选择性激光小梁成形术对部分特殊类型高眼压患者的降压效果

目的:探讨选择性激光小梁成形术(selective laser trabecu-loplasty,SLT)对部分特殊类型眼压升高患者的降眼压效果。这些患者不适宜或者不接受抗青光眼手术治疗。方法:临床观察10例高眼压患者,其中硅油取出后无晶状体高眼压1例,青光眼术后3例(其中1例在阿塞拜疆行二次抗青光眼手术),未确诊青光眼的高眼压症3例,硅油充填术后1例,绝对期青光眼2例(其中开角1例,闭角1例),根据眼压范围行Nd:YAG激光SLT治疗(选择上方或下方180°范围内治疗,原发性闭角型青光眼行激光周边虹膜成形术和激光周边虹膜切除术后眼压>21mmHg的再行选择性激光小梁成形术)。结果:SLT10眼术前平均眼压28.9±5.4mmHg(眼压22～40mmHg);术后1d;1wk;1,6mo眼压分别为21.6±6.5mmHg,24.3±6.01mmHg,22.2±63mmHg,21.4±5.2mmHg。SLT术后6mo不用药物眼压≤21mmHg有6眼;部分患者需要重复治疗,全部患者加用1种降眼压药物眼压≤21mmHg,未出现明显的前房炎症反应,少部分患者在治疗时有轻微的疼痛及不适感。结论:SLT对于不适宜抗青光眼手术治疗的一些特殊类型的高眼压患者,是安全有效、费用低廉的可供选择的降眼压方法。     

选择性激光小梁成形术治疗高眼压症和不同病程原发性开角型青光眼的疗效观察

目的 对比选择性激光小梁成形术(selective laser trabeculoplasty,SLT)治疗高眼压症(ocular hypertension,OHT)和早期、中期原发性开角型青光眼(primary open-angle glaucoma,POAG)的效果.方法 根据病情将120例120眼患者分为OHT组(40例40眼)、早期POAG组(40例40眼)和中期POAG组(40例40眼),3组均使用532 nm倍频Q开关Nd:YAG激光器行SLT,激光单脉冲3 ns,光斑直径400 nm,初始能量为0.6mJ,以0.1mJ逐渐递减,至刚好出现香槟样气泡时为治疗能量,治疗范围为360°,术后1d、1周、1个月、3个月及6个月随访,主要观察SLT治疗前后的眼压变化情况.结果 治疗后1d～6个月,OHT组、早期POAG组和中期POAG组术后各个时间点的眼压均较术前下降,差异均有统计学意义(均为P＜0.05).各组内,SLT术后各时间点的眼压相比,差异亦均有统计学意义(均为P＜0.05).OHT组、早期POAG组和中期POAG患者基线眼压分别为(25.95±1.80) mmHg(1 kPa =7.5 mmHg)、(24.66±1.55) mmHg和(25.62±2.67) mmHg,差异有统计学意义(P＜0.05).当剔除基线眼压的影响之后,术后1d、1周、1个月、3个月、6个月,3组间的眼压相比差异均有统计学意义(均为P＜0.05).在各组内,术后各时间点的眼压相比,差异亦均有统计学意义(均为P＜0.05).与校正后的基线眼压相比,OHT组SLT术后眼压下降的幅度最大,其次是早期POAG组,中期POAG组下降的幅度最小.结论 SLT对于OHT和POAG患者具有良好的降眼压效果,SLT的治疗效果随POAG患者的病情严重程度逐次递减.     

选择性激光小梁成形术治疗青光眼的临床观察

目的评价选择性激光小梁成形术(SLT)治疗原发性开角型青光眼(POAG)、正常眼压性青光眼(NTG)的疗效和安全性。方法选择局部用药眼压不能控制的原发性开角型青光眼20例(37眼),正常眼压性青光眼6例(10眼)。观察应用选择性激光小梁成形术后6个月眼压的变化。结果术后眼压平均降低幅度为4.86±2.14mmHg(24.04±10.21%),两组患眼的眼压在激光治疗后均有显著下降:开角型青光眼组术后6个月的眼压较术前平均下降5.44±2.32mmHg(24.90±11.09%);正常眼压性青光眼组平均下降2.71±1.12mmHg(19.06±7.19%)。术后暂时的眼压升高、前房炎症反应为常见的并发症。结论选择性激光小梁成形术具有降眼压效果明显、安全、实用、损伤小、可重复等特点,是治疗青光眼的一种较安全有效的方法。     

选择性激光小梁成形术对开角型青光眼小梁切除术后高眼压的疗效

目的观察选择性激光小梁成形术对降低开角型青光眼小梁切除术后患者眼压的疗效。方法22例患者22眼,使用倍频Q-开关Nd:YAG激光照射鼻侧180°小梁网,光斑400μm,脉宽3ns,能量设置(0.4～1.0)mJ,光斑点数50～55。术后测1h、1d、1w、1m、3m、6m眼压。结果术后6月成功率为16/22(72.7%)。术前、术后1h、1d、1w、1m、3m、6m眼压分别为23.5±3.4mmHg,24.14±4.3mmHg,16.84±4.6mmHg,19.3±3.8mmHg,18.5±4.1mmHg,19.7±4.5mmHg,19.4±4.7mmHg。结论SLT对开角型青光眼术后高眼压具有良好的降压效果。     

选择性激光小梁成形术对开角型青光眼小梁切除术后高眼压的疗效

目的观察选择性激光小梁成形术对降低开角型青光眼小梁切除术后患者眼压的疗效。方法22例患者22眼,使用倍频Q-开关Nd:YAG激光照射鼻侧180°小梁网,光斑400μm,脉宽3ns,能量设置0.4~1.0mJ,光斑点数50~55。术后测1h、1d、1周及1、3、6月眼压。结果术后6月成功率为16/22(72.7%)。术前、术后1h、1d、1周及1、3、6月眼压分别为(23.5±3.4)mmHg、(24.1±4.3)mmHg、(16.8±4.6)mmHg、(19.3±3.8)mmHg、(18.5±4.1)mmHg、(19.7±4.5)mmHg、(19.4±4.7)mmHg。结论SLT对开角型青光眼术后高眼压具有良好的降压效果。     

选择性激光小梁成形术研究进展

激光治疗是青光眼治疗的重要手段之一。选择性激光小梁成形术（SLT）选择性作用于小梁网的色素细胞,避免了对周边组织的损害,同时可起到一定程度的降眼压作用,其机制复杂,目前尚不完全明确。相关研究显示,对于开角型青光眼,SLT具有与氩激光小梁成形术（ALT）以及药物治疗相似的效果,在部分复杂病例及闭角型青光眼中也显示了一定的降眼压作用,术后反应较轻,且可以重复操作,将会越来越受到重视。就SLT的原理、临床应用进展及其并发症等进行综述。     

选择性激光小梁成形术临床疗效观察

目的:评价选择性激光小梁成形术对进展期青光眼的治疗效果。方法:对26例36眼房角开放的进展期的开角型青光眼和继发性青光眼患者,选用激光小梁成形术进行治疗。测量激光前及激光术后不同时间的眼压并进行统计学分析,观察激光前后视力、眼底、视野和局部用药量的变化。结果:患者术前眼压24.44±5.55mmHg,术后1h为24.22±6.32mmHg,无统计学差异;术后1d;1wk;1,2,3,6,9,12mo眼压下降,与术前有统计学差异(P<0.01)。术前患者杯盘比为0.75±0.16,术后6mo为0.76±0.14,无统计学差异;术后12mo为0.77±0.15,与术前比较有统计学差异(P<0.05)。术前用药平均为1.69±0.58种,术后6mo内用量下降,有统计学差异;9,12mo用药量上升,与术前比较无统计学差异(P<0.05)。视力、视野术前术后无进展。结论:激光小梁成形术可以有效地降低进展期青光眼患者的眼内压。     

选择性激光小梁成形术189眼治疗观察

目的观察选择性激光小梁成形术(SLT)作为原发性开角型青光眼、视网膜静脉阻塞伴开角型青光眼、进展性近视伴开角型青光眼、正常眼压性青光眼、前部缺血性视神经病变改善眼压首选治疗的安全性和有效性。方法分别对原发性开角型青光眼患者48例79只眼,视网膜静脉阻塞伴开角型青光眼患者26例36只眼,正常眼压性青光眼患者12例24只眼,前部缺血性视神经病变(AION)患者28例32只眼,进展性近视伴开角型青光眼患者14例18只眼,总计128例189只眼进行SLT治疗。结果以患者术后眼压较术前眼压下降≥3mmHg为有效,分别计算出患者术后2小时、1月、3月、6月、12月的有效率,总有效率分别为93.65%、97.48%、95.65%、94.57%、91.49%。结论SLT有显著的降眼压效果、安全、损伤小、实用、简便、科学。     

选择性激光小梁成形术治疗原发性青光眼的疗效

目的 评价选择性激光小梁成形术(selective laser trabeculoplasty,SLT)治疗原发性开角型青光眼(primary open-angle glaucoma,POAG)和原发性慢性闭角型青光眼(chronic primary angle-closure glaucoma,CPACG)的疗效及安全性.方法 收集我院眼科2007年1月至2008年1月就诊的原发性青光眼患者34例61眼,其中POAG组患者18例34眼,CPACG组患者16例27眼,2组均应用SLT治疗.观察患者术后1 h、1 d、1周、1个月、3个月、6个月的眼压以及术后6个月视力、视野、房角及角膜内皮细胞数等变化.结果 2组患者眼压在激光治疗后均有显著下降,POAG组患者术前平均眼压为(25.2±2.2)mmHg(1 kPa=7.5 mmHg),术后1 h、1 d、1周、1个月、3个月、6个月眼压分别为(28.9±1.3)mmHg、(17.0±1.9)mmHg、(19.9±1.7)mmHg、(20.1±1.8)mmHg、(18.2±2.1)mmHg、(18.0±2.1)mmHg.CPACG组患者术前平均眼压为(24.9±2.1)mmHg,术后对应时间点眼压分别为(29.3±1.6)mmHg、(16.9±2.0)mmHg、(20.3±1.8)mmHg、(19.3±1.9)mmHg、(20.1±2.0)mmHg、(18.9±2.2)mmHg.2组术后1 d、1周、1个月、3个月、6个月的眼压与术前相比明显下降,差异均有统计学意义(P均<0.05).术后1 d眼压下降最明显,术后一过性眼压升高为最常见的并发症.术后6个月2组患者随访视力、前房角、视野、角膜内皮细胞计数与术前比较均无明显变化.结论 SLT可以安全有效地降低POAG和房角大部分开放的CPACG患者的眼压.     

选择性激光小梁成形术的研究进展

青光眼是全球第一大不可逆的致盲性眼病,通过药物、激光和手术降低眼压是治疗青光眼的基本方法。选择性激光小梁成形术(SLT)是应用倍频Q开关、波长532 nm的掺钕钇铝石榴石激光,选择性作用于色素性小梁组织达到降低眼压目的。近30年来,SLT在不引起小梁网凝固性损伤的情况下可以降低眼压,已经逐渐成为治疗以原发性开角型青光眼为主的各种类型青光眼的初始治疗或替代治疗方法之一。本文中笔者就SLT的历史沿革、降眼压机制、临床应用、初始治疗、重复治疗、治疗成功的预测因素、并发不良反应、成本效益及健康相关生活质量等方面进行综述。     

Mid-term results of patterned laser trabeculoplasty for uncontrolled ocular hypertension and primary open angle glaucoma

AIM: To describe the safety and efficacy of patterned laser trabeculoplasty (PLT) as an adjunctive treatment in primary open angle glaucoma (POAG) and ocular hypertension (OHT) after 18-month follow-up in Hispanic population.METHODS: A single-center, retrospective study was conducted. All patients with OHT or POAG undergoing PLT from June 2016 to August 2016 were included in the study. Investigated parameters were intraocular pressure (IOP), the number of IOP-lowering medications, best corrected visual acuity (BCVA), laser parameters and postoperative adverse events. Primary efficacy outcome measures were the proportion of eyes achieving an IOP reduction ≥20% at 18mo versus baseline medicated IOP or a reduction in the number of medications while maintaining IOP values.RESULTS: From 40 PLT-treated eyes (mean baseline IOP 20.3±1.7 mm Hg), 24 patients were analyzed (age 63.4±7.3y). The mean IOP reductions from baseline across visits (months 1, 3, 6, 9, 12, and 18) ranged from 14.1% to 20.8%. Success rate after 18-month follow-up was 61.7% with a mean IOP of 16±3.2 mm Hg (P<0.001). The number of glaucoma IOP-lowering medications per eye (preoperative 2.1±1.1 and postoperative 2.3±1.1, P=0.86) and the mean BCVA (preoperative 0.10±0.22 and postoperative 0.11±0.22 logMAR, P=0.42) remained stable. Adverse events comprised transitory IOP spikes in 4 eyes (10%) and peripheral anterior synechiae in 7 eyes (17.5%).CONCLUSION: Mid-term results of PLT show that this procedure may be an efficacious and safe technique to approach medically uncontrolled OHT or POAG patients.     

Clinical outcomes of patterned laser trabeculoplasty as adjuvant therapy in open angle glaucoma and ocular hypertension

AIM: To assess the efficacy and safety of patterned laser trabeculoplasty (PLT) as an adjunctive treatment in open angle glaucoma (OAG) or ocular hypertension (OHT) patients who were under antiglaucoma medical treatment. METHODS: This study was a retrospective review of primary or secondary OAG patients and OHT patients with medically uncontrolled (≥18 mm Hg) intraocular pressure (IOP) who underwent 360o PLT from June 2016 to August 2016. Follow-up visits at week 1, and 1, 3 and 6mo were performed. IOP, best corrected visual acuity (BCVA), complications and eye drop glaucoma medication were recorded at each follow-up visit. Success was defined as IOP reduction ≥20% from baseline. RESULTS: Forty-one eyes of 25 patients were included in this study. Pre-treatment mean IOP was 20.2±1.6 mm Hg. After PLT, IOP was 19.3±5.2, 16.1±2.7, 17.1±3.7 and 16.3±3.5 mm Hg, at 1wk, 1, 3 and 6mo, respectively. IOP reduction from baseline was statistically significant from the first month, remaining stable at 6mo (P<0.001). PLT success at 6mo of follow-up was 48.78%. The number of glaucoma medication per eye (P=0.10) and the mean BCVA both remained constant (P=0.37). Complications included transient IOP spikes in 4 eyes (9.8%) and peripheral anterior synechiae in 7 eyes (17.1%). CONCLUSION: PLT is an effective and safe method for the management of patients with OHT or OAG as an adjunctive therapy. Additional larger studies should be designed to verify the long-term stability of IOP reduction with this laser technology.     

选择性激光小梁成形术治疗开角型青光眼的研究进展

选择性激光小梁成形术（selective laser trabeculoplasty,SLT）采用倍频Q开关Nd：YAG激光,选择性作用于色素小梁网,而对邻近无色素小梁网不产生热损伤和凝固性破坏,目前对其作用机制的研究多集中于细胞因子的作用和后基因水平的改变.在SLT问世之初主要应用于原发性开角型青光眼的治疗,随着对其研究的深入,近年来SLT又被证明对其他类型的开角型青光眼也是安全有效的.在传统治疗参数的基础上,有学者认为低能量激光可以取得更好的疗效.目前已证实的影响SLT的降压效果的因素为基线眼压,基线眼压越高,效果越好.SLT术后常见的并发症包括一过性眼压升高、前房炎性反应以及结膜充血等.SLT的治疗能量与范围的选择、是否能替代传统的药物治疗而作为原发性开角型青光眼患者的初始治疗方法及其与药物配合治疗的最佳方案等问题仍需进一步研究探讨.     

Five-year follow up of selective laser trabeculoplasty in Chinese eyes

PURPOSE: To study the effectiveness and safety of selective laser trabeculoplasty (SLT) on primary open-angle glaucoma and ocular hypertension in Chinese eyes. METHODS: This was a prospective randomized controlled clinical study in which 58 eyes of 29 patients with primary open-angle glaucoma or ocular hypertension were included. One eye of each patient was randomized to receive SLT (Group 1) and the fellow eyes received medical treatment (Group 2). Patients were evaluated after laser treatment at 2 h, 1 day, 1 week, 2 weeks, 1 month, 3 months, 6 months, and then yearly. RESULTS: All patients (13 male, 16 female) were Chinese. The mean age was 51.9 +/- 14.7 years. The mean baseline intraocular pressure was 26.8 +/- 5.6 mmHg in group 1 and 26.2 +/- 4.2 mmHg in group 2 (P = 0.62). The failure rate, defined as intraocular pressure >21 mmHg with maximal medications, was 17.2% in group 1 and 27.6% in group 2 at 5-year follow-up (P = 0.53). Eight eyes (27.6%) in group 1 required medications to control the intraocular pressure to below 21 mmHg. There was no statistically significant difference in the intraocular pressure reductions between the two groups at all time intervals (P > 0.05). The mean number of antiglaucoma medications was significantly lower in the SLT than the medical treatment group up to 5 years of follow up (P < 0.001). Transient post-SLT intraocular pressure spike >5 mmHg was observed in three eyes (10.3%). CONCLUSION: With fewer medications, SLT gives similar intraocular pressure reduction to medical therapy alone in Chinese patients with primary open-angle glaucoma or ocular hypertension.     

选择性激光小梁成形术治疗不同分期原发性开角型青光眼的疗效观察

目的：评价并比较选择性激光小梁成形术(SLT)治疗不同分期原发性开角型青光眼(POAG)的临床效果。

方法：回顾性研究。选取2018-07/2020-03在我院选择行SLT治疗POAG患者27例51眼,按照视野平均缺损(MD)将患者分三组：早期组(MD>-6dB)15眼,中期组(-12dB≤MD≤-6dB)15眼,晚期组(MD<-12dB)21眼,采用532nm倍频Q开关Nd：YAG激光治疗仪,脉冲时间3ns,光斑直径400μm,行360° SLT治疗,观察治疗后1h,1d,1、3、6、12mo眼压下降比例,观察视野指数(VFI)及MD变化、用药变化、不良反应及治疗有效率。

结果：治疗后12mo内,三组患者眼压及眼压下降比例组间比较均无差异(均P>0.05),各组间VFI及MD有差异(P<0.001),随观察时间延长,各组VFI及MD均未见明显下降(P>0.05)。三组患者治疗有效率在治疗后1、3、6、12mo分别为早期组(100%、93%、87%、67%),中期组(87%、80%、93%、60%),晚期组(67%、71%、62%、19%)。

结论：SLT对早期组、中期组、晚期组POAG患者均可实现有效治疗,但治疗有效率随着时间延长而降低。