Efficacy of Combined Phacoemulsification and Goniosynechialysis in the Treatment of Patients with Primary Angle Closure Disease and Concomitant Cataract at Preah Ang Duong Hospital in Cambodia

Background: Goniosynechialysis is a surgical procedure that has been shown to slow the progression of glaucoma in oriental eyes with chronic angle closure glaucoma. This procedure was successful in 80% of cases, and the peripheral anterior syenchiae did not exist until one year later. Nonetheless, there is little evidence of its efficacy in our context. Our study aims to investigate the efficacy of goniosynechialysis during phacoemulsification in patients with primary angle closure disease and concomitant cataract. Methods: This was an observational, prospective study. The intra-ocular pressure, need for anti-glaucoma drugs, visual acuity, the extent of synechiae, anterior chamber depth, surgical success rate, and other indicators were monitored for at least three months following surgery. Results: This study included 114 patients (118 eyes), 61 with chronic angle closure glaucoma (51.69%), 33 with primary angle closure (27.97%), and 24 with acute attack angle closure (20.34%), who were surgically treated with phacoemulsification and goniosynechialysis (Phaco-GSL). The mean intra-ocular pressure had significantly decreased three months after surgery (pre- vs post-op: 22.04 ± 10.86 vs 15.41 ± 6.06 mmHg, p-value p-value p-value p-value p-value Conclusion: Regardless of the type of glaucoma, combined phacoemulsification-goniosynechialysis is effective in lowering pressure, restoring vision, reducing the need for anti-glaucoma drugs, and preventing the synechial recurrence. Success was higher in eyes with less extensive synechiae. Phaco-GSL is safe and effective in the treatment of primary angle closure diseases with co-existing cataract.

Surgical treatment for primary angle closure-glaucoma: a Meta analysis

AIM To evaluate the efficacy and safety of trabeculectomy, phacotrabeculectomy plus intraocular lens implantation (phacotrab+IOL group) and phacoemulsification with IOL (phaco+IOL) in primary angle-closure glaucoma(PACG). METHODS: It was a systematic review and meta-analysis, randomized controlled trials(RCT) and clinical controlled trials (CCT) were collected through electronic searches of the Cochrane Library, PubMed, EMbase, Wanfang Database online, Chinese journal Full-text Database, Chinese Scientific Journals Full-text Database (from the date of building the database to October 2010) We also checked the bibliographies of retrieved articles. M the related data that matched our standards were abstracted. The quality of included trials was evaluated according to the Dutch Cochrane Centre. Rev Man 5.0 software was used for Meta-analysis. RESULTS: A total of 5 RCT and 11 CCT involving 1495 eyes were included. The results of meta-analysis showed that phacotrab+IOL group was superior than trabeculectomy(trab group) (MD -3.93,95% CI [-7.31, -0.54]) which was also superior than phaco+IOL group(MD 0.52,95%CI [0.10, 0.95]) in decreasing Intraocular Pressure(IOP). Phacotrab group(MD -1.45,95%CI [-1.68, -1.22])and phaco group (MD-1.12,95% CI [-1.87, -0.37])are both deeper than trab group in the anterior chamber depth. In increasing the coefficient of outflow facility of aqueous humor (C values) there was no statistical difference in the three groups. And there was no statistical difference between phacotrab groups and phaco groups in visual acuity but phacotrab group was superior than phaco group (MD 1.07, 95% CI [0.73, 1.40])in the use of IOP-lowering drugs. There was no statistical difference among three groups. CONCLUSION: Current evidence suggests that phacotrab+IOL group was superior than tab group which was also superior than phaco+IOL group in decreasing IOP. Phacotrab group and phaco group are both deeper than trab group in the anterior chamber depth. Phacotrab group was superior than phaco group in the use of IOP-lowering drugs.

Diffusion tensor imaging of optic nerve and optic radiation in primary chronic angle-closure glaucoma using 3T magnetic resonance imaging

AIM: To evaluate the value of quantitative diffusion tensor imaging (DTI) in assessing the axonal and myelin damage of the optic nerves and optic radiations in patients with chronic primary angle -closure glaucoma (PACG) by using high -field magnetic resonance (MR) imaging (3T). METHODS: Twenty patients with bilateral chronic PACG and twenty age - and sex matched disease -free control subjects were enrolled. Conventional MRI and DTI were performed on all subjects using 3T MR scanner. Mean diffusivity (MD), fractional anisotropy (FA), axial diffusivities (AD) and radial diffusivities (RD) of each optic nerve and each optic radiation were measured by using post -processing software of DTI studio 2.3, and then compared between left eyes and right eyes and between patients group and control group. The pairedsample t- test were used. RESULTS: There was no abnormality in the shape and signal intensity of the optic nerves and optic radiations in patients group and control group on the conventional MRI. No significant differences were observed in the FA, MD, AD and RD between the right and left optic nerves and optic radiations within patients group and control group (P>0.05). The optic nerves and optic radiations of patients with chronic PACG, as compared with control subjects, had significantly higher MD, AD, RD and significantly lower FA (P<0.05). CONCLUSION: The diffusivity of optic nerves and optic radiations in chronic PACG group showed abnormal and diffusivity parameters could be used markers of axonal and myelin injury in glaucoma.

The association between matrix metalloprotease-9 gene polymorphisms and primary angle-closure glaucoma in a Chinese Han population

AIM:To examine the association between the single nucleotide polymorphisms (SNPs)of matrix metalloprotease-9 (MMP-9) gene and primary angleclosure glaucoma(PACG)in a Chinese Han population.METHODS:DNA samples were extracted from peripheral-blood mononuclear cells of 214 PACG patients and 224 healthy controls.Genotyping of rs3918249,rs3918254,rs17577 and rs3787268 in MMP-9was performed using polymerase chain reaction restriction fragment length polymorphism(PCR-RFLP)analysis and the direct sequencing technique.The association between these genetic polymorphisms and risk of PACG was estimated by χ2 test.RESULTS:The distributions of rs3918249,rs3918254,rs17577 and rs3787268 genotypes among cases and healthy controls were compatible with that from HardyWeinberg equilibrium(HWE,P】0.05).The increased frequency of CC and CT genotypes of rs3918254 were observed in PACG patients compared to healthy controls[P=0.006,P corrected(Pcorr)=0.048].The haplotype analysis showed that the CCGG haplotype was nominal associated with PACG(P=0.015),however,the significant was lost when the Bonferroni correction was used(Pcorr=0.105).CONCLUSION:Our results revealed that rs3918254 in MMP-9 may be a susceptible locus to PACG in China,people with the CC and CT genotypes of rs3918254 are more susceptible to PACG.The susceptibility to PACG inChinese Han patients may be not influenced by SNPs rs3918249,rs3787268 and rs17577 in MMP-9.

Phacoemulsification versus combined phacotrabeculectomy in the treatment of primary angle-closure glaucoma with cataract: a Meta-analysis

AIM： To compare the efficacy and safety of phacoemulsification（Phaco） against combined phacotrabeculectomy（Phacotrabe） in primary angle-closure glaucoma（PACG） with coexisting cataract.·METHODS： By searching electronically the Pub Med,EMBASE, Scientific Citation Index and Cochrane Library published up from inception to January 2014, all randomized controlled trials that matched the predefined criteria were included. The quality of included trials was evaluated according to the guidelines developed by the cochrane collaboration. And the outcomes estimating efficacy and safety of two different surgical treatments were measured and synthesised by Rev Man 5.0.· RESULTS： Five randomized controlled trials were selected and included in Meta-analysis with a total of468 patients（468 eyes） with both PACG and cataract. We found that Phacotrabe had a greater intraocular pressure（IOP） lowing effect [preoperative IOP： weighted mean difference（WMD）=0.58, 95% confidence intervals（95% CI,-0.53 to 1.69）, P =0.31; postoperative IOP： WMD =1.37,95% CI（0.45 to 2.28）, P =0.003], a lower number of antiglaucoma medications [risk ratio（RR）=0.05, 95% CI（0.02 to 0.18）, P 〈0.00001] needed postoperatively and less serious damage of optic nerve [RR =0.48, 95% CI（0.21 to 1.07）, P =0.07], but a higher risk of complications[odds ratio（OR）=0.04, 95% CI（0.01 to 0.16）, P 〈0.00001]compared with Phaco. The rest studies indicated that there had no significantly difference between the two surgical methods for postoperative best-corrected visual acuity（BCVA） [WMD =-0.05, 95% CI（-0.14 to 0.05）, P =0.32] and loss of visual field [RR=1.06, 95% CI（0.61 to1.83）, P =0.83].·CONCLUSION： Phaco alone compared with Phacotrabe had a better effect in IOP reduction, whereas the securitydecline. Considering the number of sample size, our results remains to be further studied.

The safety and efficacy of modified minimally invasive trabeculectomy for the treatment of primary chronic angle-closure glaucoma

Background: Primary chronic angle-closure glaucoma(PCACG) is one of the main types of glaucoma in China. Trabeculectomy is the most commonly used glaucoma filtration surgery for glaucoma in the world. Conventional trabeculectomy is prone to anesthesia-related complications intraoperative and operationrelated complications postoperative in PCACG treatment. Modified minimally invasive trabeculectomy maybe can reduce the incidence of complications.Methods: We conducted a prospective case series study and performed modified fornix-based trabeculectomy in 27 patients(30 eyes) under topical anesthesia; we then observed intraoperative anesthesia and cooperation ef ect, intraoperative and postoperative complications, preoperative and postoperative visual acuity, intraocular pressure(IOP), visual field, and the use of ocular hypotensive drugs. The patients were followed up for at least 12 months.Results: All operations were completed successfully with no intraoperative complications. All 27 patients(30 eyes) were followed up for at least 12 months. No significant decrease in visual acuity was observed at days 1 or 7 and at months 1, 3, 6, and 12 after operation; however, a signii cant decrease in IOP was observed at days 1 and 7 and at months 1, 3, 6, and 12 after operation. Moreover, no significant progression in visual field mean defect was observed at month 12 after operation, and the number of ocular hypotensive drugs required was significantly reduced at months 6 and 12 after operation. By month 12 after operation, the overall success rate was 93.33%(28/30).Conclusions: Modii ed minimally invasive trabeculectomy is safe and ef ective for the treatment of PCACG.

Primary Chronic Angle-closure Glaucoma in Chinese——A Clinical Exploration of Its Pathogenesis And Natural Course

Fourty-three cases (86 eyes) of primary chronic angle-closure glaucoma were randomly selected. An additional 44 cases (77 eyes) of primary acute angle-closure glaucoma and 30 normal subjects (34 eyes) were also randomly enrolled as control groups for comparison in the clinical study. Ultrasonic biometric measurements of the anterior chamber depth, lens thickness and axial length of the eyeball were performed. Using an potic microgauge attached to the slit-lamp, the entrance of anterior chamber angle was...

Increased aquaporin-1 levels in lens epithelial cells with primary angle-closure glaucoma

AIM： To determine the levels of aquaporin-1（AQP-1） in the lens epithelial cells（LECs） of primary glaucoma and to clarify its correlation with lens thickness.METHODS： This study comprised 64 eyes of 64 patients with primary glaucoma, who were divided into 3 groups： 25 eyes of 25 patients with acute primary angle-closure glaucoma（APACG）, 19 eyes of 19 patients with chronic primary angle-closure glaucoma（CPACG） and 20 eyes of 20 patients with primary open angle glaucoma（POAG）. This study also included 12 eyes of 12 patients with senile cataract as controls. The levels of AQP-1 in LECs were examined by real-time quantitative polymerase chain reaction（RT-q PCR） and immunohistochemistry. The lens thickness was measured by A-scan ultrasonography. RESULTS： The AQP-1 m RNA levels of LECs were 0.84±0.27, 0.69±0.34, 0.44±0.19 and 0.51±0.21 in APACG, CPACG, POAG and senile cataract group, respectively. The levels of AQP-1m RNA were significantly higher in PACG groups compared with those in senile cataract and POAG group（all P〈0.05）. The immunohistochemistry showed the AQP-1 expression were strong-positive in PACG groups, but weak-positive in senile cataract and POAG group. A positive correlation was found between AQP-1 m RNA levels and the lens thickness（r=0.645, P〈0.001）. CONCLUSION： These findings show that the higher expression of AQP-1 in LECs may contribute to increased lens thickness, which might be associated with the occurrence and development of PACG.

The effect of lens parameters on the development of the primary angle-closure glaucoma

Objective ：To investigate the role the lens dimensions played on the pathogenesis of primary angle-closure glaucoma. Methods：38 eyes of 20 patients with primary angle-closure glaucoma （PACG） and 35 eyes of 22 normal individuals without ocular abnormalities were examined. The anatomical parameters of the lens and other structures of the anterior segment were calculated using B ultrasound, computer image processing and ultrasound biomicroscopy （UBM）. The parameters were compared between the patients and normal subjects. Correlation analysis was used to determine the relationship between the radii of curvature of the anterior lens surface （RCALS） and the other parameters of the anterior segment. Results：Compared with the normal eyes, the eyes of PACG had thicker lens, steeper curvature of anterior lens surface, decreased depth of the anterior chamber, narrower chamber angle, and more anterior position of the ciliary bodies and lens. All these differences were significant（P 〈 0.05 or P 〈 0.01）. In the PACG group, the RCALS had significantly negative correlation with the central and peripheral lens thickness （P 〈 0.01 and P 〈 0.05 respectively）, and had positive correlation with relative lens position, anterior chamber depth（ACD）, angle-open distance at 500 um（AOD500）, trabecular iris angle （TIA） and trabecular ciliary processes distance（TCPD, P 〈 0.05 or P 〈 0.01 ）. Conclusion：The occurrence of PACG is relevant to the abnormal anatomical structures of the anterior segment. Among all factors, the lens parameters play an important role in the pathogenesis. Increased lens thickness, relative more anterior position of lens, especially steepened curvature of anterior lens surface are predisposing factors of the pathologic phenomenon in PACG including pupillary blockage, shallow anterior chamber, secondary closure of chamber angle and elevation of intraocular pressure.

Mechanism and Etiology of Primary Chronic Angle Closure Glaucoma

The ocular anatomic features, pupil-blocking force, status of angle synechiae closure and positivity of provocative tests were compared between the primary chronic angle closure glaucoma (PCACG) and primary a-cute angle closure glaucoma (PAACG) by using ultrasonic biometry, computerized anterior ocular segment image processing technique, gonioscopy and provocative tests. The studies showed that the anterior chamber depth of PAACG was shallower than that of PCACG; the pupil-blocking force of PAACG was st...

Refractive errors and biometry of primary angle-closure disease in a mixed Malaysian population

AIM： To assess the refractive status, anterior chamber depth （ACD） and axial length （AL） of patients with primary angle-closure disease （PACD）. METHODS： Retrospective cohort. Data was collected from charts of all PACD patients treated from April 2013 to December 2015. Analysis was done on 137 patient charts with complete biometric data. Patient demographics, PACD type, refractive status （spherical equivalent）, ACD and AL were studied. RESULTS： The median age of 137 subjects [53 with primary angle-closure suspects （PACS）, 27 with primary angle- closure （PAC） and 57 with primary angle-closure glaucoma （PACG）] was 68y （range 21-88y）. The majority was Chinese （n=68; 49.6%） and most of them were women （n=75; 54.7%）. The distribution of myopia （n=51; 37.2%） and hyperopia （n=49; 35.8%） was similar. The ACD was shallower in myopes compared to hyperopes （P=-0.02） and emmetropia （P=-0.049） but the AL was not significantly different between groups. There were no patients blind from PACG. CONCLUSION： Both myopia and hyperopia can occur in PACD. Despite a shallower ACD in angle closure myopes, the AL was not different between groups.

Evaluating correlation between the ocular biometry and genetic variants of MYOC and ABCA1 with primary angleclosure glaucoma in a cohort from northern China

AIM: To investigate whether the gene variants in MYOC and ABCA1 are associated with primary angle-closure glaucoma(PACG) and anterior chamber depth(ACD) and axial length(AL) in samples from northern China. METHODS: The present case-control association study consisted of 500 PACG patients and 720 unrelated controls. Each participant was genotyped for eleven single nucleotide polymorphisms(SNPs) in MYOC and ABCA1 genes(rs12076134, rs183532, rs235875 and rs235913 in MYOC, rs2422493, rs2487042, rs2472496, rs2472493, rs2487032, rs2472459 and rs2472519 near ABCA1) using an improved multiplex ligation detection reaction(iMLDR) technique. The genetic association analyses were performed by PLINK using a logistic regression model. The association between genotypes and ocular biometric parameters was performed by SPSS using generalized estimation equation. Bonferroni corrections wereimplemented and the statistical power was calculated by the Power and Sample Size Calculation. RESULTS: Two SNPs rs183532 and rs235875 as well as a haplotype TTC in MYOC were nominally associated with PACG despite the significance was lost after Bonferroni correction. No association was observed between ABCA1 and PACG, neither did the association between these variants and ACD as well as AL. CONCLUSION: The present study suggests MYOC and ABCA1 do not play a part in the pathogenesis of PACG as well as the regulation of ocular biometric parameters in a northern Chinese population. Further investigations with large sample size are needed to verify this consequence.

Studies of Primary Angle Qosure Glaucoma in China

The resent researches on primary angle closure glaucoma (PACG) in China were reviewed. The prevalence of PACG (0.41%) in chinese is between the Caucasian and Eskimos, and chronic type is the dominant type in PACG. However, with the economic development and medical care improvements, the prevalence condition of PACG may change; several researches discovered that the mechanism of PACG, especially the chronic type, is not only because of pupil-blocking but also closely related to the mechanism of crowding of peripheral iris and the anterior location of the ciliary body. We supposed that PACG can be divided into several subtypes based on this machnism. Also, we believe that the use of ultrasound biomicroscopy (UBM) and ophthalmic laser in China has promoted the research of PACG and improved the level of prevention and treatment of PACG. Eye Science 1997; 13 : 120- 124.

Association between choroidal thickness and anterior chamber segment in eyes with narrow or open-angle

AIM: To investigate the relationship between choroidal thickness and anterior chamber segment in subjects with eyes with narrow or open-angle. METHODS: The subfoveal choroidal thickness was measured with enhanced depth -imaging optical coherence tomography and anterior chamber parameters were measured with ultrasound biomicroscopy in one eye of 23 subjects with open-angle eyes and 38 subjects with narrow-angle eyes. The mean age was 59.52 +/- 7.04y for narrow-angle subjects and 60.76 +/- 7.23y for open angle subjects (P=0.514). Multivariate linear regression analysis was performed to assess the association between choroidal thickness and narrow -angle parameters. RESULTS: There were no differences in subfoveal choroidal thickness between open - and narrow-angle subjects (P=0.231). Anterior chamber parameters, including central anterior chamber depth, trabecular iris angle, iris thickness 500 mu m from the scleral spur (IT500), and ciliary body thickness at 1 mm and 2 mm from the sclera! spur (CBT1, CBT2) showed significant differences between the two groups (P<0.05). Subfoveal choroidal thickness showed negative correlation (beta=-0.496, P=0.016) only with anterior chamber depth in the open angle group and with age (beta=-0.442, P=0.003) and 11500 (beta=-0.399, P=0.008) in the narrow-angle group. However, subfoveal choroidal thickness was not correlated with trabecular iris angle, anterior chamber depth, ciliary body thickness, or central corneal thickness in the narrow-angle group. CONCLUSION: Choroidal thickness does not differ in the two groups and has not correlated with anterior chamber parameters in narrow-angle subjects, suggesting a lack of relationship between choroidal thickness and primary angle-closure glaucoma.

COVID-19疫情暴发后急性PACG发作影响因素分析

目的分析新型冠状病毒感染(COVID-19)疫情暴发后急性原发性闭角型青光眼(PACG)患者在拟行青光眼手术患者中的构成比及发病的影响因素。方法采用横断面研究,以整群抽样法,通过医院信息化系统收集COVID-19疫情暴发后徐州市第一人民医院2022年12月16日至2023年1月16日住院拟行青光眼手术的患者141例及2021—2022、2020—2021、2019—2020年同期(12月16日至次年1月16日)住院拟行青光眼手术的患者231例。选取其中疫情暴发后急性PACG患者92例92眼为研究组,2021—2022年同期住院的急性PACG患者21例21眼为对照组。分析观察期内拟行手术的各类型青光眼患者构成比和急性PACG患者在拟行青光眼手术患者中的构成比及其临床特征,包括年龄、性别、视力、眼压、房角关闭程度。通过电话回访形式获得患者COVID-19后抗感冒药物服用情况、生活习惯和心理情绪变化(包括日饮水量和焦虑)等流行病学资料,采用医院抑郁和焦虑量表(HADS)评估研究组患者焦虑程度,分析疫情暴发后急性PACG患者发作的诱发因素。结果疫情暴发后1个月内徐州市第一人民医院急性PACG患者占比较2021—2022、2020—2021及2019—2020年同期显著增加,差异均有统计学意义(χ2=31.066、33.331、20.804,均P<0.001)。研究组与对照组不同等级视力眼数分布情况、眼压、眼压≥30 mmHg(1 mmHg=0.133 kPa)者及不同房角状态眼数分布情况比较,差异均无统计学意义(均P>0.05)。对照组发病期间患者无COVID-19及服用抗感冒药物等病史。研究组发病期间92例(占100%)患者新型冠状病毒核酸检测结果均为阳性,其中57例(占61.96%)有口服抗感冒药物史;同期住院其他类型青光眼患者49例,新型冠状病毒核酸检测结果均为阳性(占100%),20例(占40.82%)有口服抗感冒药物史。研究组急性PACG患者和同期其他类型青光眼患者口服抗感冒药物人数占比比较,差异有统计学意义(χ2=5.764,P=0.016)。研究组在COVID-19疫情暴发期间,诉日饮水量较之前有不同程度增加;研究组焦虑患者76例,占82.6%。多重线性回归分析显示:眼压=19.052+0.009×日饮水量+0.858×HADS评分(R 2=0.780),日饮水量和HADS评分的标准化回归系数分别为0.542和0.452,日饮水量较HADS评分对眼压影响更大。结论COVID-19疫情暴发后急性PACG患者在拟行青光眼手术患者中所占比率显著升高,可能与口服含血管收缩剂或抗组胺成分的抗感冒药物、日饮水量增加、焦虑等生活习惯和心理情绪变化等诱发因素有关。

Comparison of combined phacotrabeculectomy with trabeculectomy only in the treatment of primary angle-closure glaucoma

Background Trabeculectomy has become a mainstream treatment in intraocular pressure （lOP） reduction for primary angle-closure glaucoma （PACG）; combined trabeculectomy and cataract surgery was reported to reduce lOP and simultaneously improve vision for patients with PACG and coexisting cataract. This study was specialized to compare the efficacy and safety of combined phacotrabeculectomy with that of trabeculectomy only in the treatment of PACG with coexisting cataract. Methods This is a comparative case series study. Thirty-one patients （31 eyes） with PACG and coexisting cataract were enrolled. Of these, 17 underwent phacotrabeculectomy and 14 underwent trabeculectomy alone, lOP, filtering blebs, and complications were compared at the final follow-up. Complete success was defined as a final lOP less than 21 mmHg without lOP-lowering medication. Results After 10 months of postoperative follow-up, the phacotrabeculectomy and trabeculectomy groups showed no significant differences regarding lOP reduction （（20.59±7.94） vs. （24.85±14.39） mmHg, P=0.614）, complete success rate （88% vs. 71%, P=0.370）, formation rate of functioning blebs （65% （11/17） vs. 93% （13/14）, P=0.094）, and complications （41% （7/17） vs. 57% （8/14）, P=0.380）. lOP-lowering medication was not required for most of the patients in both groups. Additional surgery interventions, including anterior chamber reformation and phacoemulsification, were needed in the trabeculectomy group, whereas no surgery was needed postoperatively in the phacotrabeculectomy group. Conclusion Phacotrabeculectomy and trabeculectomy treatments exhibit similar lOP reduction, successful rates, and complications when it comes to treating PACG patients with coexisting cataract, although additional surgery intervention may be needed for a few cases with cataract and complications after trabeculectomy.

Decision-making Impairments in Primary Angle-closure Glaucoma Patients

Background： Primary angle-closure glaucoma （PACG） is a common eye disease and a common cause of blindness. Inappropriate medical decisions severely affect the prognosis. This study investigated decision-making under risk in PACG patients.Methods： Thirty patients with first acute attack of PACG before surgery and thirty healthy controls were included in the study. Decision-making under risk was evaluated with the game of dice task （GDT）. The results of Eysenck Personality Questionnaire （EPQ） and GDT between PACG patients and healthy controls were compared. Results： Risky decisions in PACG patients were more than those in healthy controls as measured by mean score ofGDT （ 12.47 ±5.72 vs. 4.33± 3.30, P 〈 0.001）. Higher neuroticism score in EPQ was found in PACG patients compared to healthy controls （14.97 ± 3.93 vs. 9.90 ± 4.49, P 〈 0.001 ）. Neuroticism scores in EPQ were associated with decision-making performance （r = 0.417, P = 0.001 ）. Conclusions： Neuroticism positively correlated with risky decisions. Decision-making might be influenced by neuroticism. Future studies will show whether therapy compliance will be improved by emotional management and psychological intervention in PACG patients.

Bilateral simultaneous primary acute angle-closure glaucoma

Dear Editor,Acute primary angle-closure glaucoma(PACG)is an important cause of blindness in East Asia.1 It is estimated that the overall prevalence of PACG will increase from 1.44%to 2.01%from 2020 to 2050.2 Acute PACG is typically related to increased high intraocular pressure(IOP),with symptoms including red eye,blurred vision,nausea,vomiting,and headache.Delay in timely IOPlowering treatment can result in permanent optic nerve damage and vision loss.

SD-OCT检测Nd∶YAG激光周边虹膜切除术后黄斑区视网膜厚度变化

目的:探讨Nd∶YAG激光周边虹膜切除术(LPI)对原发性闭角型青光眼(PACG)患者黄斑区视网膜厚度的影响。方法:前瞻性研究。选取2019-10/2021-10我院PACG患者30例30眼为PACG组,同期健康体检者20名20眼为正常对照组(随机选取一眼)。PACG组患者接受LPI治疗,术后随访1mo。两组受试者均行最佳矫正视力(BCVA)、眼压、角膜内皮细胞、IOL Master 500光学测量仪测量前房深度(ACD)及眼轴长度(AL)、频域光学相干断层扫描(SD-OCT)检查黄斑区视网膜厚度。比较两组受试者及PACG组患者LPI前后ACD、眼压、AL和黄斑区视网膜厚度,并行相关性分析。结果:PACG组患者术后1wk, 1mo ACD较术前变深(均P<0.05)。PACG组患者手术前后眼压和AL均无差异(均P>0.05)。PACG组患者术前黄斑中心区,内外环上方、颞侧、下方、鼻侧,共9个区域视网膜厚度分别为243.50±13.24、324.50±13.46、308.83±15.94、310.00±14.24、314.50±16.29、300.67±19.95、290.17±12.58、302.40±16.37、307.33±14.84μm,正常对照组相应部位分别为266.14±16.16、342.67±15.86、327.95±16.41、337.85±13.03、341.24±15.58、313.76±17.59、290.24±16.29、303.81±13.91、323.01±14.80μm,两组间中心区、内环上方、颞侧、下方、鼻侧比较均有差异(均P<0.05)。PACG组术后1wk黄斑区9个区域视网膜厚度分别与术前相比均增加,术后1mo接近术前水平,但手术前后各分区比较均无差异(均P>0.05)。结论:与正常受试者比较,PACG患者黄斑区视网膜厚度较薄。PACG患者LPI术后早期黄斑区视网膜可变厚。

Long-term intraocular pressure fluctuation of primary angle closure disease following laser peripheral iridotomy/iridoplasty

Background Many studies indicated that short-term and long-term intraocular pressure （IOP） fluctuations in primary open angle glaucoma patients might lead to glaucomatous progression. However, seldom study has evaluated the long-term fluctuation of IOP in primary chronic angle closure diseases. The objective of this study was to investigate the long-term IOP fluctuation of primary angle closure diseases and its associations following laser peripheral iridotomy （LPI） with or without laser peripheral iridoplasty.Methods A total of 158 patients with primary angle closure suspect （PACS, n=21）, primary angle closure （PAC, n=81） and primary angle closure glaucoma （PACG, n=55） had been treated by LPI with or without laser peripheral iridoplasty and followed up for more than 12 months. IOP was measured with Goldman applanation tonometer. Multivariate linear regression with generalized estimating equation （GEE） regression models was used to evaluate the association of long-term IOP fluctuation （maximum IOP minus minimum IOP） with gender, age, baseline IOP, baseline peripheral anterior synechia （PAS）,baseline vertical cup/disc ratio （VCDR）, baseline mean deviation （MD）, need for IOP-lowering medications.Results IOP fluctuation during follow-up in PACS, PAC and PACG groups were （4.83±2.90）, （5.67±3.35）, and （9.40±7.14）mmHg, respectively. IOP fluctuation was strongly correlated with baseline IOP （r=0.356, P 〈0.001）, PAS （r=0.374, P 〈0.001）.IOP fluctuation was higher in patients with higher baseline IOP （0.18 mmHg per unit increase, 95% CI： 0.05-0.31 mmHg）.Conclusions Long-term IOP fluctuation in PACG group was larger than that in PACS or PAC group. Eyes with higher baseline IOP were observed to have larger long-term IOP fluctuation.