先天性白内障是严重影响婴幼儿视功能的疾病。随着白内障手术和人工晶体植入手术技术的发展，先天性白内障患者术后多可获得高质量的视觉康复。然而，如何更好防治手术相关的不良事件和并发症、先天性白内障伴随的其他眼部发育不良疾病的治疗以及形觉剥夺性弱视的治疗，仍然是先天性白内障手术后需要重视的临床问题。文章对先天性白内障摘除及人工晶体植入术后高眼压和继发性青光眼的发生、相关危险因素、治疗和预防的手段进行总结，以期进一步提高对先天性白内障术后高眼压和青光眼防治的认识，减少术后并发症对视功能造成的进一步损害。

Congenital cataract is a significant condition that profoundly impacts the visual function of infants and young children. Advancements in cataract surgery and intraocular lens implantation have enabled the achievement of high-quality visual rehabilitation after congenital cataract surgery. Nevertheless, effective prevention and treatment of surgery-related adverse events and complications, as well as managing other ocular dysplasia and form deprivation amblyopia that may arise in conjunction with the surgery, continue to pose important clinical challenges following congenital cataract surgery. This article provides a comprehensive overview of the occurrence, risk factors, treatment and prevention of high intraocular pressure and secondary glaucoma after congenital cataract and intraocular lens implantation. Its aim is to enhance the comprehension of preventive and therapeutic measures for high intraocular pressure and glaucoma after congenital cataract surgery, thereby minimizing potential postoperative complications and preserving visual function.

目的：建立并评估儿童Ⅱ期人工晶状体(intraocular lens,IOL)植入术后青光眼相关不良事件(glaucoma-related adverse events,GRAEs)的预测模型。方法：选取于中山大学中山眼科中心行Ⅱ期IOL植入术的无晶状体眼患儿205例(356眼)，并在术后对其随访3年。采用Cox比例风险模型确定GRAEs的预测因子，并建立列线图预测模型。采用随时间变化的受试者工作特征(receiver operating characteristic,ROC)曲线、决策曲线分析、Kaplan-Meier曲线评估模型性能，并通过Bootstrapping的C指数和校准图进行内部验证。结果：行Ⅱ期IOL植入术时年龄较大(HR=1.50, 95% CI: 1.03 ~2.19)、术后一过性高眼压(HR=9.06, 95% CI: 2.97~27.67)和IOL睫状沟植入术(HR=14.55, 95% CI: 2.11~100.57)是GRAEs的危险因素(均P<0.05)，并据此建立了两个列线图预测模型。在术后1、2、3年，模型1的ROC曲线下面积(area under curve,AUC)分别为0.747(95% CI: 0.776 ~0.935)、0.765 (95% CI: 0.804 ~0.936)和0.748 (95% CI: 0.736~0.918)，模型2的AUC分别为0.881 (95% CI: 0.836 ~0.926)、0.895 (95% CI: 0.852 ~0.938)和0.848 (95% CI: 0.752~0.945)。在内部验证和评价中，两种模型均表现出良好的性能和临床净效益。Kaplan-Meier曲线显示两个不同的风险组在两个模型中都能被显著且稳健地区分。此外，本研究也构建了在线风险计算器。结论：两种列线图均能灵敏、准确地识别Ⅱ期IOL植入术后GRAEs的高危患儿，有助对其进行早期识别和及时干预。

Aims: To establish and evaluate predictive models for glaucoma-related adverse events (GRAEs) following secondary intraocular lens (IOL) implantation in paediatric eyes. Methods: 205 children (356 aphakic eyes) receiving secondary IOL implantation at Zhongshan Ophthalmic Center with a 3-year follow-up were enrolled. Cox proportional hazard model was used to identify predictors of GRAEs and developed nomograms. Model performance was evaluated with time-dependent receiver operating characteristic (ROC) curves, decision curve analysis, Kaplan-Meier curves and validated internally through C-statistics and calibration plot of the bootstrap samples. Results: Older age at secondary IOL implantation (HR=1.5, 95% CI: 1.03 to 2.19), transient intraocular hypertension (HR=9.06, 95% CI: 2.97 to  27.67) and ciliary sulcus implantation (HR=14.55, 95% CI: 2.11 to 100.57) were identified as risk factors for GRAEs (all p<0.05). Two nomograms were established. At postoperatively 1, 2 and 3 years, model 1 achieved area under the ROC curves (AUCs) of 0.747 (95% CI: 0.776 to 0.935), 0.765 (95% CI: 0.804 to 0.936) and 0.748 (95% CI: 0.736 to 0.918), and the AUCs of model 2 were 0.881 (95% CI: 0.836 to 0.926), 0.895 (95% CI: 0.852 to 0.938) and 0.848 (95% CI: 0.752 to 0.945). Both models demonstrated fine clinical net benefit and performance in the interval validation. The Kaplan-Meier curves showing two distinct risk groups were well discriminated and robust in both models. An online risk calculator was constructed. Conclusions: Two nomograms could sensitively and accurately identify children at high risk of GRAEs after secondary IOL implantation to help early identification and timely intervention.

目的：运用孟德尔随机化(Mendelian randomization,MR)方法，探索户外活动与近视之间的双向因果关系。方法：来自英国生物银行(UK Biobank)的大型队列研究数据，选择与欧洲血统人群中户外活动与近视相关的相互独立的遗传位点作为IV。户外活动的全基因组关联研究(genome-wide association study, GWAS)数据包含419 314名欧洲人群，而近视的GWAS数据则包含460 536名欧洲人群，其中37 362名近视者和423 174名对照者。通过运用逆方差加权法(inverse variance weighted,IVW)、加权中位数法(weighted median,WM)以及MR Egger法进行MR分析，将比值比作为效应度量指标，深入探讨两者间的双向因果联系。同时，通过MR多态性残差和异常值检测(MR PRESSO)方法剔除SNP异常值，利用MR Egger法以及IVW法的Cochran Q检验对各个单核苷酸多态性(SNP)之间的异质性进行了评估；并且使用MR Egger截距检验SNP的潜在多效性，通过“留一法”敏感性分析检验MR研究是否受单个SNP的影响。结果：IVW分析显示户外活动能显著降低近视的风险(OR = 0.934, 95% CI: 0.922～0.948, P < 0.01)。反向孟德尔随机化分析发现近视者参与户外活动的意愿较低(OR = 0.925, 95%CI: 0.777～1.103)但P = 0.39，未达到统计学意义。双向孟德尔随机化分析的Cochran Q检验、MR PRESSO检测以及MR Egger截距测试结果均显示所选IV间不存在显著异质性和水平多效性问题，而且，“留一法”敏感性分析证实，单个SNP对整体结果未见影响。结论：户外活动可能明显降低近视的风险。

Objective: To employ Mendelian randomization (MR) methods to explore bidirectional causal relationships between outdoor activities and myopia. Methods: Large-scale cohort study data from the UK Biobank were utilized, selecting independent genetic loci associated with outdoor activities and myopia within the European ancestry population as instrumental variables. The outdoor activities GWAS data included 419,314 individuals of European descent, while the myopia GWAS data comprised 460,536 individuals, including 37,362 myopia cases and 423,174 controls. MR analyses were conducted using inverse variance-weighted (IVW), weighted median, and MR Egger methods, employing the odds ratio as the effect measure to thoroughly investigate bidirectional causal connections. Mendelian randomization pleiotropy residual sum and outlier (MR PRESSO) detection method were employed to eliminate SNP outliers. Cochran's Q test, within MR Egger and IVW methods, was utilized to assess heterogeneity among individual single nucleotide polymorphisms (SNPs). MR Egger intercept testing assessed potential pleiotropy, and sensitivity analysis using the "leave-one-out" method examined the influence of individual SNPs on overall results. Results: IVW analysis demonstrated that outdoor activities significantly reduce the risk of myopia (OR = 0.934, 95% CI: 0.922~0.948, P < 0.01). Reverse Mendelian randomization analysis revealed a non-significant lower propensity for myopic individuals to engage in outdoor activities (OR = 0.925, 95% CI: 0.777~1.103, P = 0.39). Cochran's Q test, MR PRESSO, and MR Egger intercept tests in bidirectional Mendelian randomization analysis all indicated no significant heterogeneity or horizontal pleiotropy issues among the selected instrumental variables. Furthermore, sensitivity analysis using the "leave-one-out" method confirmed that individual SNPs did not significantly impact the overall results. Conclusion: Outdoor activities significantly reduce the risk of myopia.

目的：以提升进行住院医师规范化培训(住培)的眼科医生临床诊疗思维能力为导向，建立LRC渐进协作教学体系(LRC Stepwise Collaborative Learning Model)。方法：2023年7月—2023年12月，以26名进行眼科住培的医生为试验组的研究对象，采用小讲课(Lecture)、教学查房(Rounds)及病例讨论(Case discussion)的LRC渐进协作教学体系，通过定量分析方法评估教学效果。结果：实施LRC渐进协作教学模式后，住培医生平均成绩由培训前的50.00 (40, 50)分提高至培训后的90.00 (80, 100)分，差异具有统计学意义(P＜0.001)。问卷调查满分5分，小讲课、教学查房和病例讨论三种教学形式的满意度满分比例分别为92.3%(24/26)，84.6%(22/26)、76.9%(20/26)，三种教学形式的满意评分分别为5.00 (5.00, 5.00)、5.00 (5.00, 5.00)、5.00 (4.75, 5.00)分。结论：LRC渐进协作教学体系作为住培教学新体系，得到眼科住培医生的认可，促进临床诊疗思维的整体提升，有助于岗位胜任力的培养，为未来教学模式的设计与实施提供了重要参考。

Objective: To introduce the LRC Stepwise Collaborative Learning Model, a novel teaching approach designed to improve clinical thinking skills in ophthalmology training. Methods: From July 2023 to December 2024, 26 ophthalmology residents were included in the experimental group, underwent training using LRC Stepwise Collaborative Learning Model of Lectures, Rounds and Case Discussions. Their educational outcomes were quantitatively analyzed. Results: The LRC Stepwise Collaborative Learning Model improved average resident scores from pre-training [50(40, 50) points] to post-training [90(80,100) points], with a statistical significance (P < 0.001). The questionnaire survey had a maximum score of 5 points, and the rates of full marks for the three teaching forms of lectures, rounds, and case discussions were 92.3% (24/26), 84.6% (22/26), and 76.9% (20/26), respectively. The satisfaction scores for the three teaching forms were 5.00 (5.00, 5.00), 5.00 (5.00, 5.00), and 5.00 (4.75, 5.00) points, respectively. Conclusions: The LRC Stepwise Collaborative Learning Model, as a new training system for residency education, has been recognized by ophthalmology residents. It facilitates the overall improvement of clinical thinking, contributes to competency development, and provides valuable insights for future teaching model designs.

角膜屈光手术是目前屈光手术的主流术式，随着全飞秒、全激光手术方式的发展，手术变得更加安全精准，不仅角膜创伤小，术后恢复时间也进一步缩短。角膜具有屈光特性和典型的生物软组织力学特性，角膜力学特性不仅参与维持角膜形态，影响角膜手术尤其屈光手术的效果及预后，而且还与部分角膜疾病的发生和发展密切相关。近年来生物力学研究发展迅速，其在眼部疾病的诊疗中发挥着越来越重要的作用。角膜生物力学的变化与术前角膜的形态、不同手术方式的选择、术后角膜厚度的改变等多种因素相关，但手术导致的角膜自身形态改变是不可逆的，若术后角膜生物力学的变化较大，可能会引起医源性角膜扩张、继发性圆锥角膜等并发症的发生。为了规避术后角膜扩张风险和指导个性化的术式选择，了解角膜生物力学特性的影响至关重要。文章对角膜的基础结构、角膜生物力学特性、生物力学测量方法和不同术式及不同角膜瓣厚度术后生物力学变化的研究进展进行综述，为近视患者的个性化精准治疗提供理论指导。

Corneal refractive surgery is currently main stream of refractive surgery. With the development of femtosecond and laser surgery, the surgery has become safer and more accurate, resulting in less corneal trauma and a shorter postoperative recovery time. In recent years, biomechanics research has rapidly progressed, and its clinical application has gradually increased. The cornea not only possesses refractive properties but also exhibits typical biological soft tissue mechanical properties. Corneal mechanical properties not only play a role in maintaining corneal morphology but also influence the outcome and prognosis of corneal surgery, especially refractive surgery, and are closely related to the occurrence and development of some corneal diseases. Corneal refractive surgery involves cutting the cornea according to the patient's diopter, which disrupts the integrity of the cornea and inevitably affects its biomechanical stability. Changes in corneal biomechanics are associated with various factors, such as preoperative corneal morphology, the selection of different surgical methods, and postoperative changes in corneal thickness. However, the self-morphology changes caused by surgery are irreversible. If the postoperative changes in corneal biomechanics are significant, it may lead to complications such as postoperative corneal dilation and secondary keratoconus. To avoid postoperative iatrogenic corneal dilation and guide personalized surgical choice, it is crucial to understand the limits of influence of corneal biomechanical properties. This article reviews the research progress regarding corneal biomechanical properties and changes associated with corneal refractive surgery.

先天性白内障是严重影响婴幼儿视功能的疾病。随着白内障手术和人工晶状体植入手术技术的发展，先天性白内障患者术后多可获得高质量的视觉康复。然而，如何更好防治手术相关的不良事件和并发症、先天性白内障伴随的其他眼部发育不良疾病的治疗以及形觉剥夺性弱视的治疗，仍然是先天性白内障手术后需要重视的临床问题。

      封面展示的是双眼先天性白内障术后继发青光眼(左眼)与正常眼(右眼)的对比示意图。该并发症起病隐匿、难以预测，是先天性白内障术后二次致盲的首要原因。针对这一术后并发症，美国婴儿无晶状体眼治疗研究组 (infant aphakia treatment study, IATS)将儿童白内障术后青光眼相关不良事件(glaucoma-related adverse events,GRAEs，包括了青光眼和可疑青光眼)定义为：1)青光眼：眼压>21 mmHg(1 mmHg=0.133 kPa)，且有以下一种或以上的解剖学改变：(a)角膜直径增加；(b)双眼不对称进行性近视漂移伴角膜直径和(或)眼轴的增加；(c)视杯直径进行性增大，杯盘比增加≥0.2；(d)必须进行手术才能控制眼压。2)可疑青光眼：停用局部糖皮质激素(激素)后连续2次眼压>21 mmHg，或可通过抗青光眼药物控制眼压，但无上述任何青光眼的解剖改变。所以，如何更精准地预防该术后并发症，防止对患儿视功能造成进一步的损害，是目前关键的临床问题。

       因此，文章对先天性白内障摘除及人工晶状体植入术后继发性青光眼和可疑青光眼的发生、相关危险因素、治疗和预防的手段进行总结，以期进一步提高对先天性白内障术后高眼压和青光眼防治的认识，减少术后并发症对患儿视功能造成的进一步损害。

先天性白内障是严重影响婴幼儿视功能的疾病。随着白内障手术和人工晶状体植入手术技术的发展，先天性白内障患者术后多可获得高质量的视觉康复。然而，如何更好防治手术相关的不良事件和并发症、先天性白内障伴随的其他眼部发育不良疾病的治疗以及形觉剥夺性弱视的治疗，仍然是先天性白内障手术后需要重视的临床问题。

      封面展示的是双眼先天性白内障术后继发青光眼(左眼)与正常眼(右眼)的对比示意图。该并发症起病隐匿、难以预测，是先天性白内障术后二次致盲的首要原因。针对这一术后并发症，美国婴儿无晶状体眼治疗研究组 (infant aphakia treatment study, IATS)将儿童白内障术后青光眼相关不良事件(glaucoma-related adverse events,GRAEs，包括了青光眼和可疑青光眼)定义为：1)青光眼：眼压>21 mmHg(1 mmHg=0.133 kPa)，且有以下一种或以上的解剖学改变：(a)角膜直径增加；(b)双眼不对称进行性近视漂移伴角膜直径和(或)眼轴的增加；(c)视杯直径进行性增大，杯盘比增加≥0.2；(d)必须进行手术才能控制眼压。2)可疑青光眼：停用局部糖皮质激素(激素)后连续2次眼压>21 mmHg，或可通过抗青光眼药物控制眼压，但无上述任何青光眼的解剖改变。所以，如何更精准地预防该术后并发症，防止对患儿视功能造成进一步的损害，是目前关键的临床问题。

       因此，文章对先天性白内障摘除及人工晶状体植入术后继发性青光眼和可疑青光眼的发生、相关危险因素、治疗和预防的手段进行总结，以期进一步提高对先天性白内障术后高眼压和青光眼防治的认识，减少术后并发症对患儿视功能造成的进一步损害。