原发性开角型青光眼和高眼压患者及正常人群结膜印迹细胞学检查的比较

目的：比较原发性开角型青光眼和高眼压患者及拥有健康眼球表面的正常人群的泪膜功能和印象细胞学检查的数值。
　　方法：此前瞻性研究中纳入了原发性开角型青光眼患者11例11眼(平均年龄：62.7±6.1岁),高眼压患者12例12眼(平均年龄：62.8±6.4岁)及健康人12例12眼(平均年龄：62.9±6.03岁)。这些患者均是最近被诊断出患有原发性开角型青光眼及高眼压,且之前未接受过抗青光眼方面的治疗。均行结膜印迹细胞学检查、泪膜破裂时间和基础泪液分泌试验。每组印迹细胞学检查的样本根据Nelson分级法分为0~3级。应用Kruskal-Wallis检验和Dunn多重比较检验进行统计分析。
　　结果：原发性开角型青光眼患者,高眼压患者及正常人群平均基础泪液分泌值分别为10.4±1.3,10.9±1.2和11.1±1.1 mm/5min,其差距没有统计学意义(P=0.33);三组的泪膜破裂时间分别为11.2±1.1,11.3±1.1和11.8±1.2s,其差距没有统计学意义(P=0.35)。原发性开角型青光眼患者中6眼(54.5%)为0级,5眼(45.5%)为1级。高眼压患者中6眼(50%)为0级,6眼(50%)为1级,健康人中6眼(50%)为0级,6只眼(50%)为1级(P=0.97)。
　　结论：氧化应激可能会导致青光眼,眼表疾病,泪腺功能障碍及机体杯状细胞所分泌的黏液减少。原发性开角型青光眼患者,高眼压症患者及健康人群间的印象细胞学检查数值并无显著差异。     

PNT治疗开角型青光眼及高眼压症的临床观察

目的:对比研究真空小梁成形术（pneumatic trabeculoplasty, PNT）与0.05g/L拉坦前列腺素滴眼液治疗开角型青光眼及高眼压症患者的临床效果。方法:选取我院就诊的开角型青光眼及高眼压症患者30例48眼,随机分为A,B两组,A组12例24眼行PNT治疗,B组18例24眼给予0.05g/L拉坦前列腺素滴眼液点眼,频次1次/睡前。记录两组治疗前后的视力、眼压、视野及视盘周围神经纤维层厚度变化,进行统计分析。结果:眼压:A组治疗后1~3mo平均眼压值较治疗前明显降低（P＜0.01）。B组整个治疗过程平均眼压均较治疗前明显降低（P＜0.01）。治疗后1~6mo眼压降低≥20%的眼数,A组分别占79%,62%,50%,25%,12%,0;B组分别为92%,83%,83%,79%,71%,62%,两组第3mo开始差异有统计学意义（P=0.014）。在治疗随访过程中,两组患者的视力、视野及视盘周围神经纤维层厚度均无明显变化（P＞0.05）。不良反应:A组多为一过性结膜充血及结膜下出血,且均在1wk内吸收消失;B组有8眼治疗后持续结膜充血较明显,有5例8眼患者诉不同程度刺激症状。结论:真空小梁成形术和0.05g/L拉坦前列腺素滴眼液均能有效降低开角型青光眼及高眼压症患者眼压,但前者副作用更小,而后者降眼压效果持久。     

国产拉坦前列腺素治疗开角型青光眼和高眼压症的疗效及安全性

目的:观察国产拉坦前列腺素滴眼液(见康)治疗开角型青光眼和高眼压症的临床疗效及安全性。方法:采用随机、单盲对照研究。原发性开角型青光眼或高眼压症的患者90例随机分三组,试验组:国产0.05g/L拉坦前列腺素(见康);对照组1:进口0.05g/L拉坦前列腺素(适利达);对照组2:0.04g/L曲伏前列素(苏为坦),每组30例患者。三组患者均9:00pm给药1次,疗程4wk。结果:用药2wk后,三组间治疗后眼压差异无统计学意义(P=0.673)。治疗4wk后,三组日眼压曲线各时间点眼压下降值差异无统计学意义。三组病例中均有轻度结膜充血的患者,试验组4例(13%),对照组1:3例(10%),对照组2:8例(27%)。结论:国产拉坦前列素滴眼液(见康)可有效降低眼压,安全性好,为治疗开角型青光眼及高眼压症提供了新的选择。     

曲伏前列素和噻吗心安治疗开角型青光眼和高眼压症的对照研究

目的:以噻吗心安为对照,观察曲伏前列素滴眼液降眼压效果及安全性。方法:采用随机对照法,0.04g/L曲伏前列素滴眼液1次/d或5g/L噻吗心安滴眼液2次/d,治疗原发性开角型青光眼和高眼压症,共34例,疗程12wk,观察眼压及不良反应。未发现其他眼部改变和全身副作用。结果:试验组平均日间眼压以24.83±2.97mmHg降至16.13±2.92mmHg;对照组从23.96±3.62mmHg降至16.14±2.97mmHg。试验组结膜充血较对照组明显增加。结论:曲伏前列素滴眼液对控制原发性开角型青光眼和高眼压症的眼压是有效和安全的。     

拉坦前列素与噻吗心安治疗国人开角型青光眼和高眼压症有效性安全性Meta分析

目的：系统评价拉坦前列素(Latanoprost)滴眼液与噻吗心安(Timolol)滴眼液降眼压的有效性和安全性。

方法：计算机检索PubMed,Medline,CNKI及中国生物医学文献数据库收录的,并辅以手工检索、因特网搜索的有关拉坦前列素与噻吗心安治疗原发性开角型青光眼和高眼压症的随机对照试验(RCT)。按照纳入和排除标准限定研究对象,通过Jadad评分量表进行文献质量评估后,针对眼压下降比例、药物不良反应2项内容,使用Cochrane协作网提供的RevMan 5.0软件进行Meta分析。

结果：共纳入9项RCT,合计555例患者。Meta分析结果显示：(1)拉坦前列素滴眼液与噻吗心安滴眼液降眼压效果,在 2,6,12wk时差异均有统计学意义(P<0.01),加权平均差(WMD)分别为：在2wk\,在6wk\和12wk\。(2)随访结束时,结膜充血、异物感为拉坦前列素的两种较为常见的不良反应, 但其发生率拉坦前列素组与噻吗心安组比较, 结膜充血的发生率\〖OR=2.25,95% CI(0.99,5.08)\〗,异物感的发生率\〖OR=2.48,95% CI(1.02,6.03)\〗,显示二者差异均无统计学意义。

结论：治疗原发性开角型青光眼和高眼压症,拉坦前列素降眼压效果在用药12wk内较噻吗心安好; 两者在12wk内引起结膜充血、异物感、虹膜色素加深、视野损害等的不良反应方面,差异不明显。由于纳入研究的样本量偏小,且方法学质量中等,致使本系统评价结果论证强度不高,因此还需要开展更多的高质量的临床随机对照研究,以便更客观、准确、全面地评价其疗效和安全性。     

开角型青光眼小梁切除前后搏动性眼血流量比较研究

目的：以OBF仪对开角型青光眼（primary open angle glaucoma,POAG)患者手术前后的搏动性眼血流量（pulsatile ocular blood flow,POBF）值及眼压进行测量，探讨POAG患者行小梁切除术后眼内血流变化。方法：本院诊断及手术治疗的POAG患者39例39眼，均在本院行小梁切除术，术中加用0．2g.．L^-1丝裂霉素C(mitomycin C,MMC)抗瘢痕，测量项目包括搏动眼血流量，脉搏周期内眼压变化值（pulse amplitude of IOP,PA IOP）,脉搏周期内眼容积变化值（pulse amplitude of volume,PV）,心率（pulse/heart rate,HR），最大眼压（Max-IOP），最小眼压（Min-IOP），平均眼压（Max-IOP Min-IOP）/2,Average IOP(Ave-IOP),手术前测量时间为药物治疗前，手术后测量时间为手术后1－2周，手术前后比较采用配对t检验，Ave-IOP的变化值与OBF的变化值作相关分析，结果：POAG患者手术后POBF，PV增高，Ave-IOP降低，差异有统计学,意义，Ave-IOP的变化值与OBF的变化之间有相关关系r=0.674,t=5.552,P=0.000，结论：POAG患者行小梁切除术后眼压降低有助于眼血流改善，但并不意味着所有POAG患者眼血流都得到改善，推测POAG发病部分原因是血管自身调节功能及供血异常。     

Bimatoprost/timolol fixed combination (BTFC) in patients with primary open angle glaucoma or ocular hypertension in Greece

AIM: To evaluate the efficacy and tolerability of the fixed combination of bimatoprost 0.03% and timolol 0.5% (BTFC) in patients in Greece with primary open angle glaucoma (POAG) or ocular hypertension (OHT) whose previous therapy provided insufficient lowering of intraocular pressure (IOP). METHODS: A multicenter, prospective, open-label, non-interventional, observational study of the use of BTFC in clinical practice was conducted at 41 sites in Greece. The primary endpoint was the reduction in IOP from baseline at study end, approximately 12wk after initiation of BTFC therapy. RESULTS: A total of 785 eligible patients were enrolled in the study and 97.6% completed the study. The mean±SD IOP reduction from baseline at 12wk after initiation of BTFC was 6.3±2.8 mm Hg (n=764; P<0.001). In patients (n=680) who replaced their previous IOP-lowering monotherapy (a single drug, or a fixed combination of 2 drugs in a single ophthalmic drop) with once-daily BTFC, the mean±SD IOP reduction from baseline at 12wk was 6.2±2.8 mm Hg (P<0.001). IOP was reduced from baseline in 99.2% of patients, and 58.0% of patients reached or exceeded their target IOP. Substantial mean IOP reductions were observed regardless of the previous therapy. BTFC was well tolerated, with 96.0% of patients who completed the study rating the tolerability of BTFC as “good” or “very good.” Adverse events were reported in 8.3% of patients; only 0.6% of patients discontinued the study due to adverse events. CONCLUSION: In clinical practice in Greece, BTFC is well tolerated and effectively lower the IOP in patients with POAG or OHT who requires additional IOP lowering on their previous therapy.     

Topical carbonic anhydrase inhibition increases ocular pulse amplitude in high tension primary open angle glaucoma

BACKGROUND—Ocular pulse amplitude (OPA) is reduced in normal tension primary open angle glaucoma (NTP) patients when compared with healthy age matched controls (CTL) while increased OPA appears to protect ocular hypertensive patients from visual field loss. If NTP is accompanied by vasospasm, as in roughly half of the primary open angle glaucoma (POAG) population (independent of intraocular pressure, IOP), calcium channel blockers increase OPA and thus stabilise visual fields in these patients. Current glaucoma drugs reduce IOP but do not activate (compromised) ocular perfusion.
METHODS—The influence of dorzolamide, a topical carbonic anhydrase inhibitor in standard dosage (three times daily, one eye) on OPA, IOP, blood pressure, and heart rate was investigated in a randomised, prospective, masked clinical trial assessing the acute effects of dorzolamide v placebo before and 2 days after application in 33 cataract patients with (n = 14) and without (n = 19) high tension POAG (HTP) who provided informed consent.
RESULTS—Following application of dorzolamide (D) IOP (mm Hg, mean (SEM)) in HTP_D (20.2 (0.5)/16.3 (0.5)) and in CTL_D (16.0 (0.5)/12.3 (0.5)) was highly significantly (p <0.001) reduced and was significantly (p<0.03) reduced in vehicle (V) treated eyes (HTP_V: 20.3 (0.4)/19.0 (0.4)) and CTL_V: 15.8 (0.4)/14.9 (0.3)) when compared with respective baseline measurements. OPA (mm Hg) in HTP_D (2.1 (0.1)/2.5 (0.1)) and CTL_D (2.2 (0.1)/2.6 (0.2)) eyes was significantly (p<0.05) increased and unaffected in vehicle treated eyes when compared with respective baseline measurements. Systemic perfusion variables were also unchanged.
CONCLUSION—Dorzolamide increased OPA in HTP and CTL. Drugs stimulating OPA may improve prognosis of POAGs.

Keywords: ocular pulse amplitude; primary open angle glaucoma; dorzolamide     

Correlation of optic disc morphology and ocular perfusion parameters in patients with primary open angle glaucoma

Purpose: Little information is available about the relationship between glaucomatous visual field defects, morphological changes of the optic disc and ocular blood flow. In this study, ocular blood flow parameters were correlated with parameters of optic nerve head (ONH) morphology and visual field performance in a cross‐sectional study. Methods: A total of 103 patients with primary open angle glaucoma were included. Choroidal and ONH blood flow was assessed using laser Doppler flowmetry. Retinal blood velocities and retinal vessel diameters were measured with laser Doppler velocimetry and a Retinal Vessel Analyzer, respectively. To evaluate the ONH morphology, fundus photographs were taken and confocal laser scanning tomography was performed. Results: Among all measured ocular hemodynamic parameters, the ONH blood flow was most strongly correlated to structural parameters of ONH damage and visual field loss. Reduced retinal vessel diameters were only slightly correlated with the degree of glaucomatous damage. Conclusion: Reduced blood flow in the ONH was associated with increasing amount of visual field defect and morphological changes of the ONH. Retinal vessel diameters were only marginally associated with glaucomatous optic nerve damage. Based on retinal vessel diameter determination alone, it is not possible to assess whether reduced retinal blood flow is causative or secondary in glaucoma.     

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.     

原发性开角型青光眼与24h眼压及眼灌注压的研究进展

原发性开角型青光眼是一类早期无明显临床症状,但随病情进展将导致不可逆的视神经损害及视野缺损的致盲性眼病。眼压是原发性开角型青光眼诊断及评定治疗效果的简单而又重要的指标。临床上,一些治疗中的原发性开角型青光眼患者白天就诊时间所测眼压已达靶眼压,但视神经损害却仍在进展,研究表明可能与夜间眼压的升高、24 h较大的眼压波动及夜间眼灌注压的降低有关。因此,我们对原发性开角型青光眼与眼压及眼灌注压波动的相关文献予以综述,以更好的理解三者之间的关系。     

The assessment of structural changes on optic nerve head and macula in primary open angle glaucoma and ocular hypertension

AIM: To assess morphological changes in macula, retinal nerve fiber layer (RNFL) and optic nevre head (ONH) of cases with primary open angle glaucoma (POAG) and ocular hypertension (OH) with spectral domain optic coherence tomography (OCT). METHODS: This study included 109 eyes from 62 POAG patients, 50 eyes from 30 OH patients, and 101 eyes from 53 healthy volunteers. Data gained by OCT were compared with perimetry indexes. ONH, RNFL and macula analysis were performed for all subjects. Rim area, disc area, average cup/disc (C/D) ratio, vertical C/D ratio, cup volume data were recorded during ONH analysis. Average RNFL thickness and the thickness of four quadrants (superior, inferior, nasal and temporal) was established in microns. In total, nine macular quadrants involving the foveal region mentioned in the Early Treatment Diabetic Treatment Study (ETDRS) template were measured, and average macular thickness and macular volume data were recorded during macula analysis. Differences between groups were evaluated with the one-way ANOVA test. Tukey’s multiple comparison test was performed to detect difference between groups. Receiver-operating characteristic (ROC) analysis was done for early stage POAG patients to establish sensitivity and specificity of chosen parameters in early stage POAG. Area under the receiver operating characteristic (AUROC) values were calculated to compare ROC areas. RESULTS: Statistically significant differences were found in all ONH parameters, except optic disc area. Neuroretinal rim area was identified as the parameter with the highest difference between groups (F=21.72, P<0.05). The highest correlation between ONH parameters and perimetry was observed at neuroretinal rim region (r=0.487). Inferior RNFL thickness was established as the parameter with the highest difference between groups among RNFL parameters. In the mean of all glaucoma patients, the highest correlation between data handled with OCT and mean deviation was observed in RNFL thickness. Average macular thickness was detected as the parameter with the highest difference between groups among macular parameters. The highest correlation between macula parameters and perimetry indexes was observed between average macular thickness and perimetry indexes (r=0.514). CONCLUSION: Although the assessment of ONH and the analysis of macular thickness are important in diagnosis and treatment, RNFL assessment is the most valuable parameter.     

正常眼压青光眼与原发性开角型青光眼的比较

正常眼压青光眼（ＮＴＧ）的发病率逐渐增加,日益受到眼科工作者的重视。ＮＴＧ发病隐蔽,早期诊断较其它青光眼显得更为困难和复杂,其发病机制、诊断标准及其与原发性开角型青光眼（ＰＯＡＧ）的异同等一系列问题仍无统一意见。就ＮＴＧ与ＰＯＡＧ的诊断标准,发病机制,临床表现,治疗原则以及相互关系等问题的研究进展等进行综述。     

Analysis of risk factors that may be associated with progression from ocular hypertension to primary open angle glaucoma

Background: As a multifactorial disease, glaucoma may be associated with pressure‐dependent and pressure‐independent factors. Ocular hypertension (OHT) may develop into primary open angle glaucoma (POAG) for many patients. Groups with OHT and POAG were compared for pressure‐dependent and independent risk factors. A high prevalence of any factor(s) could indicate a contribution to progression from OHT to POAG. Methods: A sample of patients with POAG (n = 438) and with OHT (n = 301) were selected from those attending a tertiary referral private glaucoma practice, and data were collected regarding age and intraocular pressure at the time of diagnosis, sex, family history of glaucoma, systemic hypertension, diabetes, Raynaud's phenomenon, migraine and myopia. Results: After multivariate analysis, older age at time of diagnosis (χ²₅ = 73.89, P < 0.001), myopia (odds ratio [OR] = 1.5, 95% confidence interval [CI] 1.0?2.2; P < 0.05), a family history of glaucoma (OR = 1.6, 95% CI 1.1?2.3; P < 0.01) and a high intraocular pressure (χ²₄ = 16.96; P = 0.002) were found to be more prevalent among those with POAG. No other significant differences could be found between the two groups. Conclusion: Patients who have OHT may be at higher risk of developing POAG if they also have myopia, a family history of glaucoma or are of older age.     

Fixed combination of latanoprost and timolol vs the individual components for primary open angle glaucoma and ocular hypertension:a systematic review and meta-analysis

AIM:To assess the effects of the fixed combination of 0.005% latanoprost and 0.5% timolol (FCLT) vs their individual components for primary open angle glaucoma (POAG) and ocular hypertension (OHT).METHODS:After searched PubMed, EMBASE, the Cochrane Library and SCI, all randomized controlled clinical trials (RCTs) and cross-over studies were included. The control groups were the mono therapy or the concomitant therapy of latanoprost and timolol. The outcomes were visual field defect, optic atrophy, mean intraocular pressure (IOP) and IOP fluctuation. The analysis was carried out in RevMan version 5.1 software.RESULTS:The post-intervention mean IOP of FCLT was significantly lower compared to timolol [mean difference (MD) -2.92, 95%CI -3.28 to -2.55, P<0.00001] and latanoprost (MD -1.11, 95%CI -1.51 to -0.72, P＜0.00001). The post-intervention IOP fluctuation was also significantly lower compared to timolol (MD -0.88, 95%CI -1.23 to -0.53, P<0.00001) and latanoprost (MD -0.63, 95%CI -1.04 to -0.22, P=0.002). The mean IOP was higher in FCLT morning dose group than the one in unfixed combination of 0.005% latanoprost and 0.5% timolol (UFCLT) (MD 1.10, 95%CI 0.81 to 1.39, P<0.00001). Otherwise, there was no difference between FCLT evening dose group and UFCLT (MD 0.34, 95% CI -0.01 to 0.69, P=0.06). There was no statistical difference for the incidence of visual field defect and optic atrophy between FCLT and the monotherapy of components.CONCLUSION:A better IOP lowering effect has been demonstrated for FCLT compared to the mono therapy of components. The IOP lowering effect was worse for FCLT morning dose and almost same for FCLT evening dose compared to the UFCLT. We need more long-term high quality RCTs to demonstrate the outcomes of visual field defect and optic atrophy.     

2%美开朗与0.5%噻吗心安滴眼液治疗开角型青光眼与高眼压症的临床对照研究

目的以噻吗心安滴眼液作对照,在原发性开角型青光眼和高眼压症患者中评价美开朗滴眼液的降眼压、内在拟交感活性作用。方法选择开角型青光眼和高眼压症患者50例50眼,随机分为美开朗组和噻吗心安组2组,各25例25眼。美开朗组滴用2%美开朗眼液,噻吗心安组滴用0.5%噻吗心安眼液,一日2次,共12周,比较两种滴眼液的降眼压作用及局部和全身副作用。结果两组患者用药后眼压均下降,与用药前相比均有显著性差异(P<0.01)。两组间眼压下降值无显著性差异(P>0.05)。用药12周,美开朗组心率平均降低3.6次,噻吗心安组心率平均降低6.5次,两者相比有显著性差异。结论美开朗滴眼液对开角型青光眼和高眼压症患者具有明显的降眼压作用,和噻吗心安滴眼液局部降眼压作用相同,但对心率的抑制作用比噻吗心安小。     

Comparison of ocular response analyzer parameters in primary open angle glaucoma and exfoliative glaucoma patients

Aim:

We sought to identify differences in the following measures of the ocular response analyser (ORA) between primary open angle glaucoma (POAG) and exfoliative glaucoma (EXG) patients: Corneal hysteresis (CH), corneal resistance factor (CRF), corneal-compensated intraocular pressure (IOPcc) and Goldmann-correlated intraocular pressure (IOPg). We also sought to relate these ORA measures with central corneal thickness (CCT).

Materials and Methods:

This cross-sectional study was conducted on a total of 162 individuals (46 EXG patients, 66 POAG patients and 50 healthy subjects without any ocular and systemic disease). ORA measurements were performed, and a minimum of three readings were obtained from each test subject. Groups were compared according to their ORA parameters.

Results:

The mean CH levels of the EXG, POAG and healthy subjects were 7.6 ± 2.1, 9.1 ± 1.9 and 9.6 ± 1.7 mmHg, respectively. CH was significantly lower in the EXG patients compared to the other groups (P < 0.001). The mean CRF levels of the EXG, POAG and healthy subjects were 9.0 ± 2.0, 10.1 ± 1.7 and 9.8 ± 1.8mmHg, respectively. CRF levels in the eyes of the EXG patients were significantly lower compared to those of either the POAG patients (P = 0.005) or the healthy subjects (P = 0.03), but there was no significant difference in CRF levels between the POAG patients and the healthy subjects (P = 0.59). There was a significant positive correlation between CH and CCT in the EXG patients and healthy subjects (P < 0.001), but this correlation was not present in the POAG patients (P = 0.70).

Conclusions:

In this study, CH and CRF were found to be significantly reduced in the eyes of EXG patients compared to both the POAG patients and healthy subjects. Reduced CH in EXG patients might result in decreased support of peripapillary scleral structure and increased damage to the optic nerve during IOP increase.     

国产与进口拉坦前列素滴眼液降眼压作用的短期效果比较

目的 比较国产与进口拉坦前列素滴眼液的短期降眼压效果。设计 随机、开放、平行对照的临床研究。 研究对象  原发性开角型青光眼患者和高眼压症患者42例。方法 对上述患者按所用药物的不同依随机表法分为A、B两组。A组28例（28眼）,滴用国产拉坦前列素滴眼液（特力洁）,B组14例（14眼）,滴用进口拉坦前列素滴眼液（适利达）,均为每日1次,每次1滴,共28天。受试者于入组当日及用药后第28天8:00、11:00、14:00、16:00测眼压,第7、14、21天则于8:00测眼压。眼压测量采用Goldmann压平眼压计,测量3次取平均值。裂隙灯显微镜观察角膜、虹膜、晶状体情况。主要指标  眼压值。结果 A组用药前眼压为（23.99±1.51）mm Hg, 用药后1～4周眼压分别为（18.04±1.27）mm Hg、（17.75±1.43）mm Hg、（17.63±1.50）mm Hg、（17.49±1.47）mm Hg,用药后眼压明显下降,与用药前相比差异有统计学意义（F=105.72,P=0.000）。B组用药前眼压为（24.37±1.55）mm Hg,用药后1～4周眼压分别为（17.91±1.35）mm Hg、（17.71±1.39）mm Hg、（17.55±1.34）mm Hg、（17.44±1.17）mm Hg,与用药前相比,用药后眼压明显下降,差异有统计学意义（F=67.85 P=0.000）。A、B两组用药前眼压比较无显著性差异（P=0.43）,用药后1～4周两组眼压比较无显著性差异（P值分别为0.76、0.93、0.86、0.89）。入组当日8:00、11:00、14:00、16:00  A、B两组眼压之间的比较无显著性差异（P值分别为0.46、0.44、0.50、0.31）,用药后28天8:00、11:00、14:00、16:00  A、B两组眼压之间的比较无显著性差异（P值分别为0.89、0.85、0.94、0.98）。用药28天时两组患者角膜、虹膜、晶状体均无异常改变。结论  本文的小样本、短期研究显示,国产拉坦前列素与进口拉坦前列素均能有效降低原发性开角型青光眼及高眼压症患者的眼压,两者之间的降眼压效果无显著差异。（眼科, 2012, 21: 111-114）     

原发性开角型青光眼的早期诊断

青光眼是全世界成人致盲的主要眼病。原发性开角型青光眼做为青光眼的一种类型,其特点是病程进展较为缓慢,多数没有明显症状,不易早期发现。许多患者就诊时已经出现了较严重的视功能障碍,且近年来该病患病率在临床上所占的比例有所上升。而对原发性开角型青光眼的早期诊断,是延缓或停止视功能进行性损害的关键。因此,综合国内外近年来相关文献,对原发性开角型青光眼的早期诊断做以下综述。     

Nutritional,lifestyle and environmental factors in ocular hypertension and primary open‐angle glaucoma: an exploratory case–control study

Purpose: To evaluate known and potential risk factors, including nutritional, lifestyle and environmental factors, differentiating patients with high‐tension primary open‐angle glaucoma (POAG) from control subjects with ocular hypertension (OHT). Methods: In 2006–2007, 111 French ophthalmologists prospectively enrolled 339 cases of POAG and 339 age‐matched controls with OHT. After a clinical examination with assessment of ocular risk factors, the ophthalmologist filled, during face‐to‐face interview, a detailed questionnaire developed by nutritionists and epidemiologist on lifestyle and environmental risk factors, including socio‐demographic variables, dietary habits related to omega‐3 fatty acids intake, smoking and alcohol drinking and professional exposure to pesticides and other chemicals. Associations of POAG with risk factors were estimated using conditional logistic regression, with adjustment for age, gender and duration of disease. Results: In the final multivariate model, by comparison with OHT, POAG was significantly associated with more frequent use of pesticides during the professional life [OR = 2.65, 95% confidence interval (CI): 1.04–6.78, p = 0.04] and with low consumption of fatty fish (OR = 2.14, 95% CI: 1.10–4.17, p = 0.02) and walnuts (OR = 2.02, 95% CI: 1.18–3.47, p = 0.01). POAG was also associated with higher frequency of heavy smoking (40 pack‐years or more, OR = 3.93, 95% CI: 1.12–13.80, p = 0.03) but not with moderate (20–40 pack‐years) and light smoking (<20 pack‐years). Conclusions: These exploratory observations suggest a protective effect of omega‐3 fatty acids and a deleterious effect of heavy smoking and professional exposure to pesticides in POAG. This will need to be confirmed in future studies.