视力（-0.079±0.080）LogMAR,安全指数为1.13±0.18。术后屈光度在±0.5 D以内的占比94.9%,可预测性为99.1%;等效球镜度在术后1个月为（-0.063±0.135）D,术后6个月为（-0.071±0.126）D;角膜内皮细胞计数术前（3 078±258）个/mm2,术后6个月为（2 953±206）个/mm2,损失率为（1.05±0.39）%。术后1个月拱高为（498±143）μm,术后6个月为（474±177）μm。ICL更换比例为1.4%。术后未出现严重威胁视力的并发症。结论：ICL 植入术（中央孔型,V4c ICL）矫正中低度近视具备良好的效果,手术安全、可靠,且预测性高,患者视力稳定。     

New Management of Angle—closure Glaucoma by Phacoemulsification with Foldable Posterior Chamber Intraocular Lens Implantation

Objective: To investigate the management oi angle-closure glaucoma byphacoemulsification with foldable posterior chamber intraocular lens (PC-IOL)implantation.Design: Retrospective, noncontrolled interventional case series.Participants: In 36 eyes with angle-closure glaucoma (ACG) , there were 18 eyes withprimary acute angle-closure glaucoma (PACG) , 14 eyes with primary chronicangle-closure glaucoma (PCCG) , 3 eyes with secondary acute angle-closure glaucoma(SACG) and 1 eye with secondary chronic angle-closure glaucoma (SCCG).Intervention: Phacoemulsification with posterior chamber intraocular lens implantation.Main Outcome Measures: Postoperative visual acuity, IOP, axial anterior chamberdepth.Results: After a mean postoperative follow-up time of 8. 81±7. 45 months, intraocularpressure was reduced from a preoperative mean of 23. 81 ±17. 84 mmHg to apostoperative mean of 12. 54 4. 73 mmHg ( P =0. 001). Mean anterior chamber depthwas 1. 75 ± 0. 48 mm preoperatively and 2. 29 ?0. 38 mm postoperatively     

New Management of Malignant Glaucoma by Phacoemulsification with Posterior Chamber Foldable Intraocular Lens Implantation

Objective: To investigate the feasibility of phacoemulsification with posterior chamber foldable intraocular lens implantation in the management of malignant glaucoma. Patients and Methods: Fourteen patients with malignant glaucoma diagnosed in the Department of Glaucoma were enrolled in the study. 12 patients developed malignant glaucoma after filtration surgery. 1 developed after peripheral iridectomy. 1 patient developed malignant glaucoma without any clear cause. Cataract phacoemulsification was performed. Posterior chamber intraocular foldable lens was implanted in 10 cases of patients.Results: All 14 patients were cured with normal intraocular pressure, normal anterior chamber depth and increased visual acuity.Conclusion: Phacoemulsification with posterior chamber foldable intraocular lens implantation is a good alternative in treating malignant glaucoma. Eye Science 1999; 15: 162 - 168.     

Endothelial Cell Density after Posterior Chamber Lens Implantation

Endothelial cell loss was determined by specular microscopy in 50 patients after extracapsular cataract extraction and posterior chamber lens implantation. An age-matched group of unoperated fellow eyes and normal phakic eyes comprised the control group. For this series, 14.7% of the central corneal endothelial cells were lost as a result of cataract surgery and lens implantation. These patients are the first group to receive a Shearing lens implant.     

Membrane Formation on the Surface of Implanted Posterior Chamber Intraocular Lenses

Purpose: To study the prevention and treatment of the membrane formation on the lens surface after extracapsular cataract extraction (ECCE) with posterior chamber intraocular lens (PCIOL) implantation.Methods: We reviewed the records of 312 cataractous patients that had undergone ECCE with PCIOL implantation between 1989 and 1993. Postoperatively all pa-tients were examined under slit-lamp microscopy. The membrane formation on the surface of PCIOL in pupilar area was divided into four grades. Two membranes of surgical removal were observed under a transmission electron microscopy. One PCIOL of surgical removal was observed under a scanning electron microscopy.Results: Of 312 patients, 21 had the membrane formation on the surface of the PCIOL postoperatively. The incidence of the membrane formation was 6. 7%. Comparisons with cases of senile cataract showed the incidence to be significantly the highest among; 1. patients who had traumatic cataract (P<0. 05); 2. patients with complicated cataract (P<0. 05     

Primary Posterior Chamber Intraocular Lens Implantation in Traumatic Cataract With Posterior Capsule Breaks

Background: In patients with incomplete posterior capsule support, posterior chamber intraocular lenses (PC-IOLs) were implanted with both haptics transs-cleral fixation. This causes more damage to the eye and may result in more complications. In patients with small posterior breaks, non-fixation or single haptic fixation may be adequate.Methods: Thirty-two consecutive patients of traumatic cataract with posterior capsule breaks caused by penetrating eye trauma were retrospected. Posterior chamber intraocular lenses were implanted in all these patients with three techniques, ie, without fixation, with single haptic fixation and with both haptics fixation. The selection of the technique was based on the position and size of the posterior capsule. The follow-up period was 21 days to 28 months (mean, 15. 2 months).Results: Intra-operative problems included ciliary body bleeding ( two patients, 6. 25% ) and enlargement of posterior capsule breaks (2 patients, 6. 25%). Postoperative visual acuity was 0. 5 or