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Comparing benzodiazepine-ketamine and benzodiazepine-fentanyl sedation in phacoemulsification: A double-blind crossover non-inferiority clinical trial (BEKEF study) 比较苯二氮卓-氯胺酮与苯二氮卓-芬太尼镇静在超声乳化术中的作用:一项双盲交叉非劣效性临床试验(BEKEF)
Pub Date : 2025-04-03 DOI: 10.1016/j.aopr.2025.04.001
Adriano Cypriano Faneli , Ricardo Danilo Chagas Oliveira , Pablo Amado , Eduardo F. Marback , Rodrigo Amaral Torres , Juliana Fernandes Marback , Larrie Laporte , Caio Vinicius Saito Regatieri , Cristina Muccioli

Background

Topical anesthesia for cataract surgery often requires adjunctive sedation to manage intraoperative discomfort and improve patient cooperation. Ketamine and fentanyl, combined with benzodiazepines, are commonly used sedation regimens, but their comparative safety and efficacy in the cataract surgery context remain underexplored. This study aimed to evaluate whether ketamine combined with midazolam is non-inferior to fentanyl combined with midazolam for sedation during phacoemulsification, with a non-inferiority margin of 10%.

Methods

This prospective, double-blind, crossover, non-inferiority trial randomized 75 patients to receive both sedation regimens for bilateral phacoemulsification. A 15-day washout period was implemented between surgeries. Adequate sedation was defined as a Ramsay Sedation Scale score of 2–3. The primary outcome was sedation adequacy, with secondary outcomes including patient and surgeon satisfaction, surgical metrics, and complications.

Results

Of the 75 randomized patients, 65 (130 eyes) completed the study. Adequate sedation was achieved in 86.2% of cases with ketamine and 89.2% with fentanyl, with a within-participant difference of 3.1% (95% CI: −2.3%–5.3%), confirming non-inferiority. Patient satisfaction scores were similarly high between regimens (ketamine: 4.87 ​± ​0.36; fentanyl: 4.91 ​± ​0.28; P ​= ​0.45). Complications were infrequent, with two cases of nausea and two of bradycardia in the fentanyl group and one case of nausea and two of hypertension in the ketamine group.

Conclusions

Ketamine combined with midazolam is a safe and effective alternative to fentanyl-based sedation for cataract surgery, providing comparable sedation quality and satisfaction. These findings support ketamine's use in cataract surgery.
背景:白内障手术的表面麻醉通常需要辅助镇静来控制术中不适和提高患者的配合。氯胺酮和芬太尼与苯二氮卓类药物联合使用是常用的镇静方案,但它们在白内障手术中的相对安全性和有效性仍未得到充分研究。本研究旨在评价氯胺酮联合咪达唑仑在超声乳化术中的镇静作用是否不劣于芬太尼联合咪达唑仑,其非劣效裕度为10%。方法本前瞻性、双盲、交叉、非劣效性试验随机选取75例患者接受两种镇静方案的双侧超声乳化术。两次手术之间有15天的洗脱期。充分镇静的定义为拉姆齐镇静量表评分2-3分。主要结局是镇静充足性,次要结局包括患者和外科医生满意度、手术指标和并发症。结果在75名随机患者中,65名(130只眼睛)完成了研究。86.2%的氯胺酮组和89.2%的芬太尼组达到了足够的镇静效果,参与者内差异为3.1% (95% CI: - 2.3%-5.3%),证实了非劣效性。两组患者满意度得分相似(氯胺酮:4.87±0.36;芬太尼:4.91±0.28;P = 0.45)。并发症很少,芬太尼组有2例恶心和2例心动过缓,氯胺酮组有1例恶心和2例高血压。结论氯胺酮联合咪达唑仑是芬太尼类白内障手术中安全有效的镇静替代方案,镇静质量和满意度相当。这些发现支持氯胺酮在白内障手术中的应用。
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引用次数: 0
Construction and validation of risk prediction models for different subtypes of retinal vein occlusion 不同亚型视网膜静脉闭塞风险预测模型的构建与验证
Pub Date : 2025-03-17 DOI: 10.1016/j.aopr.2025.03.003
Chunlan Liang , Lian Liu , Wenjuan Yu , Qi Shi , Jiang Zheng , Jun Lyu , Jingxiang Zhong

Purpose

While prognostic models for retinal vein occlusion (RVO) exist, subtype-specific risk prediction tools for central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO) remain limited. This study aimed to construct and validate distinct CRVO and BRVO risk stratification nomograms.

Methods

We retrospectively analyzed electronic medical records from a tertiary hospital in Guangzhou (January 2010–November 2024). Non-RVO controls were matched 1:4 (CRVO) and 1:2 (BRVO) by sex and year of admission. The final cohorts included 630 patients (126 CRVO cases and 504 controls) and 813 patients (271 BRVO cases and 542 controls). Predictors encompassed clinical histories and laboratory indices. Multivariate regression identified independent risk factors, and model performance was evaluated using the area under the receiver operating characteristic curve (AUC), calibration plots, and decision curve analysis (DCA).

Results

The CRVO-nom and BRVO-nom highlighted significant predictors, including the neutrophil-to-lymphocyte ratio (NLR). Additional risk factors for CRVO included high-density lipoprotein cholesterol (HDL-C), platelet distribution width (PDW), history of diabetes, cerebral infarction, and coronary artery disease (CAD). For BRVO, significant predictors included a history of hypertension, age, and body mass index (BMI). The AUC for CRVO-nom was 0.80 (95% CI: 0.73–0.87) in the training set and 0.77 (95% CI: 0.65–0.86) in the validation set, while BRVO-nom yielded an AUC of 0.95 (95 ​%CI: 0.91–0.97) in the training set and 0.95 (95% CI: 0.89–0.98) in the validation set.

Conclusions

CRVO and BRVO exhibit distinct risk profiles. The developed nomograms—CRVO-nom and BRVO-nom—provide subtype-specific risk stratification with robust discrimination and clinical applicability. An online Shiny calculator facilitates real-time risk estimation, enabling targeted prevention for high-risk populations.
目的虽然存在视网膜静脉闭塞(RVO)的预后模型,但针对视网膜中央静脉闭塞(CRVO)和视网膜分支静脉闭塞(BRVO)的亚型特异性风险预测工具仍然有限。本研究旨在构建和验证不同的CRVO和BRVO风险分层图。方法回顾性分析广州市某三级医院2010年1月- 2024年11月的电子病历。非rvo对照组按性别和入院年份按1:4 (CRVO)和1:2 (BRVO)匹配。最终的队列包括630例患者(126例CRVO病例和504例对照)和813例患者(271例BRVO病例和542例对照)。预测因子包括临床病史和实验室指标。多变量回归确定了独立的危险因素,并使用受试者工作特征曲线下面积(AUC)、校准图和决策曲线分析(DCA)来评估模型的性能。结果CRVO-nom和BRVO-nom突出了显著的预测因子,包括中性粒细胞与淋巴细胞比率(NLR)。CRVO的其他危险因素包括高密度脂蛋白胆固醇(HDL-C)、血小板分布宽度(PDW)、糖尿病史、脑梗死和冠状动脉疾病(CAD)。对于BRVO,重要的预测因素包括高血压史、年龄和体重指数(BMI)。CRVO-nom在训练集中的AUC为0.80 (95% CI: 0.73-0.87),在验证集中的AUC为0.77 (95% CI: 0.65-0.86),而BRVO-nom在训练集中的AUC为0.95 (95% CI: 0.91-0.97),在验证集中的AUC为0.95 (95% CI: 0.89-0.98)。结论scvo和BRVO具有明显的风险特征。开发的标准图- crvo -nom和brvo -nom -提供了具有强大区分和临床适用性的亚型特异性风险分层。在线Shiny计算器有助于实时风险评估,使高风险人群能够有针对性地预防。
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引用次数: 0
The impact of intraocular pressure fluctuations on the progression of glaucoma and associated factors 眼压波动对青光眼进展的影响及相关因素
Pub Date : 2025-03-12 DOI: 10.1016/j.aopr.2025.03.002
Tong Liu , YiLu Cai , MengYuan Hu , Zongrong Wang , Xin Liu , Min Chen , Kaijun Wang

Background

In recent years, remarkable advancements in the comprehension of glaucoma pathophysiology have highlighted the necessity of looking beyond the conventional focus on mean intraocular pressure (IOP) levels. IOP fluctuations have been identified as a potential factor that could exert a substantial impact on the progression of glaucoma.

Main text

IOP exhibits dynamic variations throughout a 24-h cycle. Glaucoma patients exhibit substantially more pronounced IOP fluctuations compared to healthy individuals, even when the mean IOP remains within the normal range. This implies that IOP fluctuations may play a role in glaucoma progression through mechanisms independent of elevated mean IOP. In this review, an exhaustive examination of studies spanning the past decade was conducted to analyze the relationship between IOP fluctuations and disease progression in primary open-angle glaucoma (POAG), ocular hypertension (OHT), normal tension glaucoma (NTG), and primary angle-closure glaucoma (PACG). While a few studies present conflicting results, the majority of research supports the notion that elevated IOP fluctuations significantly contribute to disease progression in POAG patients. This association has also been confirmed in PACG patients. However, in NTG or OHT patients, other risk factors may outweigh IOP fluctuations in disease progression or glaucoma conversion. Additionally, we summarized common factors affecting IOP fluctuations to provide a basis for the identification of patients prone to significant daily IOP variations. Finally, the efficacy of various IOP-lowering interventions in modulating IOP fluctuations is concisely summarized, offering insights for the formulation of comprehensive treatment strategies that incorporate IOP fluctuation management.

Conclusions

IOP fluctuations play a significant role in disease progression in POAG and PACG. Individuals with certain systemic or ocular characteristics are more predisposed to pronounced and recurrent IOP fluctuations. Consequently, a comprehensive assessment of IOP fluctuation that transcends mean IOP values, as well as the integration of IOP fluctuations management into glaucoma treatment strategies are of paramount importance.
近年来,对青光眼病理生理的理解取得了显著进展,这突出了超越传统的平均眼压(IOP)水平的必要性。眼压波动已被确定为可能对青光眼的进展产生重大影响的潜在因素。主文本op在24小时周期内呈现动态变化。青光眼患者的IOP波动比健康人明显得多,即使平均IOP仍在正常范围内。这意味着IOP波动可能通过独立于平均IOP升高的机制在青光眼的进展中发挥作用。在这篇综述中,对过去十年的研究进行了详尽的检查,以分析原发性开角型青光眼(POAG)、高眼压(OHT)、正常张力型青光眼(NTG)和原发性闭角型青光眼(PACG)的IOP波动与疾病进展之间的关系。虽然少数研究提出了相互矛盾的结果,但大多数研究支持这样一种观点,即IOP波动升高显著促进了POAG患者的疾病进展。这种关联在PACG患者中也得到证实。然而,在NTG或OHT患者中,其他危险因素可能超过疾病进展或青光眼转化的IOP波动。此外,我们总结了影响IOP波动的常见因素,为识别易发生显著IOP日变化的患者提供依据。最后,简要总结了各种降低眼压的干预措施在调节眼压波动方面的功效,为制定包括眼压波动管理在内的综合治疗策略提供了见解。结论siop波动在POAG和PACG的疾病进展中起重要作用。具有某些系统或眼部特征的个体更容易出现明显和反复的IOP波动。因此,对IOP波动的综合评估,超越平均IOP值,以及将IOP波动管理纳入青光眼治疗策略是至关重要的。
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引用次数: 0
The effect of a specific vitamin supplement containing L-methylfolate (Ocufolin forte) in patients with neovascular age-related macular degeneration 含有l -甲基叶酸(Ocufolin forte)的特定维生素补充剂对新生血管性年龄相关性黄斑变性患者的影响
Pub Date : 2025-03-04 DOI: 10.1016/j.aopr.2025.03.001
Tatjana Josifova , Katarzyna Konieczka , Andreas Schötzau , Josef Flammer

Background

Patients with nAMD often have pathologically elevated homocysteine (Hcy) and increased retinal venous pressure (RVP). We tested whether the administration of a specific vitamin preparation containing L-methylfolate (Ocufolin forte) as an addition to anti-VEGF therapy reduces these two risk factors and favorably influences the disease course.

Methods

A total of 27 eyes/27 patients with intra- and subretinal fluid, Hcy above 12 ​μmol/L, RVP of at least 8 ​mm above the IOP, and an IOP between 10 and 20 ​mmHg were included in this study. All eyes received three injections of 0.05 ​ml aflibercept at one-month intervals as clinically indicated. Fifteen patients additionally received one capsule of Ocufolin forte per day (Ocufolin group, OG), and the other twelve patients served as a control group (control group, CG). The following factors were measured before therapy and four months later: blood Hcy, best-corrected visual acuity (BCVA), intra-ocular pressure (IOP), RVP, optical coherence tomography (OCT), and optical coherence tomography - angiography (OCTA).

Results

Hcy decreased on average by 5.58 ​μmol/L in the OG and by 0.57 ​μmol/L in the CG. The RVP decreased on average by 4.60 ​mmHg in the OG and by 0.75 ​mmHg in the CG. The difference between the two groups was significant for both parameters (P ​<0.001); 66% of the OG and 41% of the CG had no retinal fluid at the end of the study. After the completion of the study, the injection intervals could be extended more often in the OG patients than in the CG patients.

Conclusions

When Ocufolin forte was added to the standard therapy, RVP and Hcy were reduced to a significantly greater extent than without Ocufolin forte. In addition, Ocufolin had a positive influence on morphology and future treatment intervals with anti-VEGF therapy.
nAMD患者通常有病理性高同型半胱氨酸(Hcy)和视网膜静脉压(RVP)升高。我们测试了一种含有l -甲基叶酸(Ocufolin forte)的特定维生素制剂作为抗vegf治疗的补充是否能降低这两个危险因素并对病程产生有利影响。方法选取视网膜内、下积液、Hcy大于12 μmol/L、RVP大于IOP 8 mm、IOP在10 ~ 20 mmHg的患者27只眼/27例。根据临床指示,每隔1个月给3只眼注射0.05 ml阿布西普。15例患者在对照组的基础上,每天给予1粒强化Ocufolin (Ocufolin组,OG),其余12例患者作为对照组(control group, CG)。治疗前和4个月后分别测量以下因素:血Hcy、最佳矫正视力(BCVA)、眼内压(IOP)、RVP、光学相干断层扫描(OCT)、光学相干断层扫描-血管造影(OCTA)。结果OG组shcy平均下降5.58 μmol/L, CG组平均下降0.57 μmol/L。OG组RVP平均下降4.60 mmHg, CG组平均下降0.75 mmHg。两组之间的差异在两个参数上都是显著的(P <0.001);66%的OG组和41%的CG组在研究结束时没有视网膜积液。研究结束后,OG组患者比CG组患者更容易延长注射间隔。结论在标准治疗中加入强化Ocufolin后,RVP和Hcy的降低幅度明显大于不加强化Ocufolin时。此外,Ocufolin对抗vegf治疗的形态学和未来治疗间隔有积极影响。
{"title":"The effect of a specific vitamin supplement containing L-methylfolate (Ocufolin forte) in patients with neovascular age-related macular degeneration","authors":"Tatjana Josifova ,&nbsp;Katarzyna Konieczka ,&nbsp;Andreas Schötzau ,&nbsp;Josef Flammer","doi":"10.1016/j.aopr.2025.03.001","DOIUrl":"10.1016/j.aopr.2025.03.001","url":null,"abstract":"<div><h3>Background</h3><div>Patients with nAMD often have pathologically elevated homocysteine (Hcy) and increased retinal venous pressure (RVP). We tested whether the administration of a specific vitamin preparation containing L-methylfolate (Ocufolin forte) as an addition to anti-VEGF therapy reduces these two risk factors and favorably influences the disease course.</div></div><div><h3>Methods</h3><div>A total of 27 eyes/27 patients with intra- and subretinal fluid, Hcy above 12 ​μmol/L, RVP of at least 8 ​mm above the IOP, and an IOP between 10 and 20 ​mmHg were included in this study. All eyes received three injections of 0.05 ​ml aflibercept at one-month intervals as clinically indicated. Fifteen patients additionally received one capsule of Ocufolin forte per day (Ocufolin group, OG), and the other twelve patients served as a control group (control group, CG). The following factors were measured before therapy and four months later: blood Hcy, best-corrected visual acuity (BCVA), intra-ocular pressure (IOP), RVP, optical coherence tomography (OCT), and optical coherence tomography - angiography (OCTA).</div></div><div><h3>Results</h3><div>Hcy decreased on average by 5.58 ​μmol/L in the OG and by 0.57 ​μmol/L in the CG. The RVP decreased on average by 4.60 ​mmHg in the OG and by 0.75 ​mmHg in the CG. The difference between the two groups was significant for both parameters (<em>P</em> ​&lt;0.001); 66% of the OG and 41% of the CG had no retinal fluid at the end of the study. After the completion of the study, the injection intervals could be extended more often in the OG patients than in the CG patients.</div></div><div><h3>Conclusions</h3><div>When Ocufolin forte was added to the standard therapy, RVP and Hcy were reduced to a significantly greater extent than without Ocufolin forte. In addition, Ocufolin had a positive influence on morphology and future treatment intervals with anti-VEGF therapy.</div></div>","PeriodicalId":72103,"journal":{"name":"Advances in ophthalmology practice and research","volume":"5 2","pages":"Pages 135-141"},"PeriodicalIF":0.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of mild posterior capsule opacification on visual outcomes in trifocal diffractive pseudophakic eyes: A multicenter prospective study 轻度后囊膜混浊对三焦衍射性假性眼视力的影响:一项多中心前瞻性研究
Pub Date : 2025-02-14 DOI: 10.1016/j.aopr.2025.02.002
Limei Zhang , Runhan Shi , Xuanzhu Chen , Xuefen Gu , Jiying Shen , Aijun Wang , Shuang Ni , Lei Cai , Haike Guo , Jin Yang

Purpose

To elucidate the impact of mild PCO on the visual outcomes in patients with hydrophilic trifocal IOLs, and to identify objective indicators that can assist in determining the need for Nd:YAG laser capsulotomy.

Methods

This is a prospective observational study. 189 patients implanted trifocal IOL who underwent Nd:YAG laser posterior capsulotomy were recruited. Patients were classified into four grades according to PCO morphology. The distance, intermediate, and near visual acuity (VA), dysfunction lens index (DLI), contrast sensitivity (CS) and visual function (VF-14) scores were measured before and 1 month after Nd:YAG laser capsulotomy.

Results

Before Nd:YAG laser capsulotomy, a significant correlation was observed between PCO grading and uncorrected distance (UDVA), intermediate (UIVA), near (UNVA) visual acuity, corrected distance VA (CDVA), DLI, and VF-14 scores (All P ​< ​0.001). However, in patients with PCO grade 1 (mild), post-capsulotomy UNVA, DLI, medium and high spatial frequency CS under photopic condition and VF-14 scores were significantly improved compared with pre-capsulotomy values (all P ​< ​0.05). The area under the receiver operating characteristic curve for DLI was 0.830 (P ​< ​0.001), with a corresponding cut-off value of 7.225, indicating its usefulness in assessing the need for Nd:YAG laser capsulotomy in cases of mild PCO.

Conclusions

Mild PCO initially impairs near visual acuity in patients with trifocal IOLs and concurrently diminishes both subjective and objective of visual quality. The DLI can serve as an auxiliary diagnostic indicator to assess whether patients with mild PCO may benefit from Nd:YAG laser capsulotomy.
目的探讨轻度PCO对亲水三焦iol患者视力结果的影响,并确定是否需要Nd:YAG激光囊切开术的客观指标。方法前瞻性观察性研究。本研究招募了189例经Nd:YAG激光后囊膜切开术的三焦人工晶状体植入术患者。根据PCO形态将患者分为4个级别。分别在Nd:YAG激光囊膜切开术前和术后1个月测定患者的远、中、近视力(VA)、功能障碍晶状体指数(DLI)、对比敏感度(CS)和视力(VF-14)评分。结果Nd:YAG激光囊膜切开术前,PCO分级与未矫正距离(UDVA)、中间(UIVA)、近距离(UNVA)、矫正距离VA (CDVA)、DLI、VF-14评分有显著相关性(均P <;0.001)。然而,在1级(轻度)PCO患者中,与开膜前相比,开膜后UNVA、DLI、光下中、高空间频率CS和VF-14评分显著提高(P <;0.05)。受试者工作特征曲线下面积为0.830 (P <;0.001),相应的临界值为7.225,表明其在评估轻度PCO患者是否需要Nd:YAG激光囊切开术方面的有效性。结论三焦人工晶状体白内障患者的近视力在初始阶段受损,主客观视觉质量均下降。DLI可作为评估轻度PCO患者是否受益于Nd:YAG激光囊膜切开术的辅助诊断指标。
{"title":"Effect of mild posterior capsule opacification on visual outcomes in trifocal diffractive pseudophakic eyes: A multicenter prospective study","authors":"Limei Zhang ,&nbsp;Runhan Shi ,&nbsp;Xuanzhu Chen ,&nbsp;Xuefen Gu ,&nbsp;Jiying Shen ,&nbsp;Aijun Wang ,&nbsp;Shuang Ni ,&nbsp;Lei Cai ,&nbsp;Haike Guo ,&nbsp;Jin Yang","doi":"10.1016/j.aopr.2025.02.002","DOIUrl":"10.1016/j.aopr.2025.02.002","url":null,"abstract":"<div><h3>Purpose</h3><div>To elucidate the impact of mild PCO on the visual outcomes in patients with hydrophilic trifocal IOLs, and to identify objective indicators that can assist in determining the need for Nd:YAG laser capsulotomy.</div></div><div><h3>Methods</h3><div>This is a prospective observational study. 189 patients implanted trifocal IOL who underwent Nd:YAG laser posterior capsulotomy were recruited. Patients were classified into four grades according to PCO morphology. The distance, intermediate, and near visual acuity (VA), dysfunction lens index (DLI), contrast sensitivity (CS) and visual function (VF-14) scores were measured before and 1 month after Nd:YAG laser capsulotomy.</div></div><div><h3>Results</h3><div>Before Nd:YAG laser capsulotomy, a significant correlation was observed between PCO grading and uncorrected distance (UDVA), intermediate (UIVA), near (UNVA) visual acuity, corrected distance VA (CDVA), DLI, and VF-14 scores (All <em>P</em> ​&lt; ​0.001). However, in patients with PCO grade 1 (mild), post-capsulotomy UNVA, DLI, medium and high spatial frequency CS under photopic condition and VF-14 scores were significantly improved compared with pre-capsulotomy values (all <em>P</em> ​&lt; ​0.05). The area under the receiver operating characteristic curve for DLI was 0.830 (<em>P</em> ​&lt; ​0.001), with a corresponding cut-off value of 7.225, indicating its usefulness in assessing the need for Nd:YAG laser capsulotomy in cases of mild PCO.</div></div><div><h3>Conclusions</h3><div>Mild PCO initially impairs near visual acuity in patients with trifocal IOLs and concurrently diminishes both subjective and objective of visual quality. The DLI can serve as an auxiliary diagnostic indicator to assess whether patients with mild PCO may benefit from Nd:YAG laser capsulotomy.</div></div>","PeriodicalId":72103,"journal":{"name":"Advances in ophthalmology practice and research","volume":"5 2","pages":"Pages 117-123"},"PeriodicalIF":0.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract 泪膜稳定性对角膜屈光度测量及白内障手术计划的影响
Pub Date : 2025-02-03 DOI: 10.1016/j.aopr.2025.02.001
Yuanfeng Jiang , Xiteng Chen , Yichen Gao, Nan Gao, Huiyu Wang, Yanwen Feng, Meisa Li, Luning Qin, Fei Li, Shaozhen Zhao, Shaochong Bu, Fang Tian

Purpose

This prospective cohort study aimed to assess the influence of tear film stability on corneal refractive power measurement and surgical planning in cataract patients.

Methods

Participants were divided into tear film instability (tear film stability level 2) and control (level 0–1) groups based on Keratograph 5M results. Using IOL Master 700, two consecutive measurements were obtained with a 10-min interval. Parameters including standard keratometry (Kf, Ks and K), keratometric corneal astigmatism (KCA), total keratometry (TKf, TKs and TK) and total corneal astigmatism (TCA) were recorded. IOL power was calculated using SRK-T, SRK-T TK, Haigis, Haigis TK, Barrett Universal II, and Barrett Universal II TK formulas.

Results

The results showed significantly higher differences between two measurements in Kf, K, KCA, TKf, TK, and TCA, as well as the vector variability of corneal astigmatism in the tear film instability group (all P ​< ​0.05). Of all formulas, only the SRK-T formula displayed significantly higher variability in IOL power calculations in the tear film instability group compared to the control group (P ​< ​0.05).

Conclusions

This study highlights that tear film instability can lead to deviations in corneal refractive power and astigmatism measurements, contributing to increased prediction errors in IOL power calculation, particularly with the SRK-T formula.
目的本前瞻性队列研究旨在评估泪膜稳定性对白内障患者角膜屈光度测量和手术计划的影响。方法根据角膜镜5M结果将患者分为泪膜不稳定(泪膜稳定性2级)组和对照组(0-1级)。使用IOL Master 700,连续两次测量,间隔10分钟。记录标准角膜屈光度(Kf、Ks和K)、角膜屈光度(KCA)、总角膜屈光度(TKf、TKs和TK)和角膜总散光(TCA)等参数。采用SRK-T、SRK-T TK、Haigis、Haigis TK、Barrett Universal II和Barrett Universal II TK公式计算人工晶状体度数。结果泪膜不稳定组的Kf、K、KCA、TKf、TK、TCA以及角膜散光的矢量变异性在两次测量中差异有显著性意义(P <;0.05)。在所有公式中,只有SRK-T公式在泪膜不稳定组的人工晶状体度数计算中显示出明显高于对照组的变异性(P <;0.05)。本研究强调泪膜不稳定会导致角膜屈光度数和散光测量的偏差,导致人工晶状体度数计算的预测误差增加,尤其是SRK-T公式。
{"title":"Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract","authors":"Yuanfeng Jiang ,&nbsp;Xiteng Chen ,&nbsp;Yichen Gao,&nbsp;Nan Gao,&nbsp;Huiyu Wang,&nbsp;Yanwen Feng,&nbsp;Meisa Li,&nbsp;Luning Qin,&nbsp;Fei Li,&nbsp;Shaozhen Zhao,&nbsp;Shaochong Bu,&nbsp;Fang Tian","doi":"10.1016/j.aopr.2025.02.001","DOIUrl":"10.1016/j.aopr.2025.02.001","url":null,"abstract":"<div><h3>Purpose</h3><div>This prospective cohort study aimed to assess the influence of tear film stability on corneal refractive power measurement and surgical planning in cataract patients.</div></div><div><h3>Methods</h3><div>Participants were divided into tear film instability (tear film stability level 2) and control (level 0–1) groups based on Keratograph 5M results. Using IOL Master 700, two consecutive measurements were obtained with a 10-min interval. Parameters including standard keratometry (Kf, Ks and K), keratometric corneal astigmatism (KCA), total keratometry (TKf, TKs and TK) and total corneal astigmatism (TCA) were recorded. IOL power was calculated using SRK-T, SRK-T TK, Haigis, Haigis TK, Barrett Universal II, and Barrett Universal II TK formulas.</div></div><div><h3>Results</h3><div>The results showed significantly higher differences between two measurements in Kf, K, KCA, TKf, TK, and TCA, as well as the vector variability of corneal astigmatism in the tear film instability group (all <em>P</em> ​&lt; ​0.05). Of all formulas, only the SRK-T formula displayed significantly higher variability in IOL power calculations in the tear film instability group compared to the control group (<em>P</em> ​&lt; ​0.05).</div></div><div><h3>Conclusions</h3><div>This study highlights that tear film instability can lead to deviations in corneal refractive power and astigmatism measurements, contributing to increased prediction errors in IOL power calculation, particularly with the SRK-T formula.</div></div>","PeriodicalId":72103,"journal":{"name":"Advances in ophthalmology practice and research","volume":"5 2","pages":"Pages 100-106"},"PeriodicalIF":0.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The alterations of ocular surface metabolism and the related immunity inflammation in dry eye 干眼症眼表代谢改变及相关免疫炎症。
Pub Date : 2025-02-01 DOI: 10.1016/j.aopr.2024.08.003
Xiaojie Wan , Yu Zhang , Kaiye Zhang , Yujie Mou , Xiuming Jin , Xiaodan Huang

Background

Dry eye disease (DED) stands as a prominent ocular condition of global prevalence, emerging as a growing concern within public health. However, the underlying mechanisms involved in its pathogenesis remain largely unknown. In recent years, with the development of metabolomics, numerous studies have reported alterations in ocular surface metabolism in DED and offered fresh perspectives on the development of DED.

Main text

The metabolic changes of the ocular surface of DED patients are closely intertwined with the cellular metabolism process and immune inflammation changes. This article expounds upon the correlation between ocular surface metabolism and immune inflammation alterations in DED in terms of glycolysis, lipid metabolism, amino acid metabolism, cellular signaling pathways, and immune inflammation regulation.

Conclusions

The alterations in ocular surface metabolism of patients with dry eye are closely associated with their inflammatory status. Our work contributes novel insights into the pathogenesis of dry eye diseases and offers innovative molecular targets for diagnosing, detecting, and managing DED patients.
背景:干眼病(DED)是全球流行的一种突出的眼部疾病,在公共卫生领域日益受到关注。然而,其发病机制在很大程度上仍然未知。近年来,随着代谢组学的发展,大量研究报道了DED中眼表代谢的改变,为DED的发展提供了新的视角。摘要:DED患者眼表代谢变化与细胞代谢过程和免疫炎症变化密切相关。本文从糖酵解、脂质代谢、氨基酸代谢、细胞信号通路、免疫炎症调节等方面阐述了DED眼表代谢与免疫炎症改变的相关性。结论:干眼症患者眼表代谢的改变与其炎症状态密切相关。我们的工作为干眼病的发病机制提供了新的见解,并为诊断、检测和治疗DED患者提供了创新的分子靶点。
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引用次数: 0
TOC TOC
Pub Date : 2025-02-01 DOI: 10.1016/S2667-3762(25)00008-3
{"title":"TOC","authors":"","doi":"10.1016/S2667-3762(25)00008-3","DOIUrl":"10.1016/S2667-3762(25)00008-3","url":null,"abstract":"","PeriodicalId":72103,"journal":{"name":"Advances in ophthalmology practice and research","volume":"5 1","pages":"Pages iii-iv"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Association between myopia and diabetic retinopathy: A two-sample mendelian randomization study 近视与糖尿病视网膜病变之间的关系:一项双样本孟德尔随机研究。
Pub Date : 2025-02-01 DOI: 10.1016/j.aopr.2024.10.003
Jinyi Xu , Shengsong Xu , Xiao Wang , Chuqi Xiang, Zhenbang Ruan, Mingxin Lu, Liying He, Yin Hu, Xiao Yang

Objective

The association between myopia and diabetic retinopathy (DR) is unclear, with inconsistent results reported, and whether the association represents causality remains unknown. This study aimed to investigate the causal associations of genetically determined myopia with DR, and further explore specific mechanisms.

Methods

We conducted two-sample mendelian randomization (MR) analyses of any myopia and high myopia on six DR phenotypes, including any DR, background DR, severe background DR, proliferative DR (PDR), diabetic maculopathy and unspecific DR in the primary study. Mechanism exploration of spherical equivalent refraction (SER), corneal curvature (CC) and axial length (AL) on any DR was carried out subsequently. Single-nucleotide polymorphisms (SNPs), used as genetic instruments, were derived from UK Biobank, Genetic Epidemiology Research on Adult Health and Aging cohort (GERA) and FinnGen. The inverse variance weighted (IVW) method was mainly used to assess the causality, and was complemented with sensitivity analyses and causality direction analyses.

Results

Using SNPs that have excluded possible confounders, we discovered suggestive and positive causal associations of any myopia with any DR (IVW: odds ratio [OR] ​= ​1.133, 95% confidence interval [95%CI]: 1.070–1.201, P ​= ​1.91×10−5) and PDR (IVW: OR ​= ​1.182, 95% CI: 1.088–1.285, P ​= ​8.31×10−5). Similar but more significant associations were found of high myopia with any DR and PDR (IVW: OR ​= ​1.107, 95%CI: 1.051–1.166, P ​= ​1.39×10−4; OR ​= ​1.163, 95%CI: 1.088–1.244, P ​= ​8.76×10−6, respectively). Further mechanism analyses found only AL, rather than SER or CC, was strongly and significantly associated with any DR. These associations were robust in sensitivity analyses and causality direction analyses.

Conclusions

We found significant and positive causal associations of any myopia and high myopia with the risk of DR and PDR, which might be related with AL, indicating the significance of myopia control for preventing DR development and progression.
目的:近视与糖尿病视网膜病变(DR)之间的关系尚不清楚,报道的结果不一致,这种关系是否代表因果关系尚不清楚。本研究旨在探讨遗传性近视与DR的因果关系,并进一步探讨其具体机制。方法:本研究采用双样本孟德尔随机化(MR)方法对任意近视和高度近视6种DR表型进行分析,包括任意DR、背景DR、重度背景DR、增殖性DR、糖尿病黄斑病变和非特异性DR。随后对任意DR的球面等效折射(SER)、角膜曲率(CC)和轴向长度(AL)进行了机理探索。单核苷酸多态性(snp)作为遗传工具,来源于UK Biobank、英国成人健康与衰老队列遗传流行病学研究(GERA)和FinnGen。因果关系评价主要采用反方差加权法(IVW),并辅以敏感性分析和因果关系方向分析。结果:使用排除了可能混杂因素的snp,我们发现任何近视与任何DR (IVW:比值比[OR] = 1.133, 95%可信区间[95%CI]: 1.070-1.201, P = 1.91×10-5)和PDR (IVW: OR = 1.182, 95%CI: 1.088-1.285, P = 8.31×10-5)之间存在暗示和正相关的因果关系。高度近视与任何DR和PDR均有相似但更显著的相关性(IVW: OR = 1.107, 95%CI: 1.051 ~ 1.166, P = 1.39×10-4;或= 1.163,95%置信区间ci: 1.088 - -1.244, P = 8.76×10 - 6,分别)。进一步的机制分析发现,只有AL,而不是SER或CC,与任何dr都有强烈而显著的相关性。这些相关性在敏感性分析和因果关系方向分析中都是稳健的。结论:我们发现任何近视和高度近视与DR和PDR的风险均存在显著正相关的因果关系,这可能与AL有关,说明控制近视对预防DR的发生和发展具有重要意义。
{"title":"Association between myopia and diabetic retinopathy: A two-sample mendelian randomization study","authors":"Jinyi Xu ,&nbsp;Shengsong Xu ,&nbsp;Xiao Wang ,&nbsp;Chuqi Xiang,&nbsp;Zhenbang Ruan,&nbsp;Mingxin Lu,&nbsp;Liying He,&nbsp;Yin Hu,&nbsp;Xiao Yang","doi":"10.1016/j.aopr.2024.10.003","DOIUrl":"10.1016/j.aopr.2024.10.003","url":null,"abstract":"<div><h3>Objective</h3><div>The association between myopia and diabetic retinopathy (DR) is unclear, with inconsistent results reported, and whether the association represents causality remains unknown. This study aimed to investigate the causal associations of genetically determined myopia with DR, and further explore specific mechanisms.</div></div><div><h3>Methods</h3><div>We conducted two-sample mendelian randomization (MR) analyses of any myopia and high myopia on six DR phenotypes, including any DR, background DR, severe background DR, proliferative DR (PDR), diabetic maculopathy and unspecific DR in the primary study. Mechanism exploration of spherical equivalent refraction (SER), corneal curvature (CC) and axial length (AL) on any DR was carried out subsequently. Single-nucleotide polymorphisms (SNPs), used as genetic instruments, were derived from UK Biobank, Genetic Epidemiology Research on Adult Health and Aging cohort (GERA) and FinnGen. The inverse variance weighted (IVW) method was mainly used to assess the causality, and was complemented with sensitivity analyses and causality direction analyses.</div></div><div><h3>Results</h3><div>Using SNPs that have excluded possible confounders, we discovered suggestive and positive causal associations of any myopia with any DR (IVW: odds ratio [OR] ​= ​1.133, 95% confidence interval [95%CI]: 1.070–1.201, <em>P</em> ​= ​1.91×10<sup>−5</sup>) and PDR (IVW: OR ​= ​1.182, 95% CI: 1.088–1.285, <em>P</em> ​= ​8.31×10<sup>−5</sup>). Similar but more significant associations were found of high myopia with any DR and PDR (IVW: OR ​= ​1.107, 95%CI: 1.051–1.166, <em>P</em> ​= ​1.39×10<sup>−4</sup>; OR ​= ​1.163, 95%CI: 1.088–1.244, <em>P</em> ​= ​8.76×10<sup>−6</sup>, respectively). Further mechanism analyses found only AL, rather than SER or CC, was strongly and significantly associated with any DR. These associations were robust in sensitivity analyses and causality direction analyses.</div></div><div><h3>Conclusions</h3><div>We found significant and positive causal associations of any myopia and high myopia with the risk of DR and PDR, which might be related with AL, indicating the significance of myopia control for preventing DR development and progression.</div></div>","PeriodicalId":72103,"journal":{"name":"Advances in ophthalmology practice and research","volume":"5 1","pages":"Pages 32-40"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11787657/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Global incidence and trends of ocular cancer: A bibliometric analysis 眼癌的全球发病率和趋势:文献计量学分析。
Pub Date : 2025-02-01 DOI: 10.1016/j.aopr.2024.10.004
Hang Xu , Alexander C. Rokohl , Xiaojun Ju , Yongwei Guo , Xincen Hou , Wanlin Fan , Ludwig M. Heindl

Background

Ocular cancer represents a significant threat to vision and life among various eye diseases. Conjunctival melanoma is regarded as one of the most feared and unpredictable ocular tumors. Considering the global differences in the occurrence of ocular melanoma across different races and regions, this study provides a thorough examination of the current state of research pertaining to the epidemiology of ocular and conjunctival cancers.

Methods

This bibliometrics analysis used the Web of Science Core Collection (WoSCC) to collect data from publications on the epidemiology of ocular cancer, including relevant literature from 1951 to 2024. We examined indicators including t publication counts, citation rates, and data on contributing countries, institutions, and journals. Use VOSviewer and CiteSpace for network visualization and Microsoft Excel for data management. Our analysis reveals key trends in the epidemiology of ocular cancer across countries and identifies prominent keywords.

Results

A total of 406 articles on ocular cancer were identified, with significant contributions from the United States, the United Kingdom, and Germany. Denmark also plays a crucial role, particularly in conjunctival cancer research. Carol L. Shields is a leading figure widely recognized for her influential citations in ocular cancer epidemiology. The top publication platforms include the British Journal of Ophthalmology, Ophthalmic Epidemiology, and Ophthalmology. Key terms in ocular cancer research focus on prevalence, survival, and epidemiology, while conjunctival cancer studies emphasize malignant melanoma, conjunctiva, and epidemiology. Through keyword co-occurrence and burst analysis, trending topics include prevalence, risk factors, uveal melanoma, choroidal melanoma, malignant melanoma, squamous cell carcinoma, and conjunctiva. For conjunctival cancer, key research areas expected to remain prominent are cell carcinoma, management, recurrence, ocular surface squamous neoplasia, and pathology.

Conclusions

This analysis represents the first comprehensive bibliometric review mapping the trends and the knowledge structure in ocular cancer research, specifically from an epidemiological viewpoint. The results meticulously explore and encapsulate the research frontiers for scholars dedicated to the epidemiology of conjunctival cancer.
背景:眼癌是各种眼病中对视力和生命构成重大威胁的疾病。结膜黑色素瘤被认为是最令人恐惧和难以预测的眼部肿瘤之一。考虑到全球不同种族和地区眼部黑色素瘤发生的差异,本研究提供了有关眼部和结膜癌流行病学研究现状的全面检查。方法:文献计量学分析采用Web of Science Core Collection (WoSCC)数据库,收集1951 - 2024年眼部肿瘤流行病学相关文献资料。我们检查的指标包括出版物数量、引用率以及贡献国家、机构和期刊的数据。使用VOSviewer和CiteSpace进行网络可视化,使用Microsoft Excel进行数据管理。我们的分析揭示了各国眼癌流行病学的主要趋势,并确定了突出的关键词。结果:共确定了406篇关于眼癌的文章,其中来自美国、英国和德国的贡献很大。丹麦也发挥着至关重要的作用,特别是在结膜癌研究方面。卡罗尔·l·希尔兹是一位领军人物,因其在眼癌流行病学方面的有影响力的引用而得到广泛认可。顶级出版平台包括《英国眼科杂志》、《眼科流行病学》和《眼科学》。眼癌研究的关键术语集中于患病率、生存率和流行病学,而结膜癌研究强调恶性黑色素瘤、结膜和流行病学。通过关键词共现和突发分析,趋势话题包括患病率、危险因素、葡萄膜黑色素瘤、脉络膜黑色素瘤、恶性黑色素瘤、鳞状细胞癌、结膜。结膜癌的重点研究领域是细胞癌、治疗、复发、眼表鳞状瘤变和病理学。结论:这一分析是第一次全面的文献计量学综述,从流行病学的角度,绘制了眼癌研究的趋势和知识结构。研究结果为致力于结膜癌流行病学的学者精心探索和概括了研究前沿。
{"title":"Global incidence and trends of ocular cancer: A bibliometric analysis","authors":"Hang Xu ,&nbsp;Alexander C. Rokohl ,&nbsp;Xiaojun Ju ,&nbsp;Yongwei Guo ,&nbsp;Xincen Hou ,&nbsp;Wanlin Fan ,&nbsp;Ludwig M. Heindl","doi":"10.1016/j.aopr.2024.10.004","DOIUrl":"10.1016/j.aopr.2024.10.004","url":null,"abstract":"<div><h3>Background</h3><div>Ocular cancer represents a significant threat to vision and life among various eye diseases. Conjunctival melanoma is regarded as one of the most feared and unpredictable ocular tumors. Considering the global differences in the occurrence of ocular melanoma across different races and regions, this study provides a thorough examination of the current state of research pertaining to the epidemiology of ocular and conjunctival cancers.</div></div><div><h3>Methods</h3><div>This bibliometrics analysis used the Web of Science Core Collection (WoSCC) to collect data from publications on the epidemiology of ocular cancer, including relevant literature from 1951 to 2024. We examined indicators including t publication counts, citation rates, and data on contributing countries, institutions, and journals. Use VOSviewer and CiteSpace for network visualization and Microsoft Excel for data management. Our analysis reveals key trends in the epidemiology of ocular cancer across countries and identifies prominent keywords.</div></div><div><h3>Results</h3><div>A total of 406 articles on ocular cancer were identified, with significant contributions from the United States, the United Kingdom, and Germany. Denmark also plays a crucial role, particularly in conjunctival cancer research. Carol L. Shields is a leading figure widely recognized for her influential citations in ocular cancer epidemiology. The top publication platforms include the <em>British Journal of Ophthalmology</em>, <em>Ophthalmic Epidemiology</em>, and <em>Ophthalmology</em>. Key terms in ocular cancer research focus on prevalence, survival, and epidemiology, while conjunctival cancer studies emphasize malignant melanoma, conjunctiva, and epidemiology. Through keyword co-occurrence and burst analysis, trending topics include prevalence, risk factors, uveal melanoma, choroidal melanoma, malignant melanoma, squamous cell carcinoma, and conjunctiva. For conjunctival cancer, key research areas expected to remain prominent are cell carcinoma, management, recurrence, ocular surface squamous neoplasia, and pathology.</div></div><div><h3>Conclusions</h3><div>This analysis represents the first comprehensive bibliometric review mapping the trends and the knowledge structure in ocular cancer research, specifically from an epidemiological viewpoint. The results meticulously explore and encapsulate the research frontiers for scholars dedicated to the epidemiology of conjunctival cancer.</div></div>","PeriodicalId":72103,"journal":{"name":"Advances in ophthalmology practice and research","volume":"5 1","pages":"Pages 22-31"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11787427/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Advances in ophthalmology practice and research
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