激光周边虹膜成形术联合周边虹膜切开术治疗原发性急性闭角型青光眼中期疗效观察

目的回顾性分析激光周边虹膜成形术(laser peripheral iridoplasty,LPIP)联合周边虹膜切开术(laser peripheral iridoto-my,LPID)治疗原发性急性闭角型青光眼急性发作的中期治疗效果。方法原发性急性闭角型青光眼急性发作患者51例(66眼)分为眼压控制组24例(32眼)、眼压未控制组11例(14眼)、门诊组16例(20眼),分别行LPIP及LPID治疗。术后随访12~24个月,平均(15.36±2.61)个月。超声生物显微镜检查房角开放状况,观察控制眼压时间、术后眼压、并发症。结果眼压控制组治疗前后眼压比较,差异无统计学意义(P>0.05)。眼压未控制组和门诊组的眼压在联合手术治疗后能迅速下降,2组术后0.5h、1h、2h的眼压分别为:(22.86±4.66)mmHg、(16.21±2.69)mmHg、(15.43±2.44)mmHg;(31.74±7.41)mm-Hg、(20.79±4.24)mmHg、(18.05±2.17)mmHg;与术前眼压比较,差异具有显著统计学意义(均为P<0.001)。各组随访期间眼压均低于21mmHg(1kPa=7.5mmHg)。术后12个月,眼压未控制组、眼压控制组、门诊组平均眼压分别为(15.59±2.39)mmHg、(16.39±2.89)mmHg、(15.79±2.56)mmHg。超声生物显微镜检查示LPIP术后房角能迅速有效开放,随访期间无周边虹膜前粘连进展。LPIP和LPID治疗后无明显并发症。结论 LPIP能有效开放前房角,迅速降低眼压;联合LPID能安全有效治疗原发性急性闭角型青光眼的急性发作。     

激光周边虹膜成形术治疗青光眼急性发作

目的　评估激光周边虹膜成形术治疗原发性闭角型青光眼急性发作的效果。方法　 2 1眼原发性闭角型青光眼第一次急性发作时以 2 %匹罗卡品、0 5 %噻吗心安滴眼液滴眼 ,立即行激光周边虹膜成形术治疗 ,15、3 0、60、90min后测量眼压。结果　激光周边虹膜成形术后 15min后 ,眼压从 3 9～ 68mmHg ,平均 ( 5 1 5± 9 4)mmHg( 1mmHg =0 13 3kPa) ,下降到 19～ 60mmHg平均 ( 3 6 1± 10 7)mmHg ,平均下降 3 0 % ;术后 3 0min眼压为 11～ 5 0mmHg ,平均 ( 2 9 6± 11 2 )mmHg ,平均下降 42 5 % ;术后 60min眼压 10～ 3 8mmHg ,平均 ( 18 9± 9 6)mmHg ,平均下降 63 3 % ;术后 90min眼压为 8～ 3 8mmHg ,平均 ( 17 1± 10 2 )mmHg ,平均下降 66 8% ;15眼术后 90min眼压≤ 2 1mmHg。结论　激光周边虹膜成形术治疗原发性闭角型青光眼急性发作是有效的。     

激光周边虹膜成形术治疗周边虹膜切除术后的原发性闭角型青光眼

目的 评价激光周边虹膜成形术(LPIP)治疗周边虹膜切除术后眼压失控原发性闭角型青光眼(PACG)的临床效果,进一步探寻原发性闭角型青光眼治疗新思路.方法 回顾性分析激光周边虹膜切开术(LPI)或周边虹膜切除术(SPI)后眼压失控PACG行LPIP治疗患者38例53只眼.观察手术前后眼压、视力、中央前房深度(ACD)、房角开放距离(AOD500)、前房角形态及并发症等.随访12～24月,平均(14.4±7.6)月.结果 术前眼压(24.3±4.2) mm Hg,LPIP术后最末次随访眼压(17.5±6.7) mm Hg,与术前比较平均下降(6.8±2.5)mm Hg,差异具有统计学意义(t=4.15,P＜0.05).ACD:术前(1.97±0.41)mm,LPIP术后1月、6 月、12月分别为(2.01±0.54)mm、(1.99±0.63)mm、(2.05±0.77) mm,与术前比较差异无统计学意义(F=2.90,P=0.08).AOD500:术前(155.3±54.8) μm,LPIP术后1月、6月、12月分别为(259.7±71.3)μm、(263.3±61.5)μm、(264.7±35.8)μm,术后均较术前加深,差异具有统计学意义(F=67.5,P=0.000).术后前房角结构可见范围增加,周边虹膜前粘连范围缩小.术后早期视力无变化,随访时间内视野损害无进展.主要并发症是瞳孔轻度散大.结论 LPIP治疗LPI或SPI术后眼压失控PACG,能明显加深前房角开放距离,有效解除非瞳孔阻滞发病因素,控制眼内压,阻止病情进展.PACG发病因素多种复杂,其治疗不能单纯依据前房角关闭范围采取单一手术,应采取具有针对性个性化治疗方案.     

Nd:YAG激光周边虹膜切开术治疗药物难控制性PACG发作期的疗效

目的:观察Nd∶YAG激光周边虹膜切开术(LPI)治疗药物难控制性原发性闭角型青光眼(PACG)急性发作期患者的疗效。方法:采用前瞻性研究,纳入襄阳市第一人民医院眼科2019-05/2020-06收治的药物难控制性PACG急性发作期患者20例22眼,所有受试对象均行LPI治疗,术前和术后检查患者视力、眼压、房角关闭范围、前房角角度(ACA)、前房容积(ACV)、中央前房深度(CACD)、周边前房深度(PACD)以及并发症。结果:受试对象均可实施LPI。术前房角关闭范围均>180°,术后房角关闭范围≤180°有9眼(41%);21眼(95%)术后眼压与术前相比明显降低(P<0.05);术后前房参数除CACD无明显变化(P>0.05),ACA、ACV、PACD均较术前增加(P<0.05)。术中15眼(68%)发生虹膜小瀑布样或丝样出血,5眼(23%)出现角膜上皮层损伤。结论:LPI在药物难控制性PACG急性发作期可以实施,安全性高,能有效降低眼压,缓解症状,疗效显著。     

原发性闭角型青光眼激光周边虹膜切开术后前房角形态变化的一年观察

目的定量观察原发性闭角型青光眼(PACG)激光周边虹膜切开术(LPI)后前房角形态变化及周边虹膜前粘连(PAS)对LPI术后效果的影响。设计前瞻性病例系列。研究对象河北省邯郸市眼科医院连续的25例(39眼)PACG患者。方法患眼行LPI治疗。术前、术后2周、6个月、12个月时行眼科常规检查及超声生物显微镜(UBM)检查。根据末次随访时眼压情况分为眼压控制不良组(A组)及眼压控制良好组(B组)。各随访时间点的UBM参数进行重复测量的方差分析,组间比较采用配对t检验及Wilcoxon检验。主要指标UBM图像中测量的前房角参数。结果平均随访时间为(386.4±36.7)天。LPI术后2周、6个月及12个月的房角开放距离(AOD)、小梁虹膜夹角(TIA)、虹膜隐窝面积(ARA)较术前增加均有统计学意义(P均<0.001)。小梁睫状突距离(TCPD)术后12个月较术前增加具有统计学意义(P<0.001)。B组AOD500、TIA500、ARA500及TCPD均大于A组(P均<0.05),而PAS钟点范围少于A组(P=0.01)。结论 LPI能显著增宽PACG患者的周边前房角,但PAS的范围对LPI的效果起到明显的制约作用。     

激光周边虹膜成形术的临床观察

通过对３６例５６只原发性急、慢性闭角型青光眼施行倍频Ｎｄ：ＹＡＧ激光周边虹膜成形术后的临床观察，随访１—６月（平均４．２月），结果显示：８０—８３％眼的眼压得到控制，７３．６％眼减少了抗青光眼药物的用量，８３％眼房角增宽，６２．５％眼周边前房深度加深，３７％眼房角粘连范围减轻或重新开放。提示：激光周边虹膜成形术对治疗原发性急性闭角型青光眼发作期的患眼、周边虹膜切除术后眼压控制不理想者、慢性闭角型青光眼早期或房角粘连范围不大者有较大的实用价值。     

联合倍频及Nd：YAG激光周边虹膜切开术

目的 观察联合应用倍频Nd:YAG和Nd:YAG激光对闭角型青光眼进行周边虹膜切开术的效果。方法 对82例（102眼）闭角型青光眼患,用倍频Nd:YAG激光对虹膜作一“蜂巢”状创口,用Nd:YAG激光切透虹膜。结果 联合激光1次虹膜切开成功101眼（99.02%)。术后3月眼压有所下降,并发症有虹膜切口出血2眼;切开孔1月后再闭锁1眼;角膜内皮损伤5眼;术眼均有不同程度虹膜炎,抗炎治疗可吸收,结论 联合激光周边虹膜切开术治疗闭角型青光眼效果确切,并发症发生率低。     

氩激光周边虹膜成形术联合YAG和氩激光周边虹膜切除术治疗原发性闭角型青光眼

我们应用氩激光周边虹膜成形术联合 YAG和氩激光周边虹膜切除术治疗原发性闭角型青光眼取得良好效果 ,现报告如下 :资料与方法 :1998年 9月～ 2 0 0 0年 9月应用氩激光周边虹膜成形术联合 YAG和氩激光周边虹膜切除术治疗原发性闭角型青光眼 42例 5 1眼 ,女性 33例 ,男性 9例 ,年龄 5 3～ 73岁 ,平均 6 4岁。临床前期 38眼 ,间歇期 6眼 ,发作期 3眼 ,慢性闭角型青光眼 4眼。慢性闭角型青光眼作暗室试验。随访观察时间 3个月～ 2 4个月。常规作视力、裂隙灯、房角镜、暗室试验和视野检查。眼压控制标准为停用降眼压药物后眼压≤2 .79k Pa,…     

改良氩激光周边虹膜成形术后前房角的改变

目的 探讨采用改良氩激光周边虹膜成形术后中晚期闭角型青光眼前房角的改变及疗效。方法 对20例34眼前房角关闭270°～360°,虹膜膨隆型及高褶虹膜型的中晚期闭角型青光眼,采用大光斑、低能量的曲线形、斜照、略模糊光斑光凝的改良氩激光周边虹膜成形术式。 结果 术后随访6～24个月,平均10.8 个月,其中1年以上者14例26眼。15例26眼眼压控制≤21 mmHg(76.47％);28眼周边前房加深,房角粘连范闱减轻或重新开放(82.35%) 全部治疗眼的周边虹膜皱缩,堆积现象缓解,并发症少,有效地保护了患者仅存的视功能。结论 改良氩激光周边虹膜成形术是治疗中、晚期闭角型青光眼的有效方法之一     

半导体激光360°虹膜周边成形术联合YAG虹膜周边切开术治疗闭角型青光眼

目的探讨半导体、YAG激光360°虹膜周边成形术联合虹膜周边切除术对闭角型青光眼的疗效。方法对96例151眼闭角型青光眼行半导体激光360°虹膜周边成形术联合YAG虹膜周边切开术。结果激光孔通畅100%,其中治愈115眼,好转34眼,其中3眼需两种以上眼药控制,2眼需行手术治疗。房角开放,周边前房加深,术前术后比较,有显著差异性(P<0.01)。不良反应有术后暂时性眼压升高,术中虹膜出血,角膜灼伤,前部色素炎性反应等。结论联合激光360°虹膜周边成形术及虹膜周边切除术,操作简单。效果确切,并发症少,是治疗闭角型青光眼的理想术式。     

房角关闭机制指导下可疑原发性房角关闭患者激光干预的疗效评价

目的 根据房角关闭的不同机制,对可疑原发性房角关闭（PACS）患者行激光周边虹膜切除（LPI）术或LPI联合激光周边虹膜成形（LPIP）术,通过超声生物显微镜（UBM）评估PACS患者激光早期干预的疗效。设计 前瞻性病例系列。 研究对象2016年1月-11月在河北省邯郸市眼科医院连续就诊的PACS患者50例（65眼）。方法 根据房角关闭的不同机制,通过UBM评估患眼,对所有入选患眼均首先行LPI治疗,术后第3天复查UBM,检查提示仍存在至少一个象限房角呈接触性关闭的患者再进一步联合LPIP治疗。术后3天复查UBM,根据测量的相关参数的前后变化评价治疗效果。主要指标 UBM图像中的中央前房深度（ACD）,巩膜突前500 μm处的房角开放距离（AOD）、小梁虹膜夹角（TIA）、房角隐窝面积（ARA）、小梁睫状体距离（TCPD）、虹膜厚度（IT）。结果 65眼中,47眼（72.3%）行LPI治疗后3天UBM检查未发现存在至少一个象限的房角接触性关闭,术后AOD、TIA、TCPD、ARA较术前均明显增加（P均<0.01）,IT较术前无明显变化（P=0.465）;18眼（27.7%）行LPI术后3天,UBM提示存在至少一个象限的房角接触性关闭,联合LPIP治疗后AOD、TIA、TCPD、ARA较术前均明显增加（P均<0.01）,IT较LPI术后减少更明显（P<0.01）。结论 LPI后UBM可用于判断房角关闭的机制,并据此考虑是否联合LPIP,可进一步改善非单纯性瞳孔阻滞机制的可疑房角关闭患者的疗效。     

Evaluation of the efficacy of laser peripheral iridoplasty in reversing the darkroom provocative test result in Chinese patients with primary angle closure status post laser iridotomy

AIM: To investigate the efficacy and safety of krypton laser peripheral iridoplasty (LPIP) for Chinese patients with primary angle closure (PAC) or primary angle-closure glaucoma (PACG) status post laser iridotomy in reversing the positive results of the dark room provocative test (DRPT).METHODS:This study was prospective, noncomparative, interventional case series. Thirty-three patients (thirty-eight eyes) with PAC or PACG status post patent laser iridotomy and maintained normal intraocular pressure (IOP) but with positive DRPT results were enrolled. All the subjects were treated with krypton LPIP. DRPT was repeated after krypton LPIP. Results of DRPT were recorded. The visual acuity, IOP and gonioscopy were analyzed before and after krypton LPIP. A minimum time limit for follow-up was 6mo.RESULTS:Thirty-three patients (thirty-eight eyes) were followed for 17.7±8.37mo (range 7-41mo) after LPIP. Positive results of DRPT decreased from 38 eyes to 9 eyes (23.7%) after LPIP. Peripheral anterior synechiae of angle in 34 of 38 eyes (89.5%) remained unchanged at dynamic gonioscopy throughout the follow-up period after LPIP.CONCLUSION:LPIP decreased positive rates of the DRPT significantly. The mechanism may be that LPIP minimized contact between the peripheral iris and trabecular meshwork, which is a key factor for developing peripheral anterior synechiae.     

Laser peripheral iridotomy with iridoplasty in primary angle closure suspect: anterior chamber analysis by pentacam

Purpose

To compare conventional laser peripheral iridotomy (LPI) and LPI combined with laser peripheral iridoplasty in eyes with primary angle closure suspect (PACS) by assessment of anterior chamber dimensional changes using a Pentacam.

Methods

Forty-eight eyes of 24 subjects with bilateral PACS were recruited consecutively. Each eye was randomly allocated to treatment with conventional LPI, argon LPI only, or LPI plus iridoplasty, which consisted of simultaneous argon LPI and peripheral iridoplasty. Anterior chamber measurements were performed on each eye using a Pentacam, both before and after treatment. Mean anterior chamber depth (ACD), anterior chamber volume (ACV), and anterior chamber angle were measured, and topographic ACD analysis was performed. Results were compared between the two treatment groups.

Results

After treatment with either conventional LPI or LPI plus iridoplasty, the mean ACD and ACV increased significantly. Topographic ACD analysis revealed that the mid-to-peripheral ACD increase was significantly greater in the LPI plus iridoplasty group than in eyes treated with conventional LPI. Intraocular pressure changes and post-LPI complications did not differ between the groups.

Conclusions

Compared with conventional LPI, our study showed that LPI plus iridoplasty improved the mid-to-peripheral ACD increase. This procedure may have a role as an adjunct for reducing angle closure by simultaneously eliminating pupillary and non-pupillary block components.     

激光周边虹膜成形术及激光周边虹膜成形联合虹膜切开术对角膜内皮细胞的影响

目的 比较激光周边虹膜成形术及激光周边虹膜成形联合虹膜周边切开术对角膜内皮细胞的影响。方法 对15例20眼单纯行周边虹膜成形术；对17例23眼行周边虹膜成形联合虹膜切开术。采用接触型镜面反光显微镜(Konan SP-5500型，日本)检测术前、术后1小时、1周、1月、3月、6月的角膜内皮细胞。统计分析平均细胞密度、细胞面积的变异系数和六边形细胞的百分率。结果 两种激光术式治疗后1小时至6个月与治疗前相比较，角膜内皮平均细胞密度、平均细胞面积变异系数、六边形细胞的百分率均有显著性差异，两组间比较各时期内皮细胞密度没有显著性差异。术后3个月和6个月细胞面积变异系数和六角形细胞百分率两组间比较有显著性差异。结论 两种激光术式均可引起角膜内皮细胞的损害，联合激光术式对角膜内皮细胞的损害大于单纯术式。     

激光虹膜成形术治疗早期慢性闭角型青光眼观察

目的：观察 Nd：YAG532激光虹膜周边成形术( Laser peripheral iridoplasty,LPIP)治疗早期慢性闭角型青光眼效果与安全性。
　　方法：2011-09/2012-10内诊断为早期慢性闭角型青光眼患者36例65眼,行LPIP。术前术后观察眼压、前房角、视力、视野、眼底、并发症等情况。随访12~24(平均18.2±6.7)mo。
　　结果：术前眼压23.8±5.6mmHg,LPIP术后1wk;术后1,3,6,12mo眼压分别为18.7±3.8,17.9±3.2,17.6±3.5,18.4±3.7,18.6±3.7mmHg,与术前比较差异全部具有统计学意义( P<0.05)。最末次随访眼压为18.6±7.8mmHg,与术前比较平均下降6.5±3.1mmHg,差异具有统计学意义( t=5.32, P<0.05)。术后1wk;术后1,3,6mo相比术前的前房角角度( TIA500)与500μm前房角开放距离( AOD500)增大有非常显著差异( P<0.05),术后1 a与末次相比术前TIA500与 AOD500无统计学意义( P>0.05)。术后随访时间内视力无变化,杯盘比无增大,视野损害无进展。
　　结论：激光虹膜周边成形术治疗早期慢性闭角型青光眼安全,短期内有效,中长期效果有回退,可以重复治疗。     

急性原发性房角关闭对侧眼激光周边虹膜切除术后接触性房角关闭的研究

目的了解急性原发性房角关闭（APAC）对侧眼激光周边虹膜切除术（LPI）后接触性房角关闭的发生率和眼部解剖特征。方法前瞻性研究。选择54例APAC对侧眼没有虹膜前黏连（PAS）的患者作为研究对象,平均年龄（67．1±7．2）岁（54—83岁）。采用超声生物显微镜（UBM）在暗环境下观察LPI后是否发生接触性房角关闭．并比较发生接触性房角关闭与不发生接触性房角关闭患眼的眼压、房角及各项UBM参数,包括房角开放距离。（AOD跏）、房角隐窝面积,。（ARA750）、小梁虹膜夹角（T—I角）、小梁睫状体距离（TCPD）、周边虹膜厚度（IT1）、虹膜悬韧带距离（IZD）、虹膜根部附着位置、中央前房深度（ACD）。对两组数据采用独立样本t检验及两样本秩和检验进行分析。结果LPI后暗环境下UBM检查至少一个象限发生接触性房角关闭的有20例,占37％。反映房角开放程度的指标（AOD500、ARA750、T-I角）和反映睫状体位置的指标（TCPD）：接触性房角关闭（＋）组小于（-）组（t=11．741、11．089、12．175、4．349,P均〈0．01）;反映虹膜形态和位置的指标IT1：接触性房角关闭（＋）组大于（-）组（t=-3．300,P=0．002）;IZD、虹膜根部附着位置及ACD比较,两组差异无统计学意义（t=-1．880,P=0．066;Z=-1．423,P=0．155;t=0．072,P=0．942）。结论APAC对侧眼LPI后在暗环境下仍有一定比例发生接触性房角关闭,房角窄、睫状体前位、周边虹膜厚是LPI后发生接触性房角关闭的解剖学特点,提示LPI后具有这些解剖特点的APAC患者有可能进展为慢性房角关闭。     

Outcome of laser peripheral iridotomy in chronic primary angle closure glaucoma

BACKGROUND AND OBJECTIVES: To report the effect of laser peripheral iridotomy on the angles of eyes with chronic angle closure glaucoma. PATIENTS AND METHODS: The hospital records of 171 consecutive patients with chronic primary angle closure glaucoma (CPACG) seen between October 1994 and March 1997 were analyzed to study the gonioscopic outcome of laser peripheral iridotomy (LPI). Success was defined as open angles (with or without medications for intraocular pressure (IOP) control) following LPI at the 1 month follow-up. RESULTS: Forty-seven eyes of 34 patients had chronic appositional angle closure glaucoma (CAACG), and 186 eyes of 124 patients had chronic synechial angle closure glaucoma (CSACG). Seventy eyes of 57 patients that underwent primary trabeculectomy for advanced disease were excluded from the study. Two hundred thirty-three eyes of 158 patients underwent LPI; the angles could be opened in 171 eyes (73.4%; confidence interval 67.7% to 79.1%) of 117 patients. Medications to control the IOP were required in 25 eyes (10.7%) of 19 patients. Fifty-four eyes of 34 patients that did not respond to LPI underwent argon laser gonioplasty. Gonioplasty was successful in opening at least 180 degrees of the angle in all eyes. There was no significant difference in success between CAACG (74.5%) and CSACG (73.1%). Age, IOP, and field loss were not predictors of outcome. There was perfect concordance of results between the 2 eyes of patients who had bilateral LPI. CONCLUSIONS: In this series, laser iridotomy was successful in opening the angle in 73.4% of eyes. Gonioplasty opened the angle in all eyes that underwent this procedure. The effect of iridotomy on one eye was predictive of the effect on the fellow eye.