Progression rate to primary angle closure following laser peripheral iridotomy in primary angle-closure suspects: a randomised study

AIM:To report the progression rate(PR)to primary angle closure(PAC)following laser peripheral iridotomy(LPI)in PAC suspects(PACS).METHODS:Prospective,randomized controlled interventional clinical trial conducted at the Handan Eye Hospital,China.Totally 134 bilateral PACS,defined as non-visibility of the posterior trabecular meshwork for≥180 degrees on gonioscopy were randomly assigned to undergo LPI in one eye.Gonioscopy and Goldmann applanation tonometry were performed prior to,on day 7 and 12 mo post LPI.RESULTS:Eighty of 134 patients(59.7%)could be followed up at one year.The mean intraocular pressure(IOP)in treated eyes was 15.9±2.6 mm Hg at baseline,15.4±3.0 mm Hg on day 7;16.5±2.9 mm Hg at one month,and 15.5±2.9 mm Hg at 12 mo;the IOP in untreated eyes was similar(P=0.834).One or more quadrants of the angle opened in 93.7%of the LPI treated eyes,but 67.0%(53/79)remained closed in two or more quadrants.The PR to PAC in untreated eyes was 3.75%and one developed acute angleclosure glaucoma(AACG);the PR to PAC in treated eyes was 2.5%and none had developed peripheral anterior synechia(PAS)or AACG.CONCLUSION:LPI can open some of the occludable angle in the majority of eyes with PACS,but 67%continue to have non-visibility of the trabecular meshwork for over 180 degrees.

Comparison of ultrasound biomicroscopy and spectraldomain anterior segment optical coherence tomography in evaluation of anterior segment after laser peripheral iridotomy

AIM：To quantitatively assess narrow anterior chamber angle using spectral-domain anterior segment optical coherence tomography（SD-AS-OCT） and ultrasound biomicroscopy（UBM）,and to evaluate the correlations and consistency between SD-AS-OCT and UBM.· METHODS：Fifty-five eyes from 40 patients were examined.Patients were diagnosed with primary angleclosure glaucoma（PACG） remission（11 eyes from 8patients）,primary angle closure（PAC,20 eyes from 20patients） and PAC suspect（24 eyes from 12 patients）.Each eye was examined by SD-AS-OCT and UBM after laser peripheral iridotomy（LPI）.The measurements of SD-AS-OCT were angle open distance（AOD）,anterior chamber angle（ACA）,trabecular iris angle（TIA）,and trabecular iris space area（TISA）.UBM measurements were AOD and TIA.Correlations of AOD500 and TIA500 between UBM and AS-OCT were assessed.All parameters were analysed by SPSS 16.0 and MedCalc.· RESULTS：ACA,TIA and AOD measured by SD-ASOCT reached a maximum at the temporal quadrant and minimum at the nasal quadrant.Group parameters of AOD500 and AOD750 showed a linear positive correlation,and AOD750 had less variability.UBM outcomes of AOD500 and TIA500 were significantly smaller than those of SD-AS-OCT.The results of the two techniques were correlated at the superior,nasal and inferior quadrants.CONCLUSION：Both UBM and SD-AS-OCT are efficient tools for follow-up during the course of PACG.We recommended using parameters at 750 μm anterior to the sclera spur for the screening and follow-up of PACG and PAC.The two methods might be alternatives to each other.

Associations of lens thickness and axial length with outcomes of laser peripheral iridotomy

AIM:To investigate the association of axial length(AL),lens thickness(LT),and lens vault(LV)with postoperative anterior chamber angle metrics after laser peripheral iridotomy(LPI).METHODS:Prospective observational study of 69 patients(97 eyes)were diagnosed as primary angle-closure suspect(PACS),primary angle closure(PAC)or primary angle-closure glaucoma(PACG).AL,LT,anterior central chamber depth(ACD),angle opening distance(AOD),trabecular iris angle(TIA),and angle recess area(ARA)were measured before and 1 wk after LPI.The association between AL,LT,LV with ACD,AOD,TIA,ARA were analyzed by comparing the differences between preoperative and postoperative measurements for anterior segment biometric parameters.RESULTS:ACD,AOD,TIA,and ARA were significantly increased after LPI(all P<0.05).Greater LT was significantly associated with greater postoperative increases in ACD,AOD,TIA,and ARA(all P<0.05).AL was not significantly associated with changes of anterior segment biometric parameters.Greater LV was significantly associated with greater postoperative increases in ACD,AOD,and TIA(all P<0.05),but was not significantly associated with changes of ARA.CONCLUSION:Greater baseline LT and LV measurements are associated with greater increases in anterior segment biometric parameters after laser peripheral iridotomy.AL are not associated with the change of anterior segment biometric parameters.

Comparison of laser iridotomy using short duration532-nm Nd: YAG laser (PASCAL) vs conventional laser in dark irides

AIM: To evaluate the outcome of laser iridotomy using532-nm Nd: YAG laser(PASCAL) with short pulse duration and Nd: YAG laser compared to conventional combined laser iridotomy.METHODS: Retrospective, nonrandomized, comparative case series. Forty-five eyes of 34 patients underwent laser iridotomy. Twenty-two eyes underwent iridotomy using short duration PASCAL and Nd: YAG laser, and 23 eyes underwent iridotomy using conventional combined laser method. The average settings of PASCAL were60 μm and 700-900 m W with a short duration of 0.01 s to reduce the total applied energy. The conventional laser was 50 μm and 700-900 m W for 0.1s. After photocoagulation with these laser, the Nd: YAG laser was added in each group. Endothelial cell counts of preiridotomy and 2mo after iridotomy were measured and compared.RESULTS: All eyes completed iridotomy successfully.The total energy used in the PASCAL group was 1.85 ±1.17 J. Compared to conventional laser 13.25 ±1.67 J, the energy used was very small due to the short exposure time of PASCAL. Endothelial cell counts were reduced by0.88% in the PASCAL group and 6.72% in the conventional laser group(P =0.044). The change in corneal endothelial cell counts before and after iridotomy was significant in conventional combined laser iridotomy group(P =0.004).CONCLUSION: Combined PASCAL and Nd:YAG laseriridotomy is an effective and safe technique in the dark brown irides of Asians. Furthermore, the short duration of exposure in PASCAL offers the advantages of reducing the total energy used and minimizing the corneal damage.

Efficacy of laser peripheral iridoplasty and iridotomy on medically refractory patients with acute primary angle closure： a three year outcome

Background Argon laser peripheral iridoplasty （ALPI） is proved to be effective in lowering intraocular pressure （lOP） of patients with mild acute primary angle closure （APAC）. It is unclear whether this laser treatment is equally efficient in managing patients with severe APAC. This study aimed peripheral iridotomy （LPI） on patients with refractory APAC, therapy. to evaluate the IOP-lowering efficacy of ALPI and laser who have previously responded poorly to intensive medical Methods Thirty-six patients （8 men and 28 women） were identified as medically refractory APAC, who still had ocular pain, red eye, hazy cornea, closed anterior chamber （AC） angle, and lOP of not less than 21 mmHg after two days or more of anti-glaucoma medication. All enrolled patients underwent ophthalmologic examinations including measurement of visual acuity （VA）, best corrected VA （BCVA）, lOP, biomicroscopy, and gonioscopy followed by ALPI immediately in the APAC eye and LPI in both eyes. Results All patients were affected unilaterally, with average age of （54.6±11.7） （range, 37.0-75.0） years old. The mean lOP value of the affected eyes dropped from （31.6±7.7） （range, 21.0-39.0） mmHg at enrollment to （18.4±8.7） （range, 10.0-27.0） mmHg 2 hours after ALPI. At follow-up day 7, the mean lOP value maintained at （14.8±4.2） （range, 9.0-21.0） mmHg, which was significantly different （P=0.000） compared with baseline. The average decrease of lOP in the APAC eyes was （16.8±7.4） （range, 12.0-21.0） mmHg. At follow-up three years later, the mean lOP of the APAC eyes stabilized at （16.3±3.2） （range, 9.0-20.0） mmHg with at least 180° of AC angle opened. Conclusion ALPI and LPI lower the lOP of medically refractory cases of APAC though they have responded poorly to anti-glaucoma medication.

Predictors of angle widening after laser iridotomy in Chinese patients with primary angle-closure suspect using ultrasound biomicroscopy

AIM:To assess the predictive value of baseline parameters of ultrasound biomicroscopy(UBM) for angle widening after prophylactic laser peripheral iridotomy(LPI) in patients with primary angle-closure suspect(PACS).METHODS:Angle-opening distance(AOD),trabecular iris angle(TIA),iris thickness,trabecular-ciliary process angle,and trabecular-ciliary process distance were measured using UBM performed before and two weeks after LPI.Iris convexity(IC),iris insertion,angulation,and ciliary body(CB) size and position were graded.Uni-and multivariate regression analyses were used to determine factors predicting the change in AOD(ΔAOD500,calculated as an angle width change before and after LPI) in all quadrants and in subgroup quadrants based on IC.RESULTS:In 94 eyes of 94 patients with PACS,LPI led to angle widening with increases in AOD500 and TIA(P<0.01).Multivariable regression analysis showed that IC(P<0.001),CB position(P=0.007) and iris insertion(P=0.049) were significantly predictive for ΔAOD500.All quadrants were categorized into extreme IC(27.8%),moderate IC(62.3%),and absent IC(9.9%) subgroups.The AOD500 increased by 220% and no other predictive factor was found in the extreme IC quadrants.The AOD500 increased by 55%,and baseline iris angulation was predictive for smaller changes in ΔAOD500 in the moderate IC quadrants.CONCLUSION:In PACS patients,quadrants with greater iris bowing predict substantial angle widening after LPI.Quadrants with a flatter iris,anteriorly positioned CB,and basal iris insertion are associated with less angle widening after LPI.Quadrants with iris angulation as well as a flatter iris configuration predict a smaller angle change after LPI.

Assessment of the anterior chamber parameters after laser iridotomy in primary angle close suspect using Pentacam and gonioscopy

AIM:To evaluate the changes in the anterior segment parameters of the subjects with primary angle closure suspect(PACS) before and after laser iridotomy(LI) using the Pentacam and gonioscopy. METHODS:Forty-eight eyes of 48 PACS were included.Anterior chamber angle(ACA),central anterior chamber depth(ACD),anterior chamber volume(ACV) and central corneal thickness(CCT) were recorded from the Pentacam before and one month after LI.ACA was graded according to Shaffer classification using Goldmann gonioscopy.RESULTS:ACA increased significantly from 25.59±4.41 to 26.46±4.33 degrees(P=0.009) and ACV changed from 85.97±16.07mm3to 99.25±15.83mm3(P=0.000).The changes in ACD,CCT and intraocular pressure were non-significant(P】0.05).Gonioscopy showed significant widening of the Shaffer angle in 4 quadrants(P【0.001).CONCLUSION:Pentacam can serve as the objective instrument in assessing the efficacy of LI.

Nd: Yag laser iridotomy in Shaffer-Etienne grade 1 and 2: angle widening in our case studies

·AIM: To obtain widening of a potentially occludable angle, in according to Kanski’s indications, through preventive Nd:Yag laser iridotomy. The observational study was performed by using gonioscopy for the selection and follow-up of 1165 treated eyes and exploiting Shaffer-Etienne gonioscopic classification as a quality/quantity test of the angle recession.·METHODS: Between September 2000 and July 2012,586 patients were selected at the Outpatients’ Ophthalmological Clinic of the Policlinico Umberto I of Rome in order to undergo Nd: Yag laser iridotomy. A Goldmann type contact lens, Q-switched mode, 2-3defocus, and 7-9 m J intensity with 2-3 impulse discharges were used for surgery.·RESULTS: From as early as the first week, a whole360° angle widening were evident in the patients, thus showing the success of Nd:Yag laser iridotomy in solving relative pupil block. The angle remained narrow by 270° in 14 eyes only, despite repetitions of further treatment with laser iridotomy in a different part of the iris, twice in 10 eyes and three times in 4 eyes.·CONCLUSION: Nd:Yag laser iridotomy revealed itself as being a safe and effective treatment in widening those critical Shaffer-Etienne grade 1 and 2 potentially occludable angles.

Combined Argon and Nd: YAG Laser Peripheral Iridectomy: A New Approach in Clinical Practice

Purpose: To evaluate the therapeutic effect of combind argon and Nd: YAG laser peripheral iridectomy.Methods: 151 cases (200 eyes) of primary angle-closure glaucoma and combined glaucoma were treated by combined procedure. Argon laser was the first used to create partial iridectomy in 2/3-3/4 thickness without penetrating pigmented epithelium, and then Nd: YAG laser was required to complete a patent iridectomy. Results: A successful iridectomy was achieved in all patients independent of any type of irides (100%). Iris penetration rate in one session presented in 95. 0%. Complications appeared to be less common in our patients: iris bleeding was only seen in 5. 0% cases; the postoperative inflammation was mild; corneal burns, lecalized lenticular opacities and closure of iridectomies were less frequent. The follow-up ranged from 3m to 6. 5 years. The success rate in controling IOP with/ without medications were 99. 0% except 2 eyes failur. No attack occured in 129 eyes with prophylatic laser therapy

Evaluation of the learning curve of laser peripheral iridectomy:the 20^(th)case reaches the turning point

AIM:To explore the learning curve for ophthalmologists at the start of laser peripheral iridectomy(LPI)training.METHODS:The learning curve of 4 doctor groups without previous LPI experience was studied.Three main parameters of LPI were reviewed:total energy,argon energy and neodymium-doped yttrium aluminum garnet(Nd:YAG)energy.Procedures were evaluated in cohorts of 20 cases to identify the turning points of the three variables.RESULTS:There was no significant difference in terms of age or eye among the 4 doctor groups.There were stable trends on the learning curve for the Doctor A and C groups regarding total energy and argon energy.In addition,the turning points on the learning curve were determined after the 20th procedure for the Doctor B and D groups regarding total energy and argon energy.Moreover,the Nd:YAG energy was relatively stable since the first procedure.CONCLUSION:It requires approximately 20 procedures for a beginner to reach a turning point on the learning curve regarding LPI.It can serve as a point of reference or guideline for training beginners to perform LPI.

Roles of reinforced nerve conduits and low-level laser phototherapy for long gap peripheral nerve repair

Peripheral nerve injuries are common in clinical practice because of traumas such as crushing and sectioning. Lesions of the nerve structure result in lost or diminished sensitivity and/or motor activity in the innervated territory. The degree of lesion depends on the specific nerve involved, the magnitude and type of pres- sure exerted, and the duration of the compression. The results of such injuries commonly include axonal degeneration and retro- grade degeneration of the corresponding neurons in the spinal medulla, followed by very slow regeneration （Rochkind et al., 2001）. The adverse effects on the daily activities of patients with a peripheral nerve injury are a determining factor in establishing the goals of early recovery （Rodriguez et al., 2004）.

激光周边虹膜切除术在原发性急性闭角型青光眼患者中的应用效果及对眼压和视力的影响

目的探讨激光周边虹膜切除术在原发性急性闭角型青光眼患者中的应用效果及对眼压和视力的影响。方法以随机法选取2020年10月至2022年10月的80例(86眼)原发性急性闭角型青光眼患者作为研究对象,所有患者给予激光周边虹膜切除术治疗。观察患者术前、术后的眼压、视力水平、房角关闭情况及角膜内皮细胞指标。结果术后,患者的眼压低于术前,视力水平高于术前(P<0.05)。术后,患者的前房角角度(ACA)、前房容积(ACV)和周边前房深度(PACD)均显著大于术前(P<0.05);术后,患者的中央前房深度(CACD)与术前比较,差异无统计学意义(P>0.05)。术后,患者的平均内皮细胞面积(AVE)、最大细胞面积(MAX)、最小细胞面积(MIN)、细胞密度(CD)、变异系数(CV)及细胞面积标准差(SD)与术前比较,差异无统计学意义(P>0.05)。结论原发性急性闭角型青光眼患者早期给予激光周边虹膜切除术治疗对降低眼压有明显效果,且还能提升视力水平,改善房角关闭情况,对患者角膜内皮细胞的损伤较小,安全性较高。

Pentacam changes in primary angle-closure glaucoma after different lines of treatment

AIM: To assess the changes in the anterior chamber parameters using Pentacam following four different lines of treatment of primary angle-closure glaucoma(PACG).METHODS: A retrospective comparative study included 126 patients(126 eye) presented within 24-48 h after acute angle-closure glaucoma(AACG). Patients were divided into 2 groups: group A(68 eyes) with controlled intraocular pressure(IOP) ≤21 mm Hg, which included subgroup A1(34 eyes) with clear lens underwent Nd:YAG laser peripheral iridotomy(LPI) and subgroup A2(34 eyes) with cataract underwent standard phacoemulsification;and group B(58 eyes) with uncontrolled IOP, which included subgroup B1(30 eyes) with clear lens underwent trabeculectomy and subgroup B2(28 eyes) with cataract underwent combined phacoemulsification and trabeculectomy. Patients were fol owed up for at least 3 mo. Primary outcomes were Pentacam anterior segment measurements [anterior chamber angle(ACA) and depth(ACD)]. Secondary outcomes were changes in IOP, visual acuity(VA) and recorded complications. RESULTS: At the 3^(rd)month, there was significant increase in the ACA values in all studied groups compared to preoperative values(P<0.001). The highest percent of increase in ACA was recorded in phacotrabeculectomy group B2(128.40%). There was significant increase in ACD values at 3^(rd)month compared with baseline values(P<0.001) for groups A1, A2, and B2;without change in B1 trabeculectomy group. The maximum deepening of ACD was noticed in group B2 with 94.27% increase. Significantdecrease in postoperative IOP in groups A2, B1 and B2(P<0.001, P=0.014, and P<0.001 respectively). In group A1 there was significant increase in 3^(rd)month postoperative IOP from baseline values(P<0.001). The maximum decrease in IOP was noticed in group B2 with 59.54% decrease. VA improvement in 3^(rd)month postoperative was recorded in all studied groups, maximum VA improvement was observed in group B2 up to 0.2 log MAR.CONCLUSION: Pentacam can be a helpful tool in studying and comparing the effect of the different lines of management of PACG on the anterior chamber measures. Phacotrabeculectomy was proved to be an effective line for managing PACG with resultant significant increase in the anterior chamber parameters, IOP reduction as well as maximum VA improvement. LPI has only temporary effect on IOP with significant changes in ACA and ACD. Phacoemuslification alone can be an option in treating PACG. Trabeculectomy resulted in temporary increase in the anterior chamber parameter which subsequently returned to baseline values.

充分硅油填充术治疗复发性视网膜脱离的有效性和安全性研究

目的探讨应用前后段联合手术,后囊切开联合下方周边虹膜造孔、充分硅油填充治疗复发性视网膜脱离的解剖复位率、视力恢复、手术相关并发症情况等临床疗效。方法前瞻性系列病例研究。研究纳入2018年6月至2022年6月,在汕头国际眼科中心诊治的,既往有明确的孔源性视网膜脱离病史并曾行1次或多次视网膜脱离复位术,术后视网膜仍有脱离的患者25例(25只眼)。其中男性14例,女性11例,平均年龄(52.92±13.94)岁,既往平均行(1.44±0.71)次手术(范围1~3次)。本次术前增生性玻璃体视网膜病变(PVR)C_(1)级3只眼,C_(2)级9只眼,C_(3)级11只眼,D_(1)级2只眼;上方裂孔5只眼,下方裂孔18只眼,上下方均有裂孔2只眼;合并脉络膜脱离2只眼。应用晶状体后囊膜切开、下方周边虹膜造孔,充分硅油填充治疗。收集并分析术前、术后3个月、已取油患者取油后2个月及末次随访的最佳矫正视力、眼压、视网膜情况、眼内硅油状态、手术并发症及其处理等。结果所有患者出院时视网膜平伏,硅油完全退回玻璃体腔。术后3个月,所有患者视网膜平伏,平均眼压(14.24±6.28)mmHg。平均随访时长(20.64±12.20)个月,期间所有研究眼玻璃体腔裂隙灯前置镜下及欧堡眼底照相均未观察到油水界面,提示硅油充填相对充分。其中17只眼已取出眼内硅油,平均硅油填充时间(7.26±2.02)个月,在取出眼内硅油前行角膜内皮镜检查,角膜内皮丢失率18.57%。8只眼未取出眼内硅油,平均随访时长(24.38±12.07)个月,其中高度近视黄斑萎缩明显、视力较差3只眼;广泛视网膜及脉络膜疤痕、眼压≤8mmHg3只眼;拒绝再次手术取油2只眼,至末次随访,17只眼已取出眼内硅油均保持视网膜完全贴附,8只眼未取出硅油均保持视网膜复位,未发现硅油乳化迹象。末次随访最佳矫正视力logMAR(1.21±0.60)较术前logMAR(1.66±0.66)提高,差异有统计学意义(P<0.05)。主要并发症为术后早期高眼压(15只眼,60%),10只眼经过单纯降眼压药物处理控制良好,5只眼用药下眼压控制不良,行前房穿刺放出少量房水(2只眼)或硅油(3只眼),所有患者出院时眼压均控制在21 mmHg以下。结论对于复发性视网膜脱离,行玻璃体切除、后囊膜切开联合下方周边虹膜造孔、充分硅油填充的治疗安全有效,操作简单,可以实现硅油在眼内的相对充分填充,对裂孔处于后极部及下方的患者尤为重要。尽管术后早期高眼压发生率较高,但均可控制。该手术方式是复发视网膜脱离复位手术的一种有效的改良和补充。

激光联合手术治疗原发性闭角型青光眼的研究进展

青光眼为不可逆性的致盲性疾病,我国原发性闭角型青光眼(primary angle closure glaucoma,PACG)是其主要类型,常见的手术治疗方式有超声乳化联合小梁切除术(青白联合术)和超声乳化联合房角粘连分离术等。本文对激光与白内障超声乳化联合房角分离术治疗原发性闭角型青光眼合并白内障的原理,多种激光联合手术治疗的临床应用、疗效及特点进行阐述。通过查阅文献并综述发现,控制眼压对原发性闭角型青光眼患者具有重要意义,激光治疗作为预防及治疗原发性闭角型青光眼的重要方法,具有简单、便捷、快速等优点,激光与超声乳化联合房角分离手术对于原发性闭角型青光眼合并白内障患者解除瞳孔阻滞,恢复前房正常解剖结构具有更好疗效。

原发性房角关闭病人激光治疗决策辅助工具的研制

目的:研制基于共同决策理念的原发性房角关闭病人激光治疗决策辅助工具,为病人提供专业的决策支持,提高决策质量,促进医患共同决策。方法:基于渥太华决策支持框架和国际病人决策辅助工具标准,通过文献分析形成原发性房角关闭病人激光治疗决策辅助工具初稿;经2轮专家咨询,整合青光眼临床医学、眼科护理及公共卫生管理领域专家的意见形成修订版;通过临床调研了解病人及医务人员对工具可接受性的评价,进一步完善形成终稿。结果:共有19名专家完成专家咨询,专家积极性为95.0%、权威系数为0.918。2轮专家咨询后,该工具各级指标的协调系数分别为0.131,0.224和0.187(P<0.05)。临床调研发现,病人和医务人员对该工具的接受度高,认为其易于理解和使用,能够辅助决策。最终,原发性房角关闭病人激光治疗决策辅助工具包含阐明决策、评估决策需求、提供信息、分析风险收益、澄清价值观、引导决策制定和确认决策7项一级指标以及15项二级指标、32项三级指标。结论:原发性房角关闭病人激光治疗决策辅助工具具有一定的科学性和临床适用性,为病人参与病人安全,实现医患共同决策提供了科学、有效的支持手段。

Nd∶YAG激光周边虹膜切开对PACG急性发作期眼压的影响及安全性观察

目的 探究Nd∶YAG激光周边虹膜切开对原发性闭角型青光眼(PACG)急性发作期的治疗效果及安全性。方法 前瞻性选取2020年1月至2022年1月在首都医科大学附属北京世纪坛医院接受治疗的PACG急性发作期患者102例作为研究对象,按照随机数字表法将其分为研究组和对照组,每组各51例。对照组予以传统药物进行诊治,研究组接受Nd∶YAG激光周边虹膜切开治疗。记录并比较两组患者的术前,术后1、3、6、12个月眼压变化,术前,术后1、3、6、12个月疼痛视觉模拟评分法(VAS)评分、角膜内皮细胞[平均面积(AVE)、最大面积(MAX)、最小面积(MIN)、细胞密度(CD)、面积变异系数(CV)、面积标准偏差(SD)]变化,治疗后视野、房角情况以及并发症发生情况。结果 研究组患者术后1、3、6、12个月的眼压分别为(17.55±2.09)、(17.56±2.04)、(17.89±2.16)、(18.33±2.98)mmHg,均低于对照组[(19.87±1.98)、(20.55±1.78)、(17.89±2.16)、(18.33±2.98)mmHg],差异均有统计学意义(P<0.05)。研究组患者术后1、3、6、12个月的VAS评分分别为(4.03±0.64)、(3.22±0.15)、(2.31±0.14)、(1.99±0.13)分,均低于对照组[(4.66±0.74)、(3.55±0.12)、(2.98±0.11)、(2.32±0.15)分],差异均有统计学意义(P<0.05)。术后1个月,研究组患者的CD、CV、AVE、SD均高于对照组,MAX、MIN、六角形细胞百分数均低于对照组,差异均有统计学意义(P<0.05)。研究组患者治疗后视野缺损进展、开放角度减小发生率分别为3.92%、7.84%,均低于对照组(17.65%、23.53%),房角增大、开放角度>5°发生率分别为90.20%、62.75%,均高于对照组(45.10%、13.73%),差异均有统计学意义(P<0.05)。随访期内,两组患者发生高眼压、眼角膜水肿、眼前房渗出、眼前房出血情况及总并发症发生率比较,差异均无统计学意义(P>0.05)。结论 对于PACG急性发作期的患者,Nd∶YAG激光周边虹膜切开治疗较传统药物治疗在眼压控制、疼痛缓解以及视野缺损进展和房角变化等方面具有更显著的效果,且安全性较好,是一种有效且安全的PACG急性发作期治疗手段。

雷珠单抗注射液辅助激光周边虹膜切开术治疗闭角型青光眼的临床研究

目的观察雷珠单抗注射液联合激光周边虹膜切开术(LPL)治疗闭角型青光眼的临床效果。方法本研究为前瞻性研究,选择河南科技大学第一附属医院2021年1月至2023年6月期间收治的112例闭角型青光眼患者为研究对象,基于随机、对照原则,采用计算机分组法将其列为常规组(56例)和联合组(56例),2组患者均实施LPL治疗,联合组采用雷珠单抗注射液辅助治疗,比较2组患者的前房参数,前方周边深度,眼内新生血管参数,眼压、视力恢复情况,及不良事件发生情况。结果在不同治疗方案下,联合组的中央前房深度(CACD)、前房角宽度(ACA)、前房容积(ACV)分别为(1.95±0.27)mm、(26±5)mm、(85±10)mm3,均高于常规组[(1.52±0.31)mm、(22±5)mm、(80±10)mm3];联合组的上方前房深度、下方前房深度、鼻侧前房深度分别为(1.15±0.25)mm、(1.36±0.27)mm、(1.13±0.33)mm,均高于常规组[(0.88±0.42)mm、(0.95±0.31)mm、(0.92±0.31)mm];联合组的肿瘤坏死因子-α(TNF-α)、白细胞介素-1(IL-1)、血管内皮生长因子(VEGF)分别为(30±5)ng/ml、(105±20)pg/ml、(85±10)pg/ml,均低于常规组[(33±5)ng/ml、(120±21)pg/ml、(90±10)pg/ml];联合组治疗1个月、3个月后眼压分别为(20±5)mmHg、(15±3)mmHg,均低于常规组[(23±5)mmHg、(18±4)mmHg];视力分别为(4.28±1.24)、(4.92±1.46),均高于常规组[(3.81±0.82)、(4.33±1.21)];联合组的不良事件发生率7.1%(4/56)低于常规组23.2%(13/56)(P<0.05)。结论雷珠单抗注射辅助LPL术可进一步改善闭角型青光眼患者的前房结构,对抑制眼内新生血管生成、促进眼压及视力恢复并降低不良事件发生风险均有积极意义。

B超引导下1470 nm激光联合聚桂醇硬化剂注射治疗周围动静脉畸形的疗效分析

目的:探讨B超引导下1470 nm激光联合聚桂醇硬化剂注射治疗周围动静脉畸形的疗效。方法:选择2019年1月-2024年2月笔者科室收治并确诊为周围动静脉畸形的81例患者,按周围动静脉畸形影像学类型特征,将患者分为三组(其中Ⅰ型组14例,Ⅱ型组30例,Ⅲ型组37例),术前检测病灶大小,联合治疗后1个月复诊,对比三组患者手术治疗次数、治疗前后病灶缩小程度,分析治疗的有效性及安全性。结果:本组81例患者,治愈率为29.63%,总有效率为60.49%。病灶缩小程度和治疗总有效率均Ⅱ型组>Ⅰ型组>Ⅲ型组,Ⅲ型组治疗次数明显多于Ⅰ型组与Ⅱ型组,以上指标三组比较差异均有统计学意义(P<0.05);所有患者术后未出现呼吸困难、严重过敏、脏器损伤及血管栓塞等严重并发症。结论:B超引导下1470 nm激光联合聚桂醇硬化剂治疗周围动静脉畸形,组织损伤程度小,安全性高,疗效好,并可根据周围动静脉畸形影像学分型采取最佳治疗方案。

ALPI联合白内障超声乳化及房角黏连分离术治疗急性闭角型青光眼合并白内障临床疗效

目的:观察激光周边虹膜成形术(ALPI)联合白内障超声乳化(Phaco)及房角黏连分离术(GSL)治疗急性闭角型青光眼(AACG)合并白内障的临床疗效。方法:选取2022年6月-2024年1月于我院眼科就诊的AACG合并白内障患者90眼作为研究对象行前瞻性研究,采用随机数表法分为观察组及对照组各45眼,对照组行Phaco联合GSL治疗,观察组行ALPI联合Phaco及GSL术;并于术前及术后1周、1月、3月、6月进行随访,收集2组术前及术后最佳矫正视力(BCVA)、眼压(IOP)、前房深度(ACD)、虹膜小梁夹角(TIA)、房角分级及术后前房出血、角膜水肿、前房炎性反应等并发症发生率,统计差异。结果:术后两组患者ACD均较术前加深,TIA增宽,BCVA提升,房角分级下降(P<0.05);且观察组术后各时间较对照组TIA更大、眼压更低,差异有统计学意义(P<0.05),两组术后各时间点ACD、房角分级、BCVA均无统计学差异(均P>0.05),且术后均未发生恶性青光眼、后囊破裂等严重并发症,并发症不良率与手术疗效差异均无统计学意义(P>0.05)。结论:ALPI联合白内障超声乳化及房角黏连分离术治疗AACG合并白内障患者,能有效增大TIA,缓解虹膜前粘连,进而降低患者眼压、具有稳定的临床疗效。