病例报告

改良型囊袋张力环与睫状体接触导致反复高眼压一例

Recurrent intraocular hypertension due to exposure of modified capsular tension ring with ciliary body: a case report

:148-153
 
临床上囊袋张力环(capsular tension ring,CTR)与睫状体接触导致的反复持续性高眼压较为少见,本文报告一例改良型CTR植入术后反复持续性高眼压的病例,行“巩膜悬吊线松解术”后高眼压状态有效缓解,考虑可能与巩膜固定缝线过紧,造成改良型CTR局部与睫状体相接触,刺激睫状体分泌过量房水有关。
Recurrent intraocular hypertension caused by contact between capsular tension ring (CTR) and ciliary body is rare clinically. We report a case of recurrent intraocular hy pertension after modified CTR implantation. The IOP returned to normal levels when released the scleral suture. We speculated that the ciliary process irritated by MCTR might increase aqueous humor secretion because of a tight scleral suture.

综述

玻璃体切割术后高眼压的相关因素分析及治疗

Related factors analysis and treatment on high intraocular pressure after vitrectomy

:466-471
 
玻璃体切割术是目前临床上常见的眼科手术之一,其应用广泛,且具有良好的治疗效果,但术后仍会出现各种并发症,眼压升高便是其中常见的一种。玻璃体切割术后眼压升高的病因复杂多样,术前原发病的不同、术中处理方式的差异以及术后并发症均可引起眼压升高,根据不同的病因可以选用更合适的治疗方法。早期的眼压升高较易控制,主要采用药物及激光治疗,晚期眼压升高导致继发性青光眼则相对复杂,以手术治疗为主。该文主要对玻璃体切割术后高眼压的原因分析及治疗进展进行综述。
Pars plana vitrectomy is one of the common ophthalmic surgeries in clinic practice currently, which is widely used with good therapeutic effect. However, various complications may still occur after operation. Elevated intraocular pressure is one of common complications. The causes of postoperative ocular hypertension are complex and diverse. Elevated intraocular pressure could be caused by different preoperative primary diseases, intraoperative management methods,and postoperative complication. More appropriate treatment methods can be selected based on different causes. Early elevated intraocular pressure iseasier to control and is mainly treated with medicine and laser. Late elevated intraocular pressure leads to secondary glaucoma, which is relatively complex and mainly treated with surgery. This review mainly states causes and treatment progress of high intraocular pressure after vitrectomy.
论著

缺氧诱导因子-1信号通路在高眼压模型中的表达

Expression of HIF-1 signaling pathway in the intraocular hypertension model of rats

:125-133
 
目的:研究缺氧诱导因子-1(hypoxia inducible factor-1,HIF-1)信号通路在高眼压状态下的表达情况。方法:利用前房注射磁性微球法建立大鼠高眼压动物模型,通过荧光金逆行标记观察视网膜神经节细胞(retinal ganglion cells,RGCs)的存活情况,提取视网膜组织行Western印迹检测HIF-1α、血管内皮生长因子-A(vascular endothelial growth factor A,VEGF-A)-和促红细胞生成素
(erythropoietin,EPO)的表达,并分析HIF-1α的变化趋势与眼压之间的关系。结果:高眼压1 d时平均眼压为(40.33±2.94) mmHg,第3天为(68.83±2.85) mmHg,第10天时下降至(43.67±3.67) mmHg,后趋于稳定,与对照眼相比差异均有统计学意义(P<0.01)。高眼压2周时中央、中间和周边视网膜的RGCs存活率分别为61.1%±1.1%,68.5%±8.5%和73.6±3.6%,至高眼压3周迅速下降,分别为33.2%±3.2%,43.4%±3.4%和51.4%±2.1%。高眼压3 d时,眼压值达最高,HIF-1α,VEGF-A和EPO的表达亦达高峰,与对照组相比差异均有统计学意义(P<0.01);后随着眼压值下降,表达也随之逐渐减少。眼压升高3 d,7 d,2周分别与对照组的HIF-1α/GAPDH的蛋白灰度比和眼压值间的相关系数为0.977,0.886,0.763,差异具有统计学意义(P<0.01)。结论:HIF-1α的表达在一定条件下与眼压值呈正相关,该通路的早期激活可能在高眼压病程中扮演重要的角色。
Objective: To evaluate the expression of hypoxia inducible factor-1 (HIF-1) signaling pathway in the state of intraocular hypertension. Methods: We established an intraocular hypertension model of BN rats model of BN rats through the injection of magnetic microspheres into anterior chamber angle, and then evaluated this  model by measuring the survival rates of retinal ganglion cells (RGCs) through retrograde Fluorogold labelling. Western blot was used to detect the protein expression of HIF-1α, vascular endothelial growth factor A (VEGF-A) and erythropoietin (EPO) in the retinal tissue, and HIF-1α protein’s alterable trend as well as its relationship with intraocular pressure (IOP) was analyzed. Results: The IOP was (40.33±2.94) mmHg at the ffrst day affer elevation, (68.83±2.85) mmHg at the third day, and (43.67±2.94) mmHg at the tenth day, then kept stable later. TTe survival rates of RGCs among central, middle and peripheral retina decreased from 61.1%±1.6%, 68.5%±2.0%, 73.6%±1.5%, at the second week to 33.2%±1.8%, 43.4%±2.4%, 51.4%±2.1% at the third week, the differences were statistically signiffcant (P<0.01). The protein expression of HIF-1α, VEGF-A and EPO reached the peak at the third day when the IOP was at the highest level, then decreased with the drop of IOP. The correlation coefffcient between the protein gray value of HIF-1α/GAPDH and IOP among the 3rd day, 7th day, 2 weeks and the control was 0.977, 0.886, 0.763 respectively (P<0.01). Conclusion: The expression of HIF-1α had a positive relationship with IOP in certain condition, and the early activation of HIF-1 signaling pathway might play an important role in the process of glaucoma.
专家述评

重视先天性白内障术后高眼压和青光眼的防治

Prioritizing Prevention and Treatment of High Intraocular Pressure and Glaucoma Following Congenital Cataract Surgery

:229-233
 
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.
其他期刊
  • 眼科学报

    主管:中华人民共和国教育部
    主办:中山大学
    承办:中山大学中山眼科中心
    主编:林浩添
    主管:中华人民共和国教育部
    主办:中山大学
    浏览
  • Eye Science

    主管:中华人民共和国教育部
    主办:中山大学
    承办:中山大学中山眼科中心
    主编:林浩添
    主管:中华人民共和国教育部
    主办:中山大学
    浏览
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