Intravitreal injection of 0.3 ml of SF6 gas for persistent subfoveal fluid after scleral buckling for rhegmatogenous retinal detachment

Purpose  To determine the efficacy of intravitreal injection of sulphur hexafluoride (SF6) gas for reducing persistent subfoveal fluid after scleral buckling surgery for macula-off rhegmatogenous retinal detachments. Methods  We injected 0.3 ml of SF6 gas into the vitreous cavity of two eyes of two patients with persistent macular retinal detachment 3 and 5 months after successful scleral buckling. Optical coherence tomography was performed before and after surgery. Results  Subfoveal fluid was displaced peripheral to the fovea immediately after gas injection and the fluid was absorbed gradually in both eyes. Conclusions  Persistent subfoveal fluid after scleral buckling may be treated with intravitreal SF6 gas injection. The authors have no proprietary interest in any aspect of this report     

青光眼双滤过手术的临床报告

目的　观察双滤过手术治疗青光眼的疗效。方法　选择 130只眼晚期、绝对期原发性青光眼随机分为两组 ,每组 6 5只眼。 组行双滤过手术 , 组行小梁切除术。结果　术后随访观察 5～ 2 1月 ,平均 (14 .34±4 .35 )个月。 组眼压≤ 2 1m m Hg(1m m Hg=0 .133k Pa) 6 2只眼 (95 .4 % ) ,其中需局部用药 6只眼 (9.2 % ) ,术后平均眼压为 (19.37± 2 .92 ) m m Hg,较术前下降 (33.2 6± 12 .33) m m Hg; 组眼压≤ 2 1mm Hg5 5只眼 (84 .6 % ) ,其中需局部用药 12只眼 (18.5 % ) ,术后平均眼压 (2 2 .6 2± 5 .6 8) m m Hg,较术前下降 (2 7.83± 8.81) m m Hg。两组手术成功率差异有显著性 (P <0 .0 5 )。并发症 : 组 9只眼 (13.8% ) ,其中浅前房 6只眼 (9.2 % ) ,前房积血 3只眼 (4 .6 % ) ; 组 2 2只眼 (33.8% ) ,其中浅前房 15只眼 (2 3.1% ) ,恶性青光眼 2只眼 (3.1% ) ,脉络膜脱离 2只眼 (3.1% ) ,前房积血 3只眼 (4 .6 % )。两组并发症的发生率差异有显著性 (P <0 .0 5 )。结论　青光眼双滤过手术效果好 ,并发症少 ,是治疗青光眼安全有效的手术方法     

Scleral show

Scleral show is an anatomical condition in which the sclera area is visibly exaggerated due to constitutional, evolutive, or endocrine etiology. It can also occur because of iatrogenies, and is considered one of the most complex blepharoplasty complications. Its evolution and poor response to treatment are questionable. The defect is not always linked to an ectropion, and the basic differences between the two are explained. During blepharoplasties, in order to avoid iatrogenic scleral show, among other complications, one should take special precautions with the quantity and the exact location of the tarsal portion of orbicularis oculi muscle to be resected.     

Human ocular counterroll: assessment of static and dynamic properties from electromagnetic scleral coil recordings

Summary Static and dynamic components of ocular counterroll as well as cyclorotatory optokinetic nystagmus were measured with a scleral search coil technique. Static counterroll compensated for about 10% of head roll when the head was tilted to steady positions up to 20 deg from the upright position. The dynamic component of counterroll, which occurs only while the head is moving, is much larger. It consists of smooth compensatory cyclorotation opposite to the head rotation, interrupted frequently by saccades moving in the same direction as the head. During voluntary sinusoidal head roll, cyclorotation compensated from 40% to more than 70% of the head motion. In the range 0.16 to 1.33 Hz, gain increased with frequency and with the amount of visual information. The lowest values were found in darkness. The gain increased in the presence of a visual fixation point and a further rise was induced by a structured visual pattern. Resetting saccades were made more frequently in the dark than in the light. These saccades were somewhat slower than typical horizontal saccades. Cyclorotatory optokinetic nystagmus could be induced by a patterned disk rotating around the visual axis. It was highly variable even within a same subject and had in general a very low gain (mean value about 0.03 for stimulus velocities up to 30 deg/s). It is concluded that cyclorotational slip velocity on the retina is considerably reduced by counterroll during roll of the head, although the residual cyclorotation after the head has reached a steady position is very small.     

视网膜脱离巩膜环扎术后眼前节结构的初步观察

目的 观察巩膜环扎术后眼前节结构的变化,探讨术后继发性闭角型青光眼的发病机制。方法 应用超声生物显微镜检查３０例（３３只眼）孔源视网膜脱离患者术前、后３－７天的活体奶前节形态结构,并分别进行定量测定,检查结果经统计学分析两组间配对ｔｓｗｃｗ,以Ｐ〈０．０５作为差异有显著性标准。结果 术前１只眼存在裂隙样睫状体脱离。术后１１只眼（３３．３％）发生睫状体脱离,睫状体增厚水肿;术前睫状体厚度为（８２１．     

巩膜扣带手术后视物变形的原因分析

目的 探讨巩膜扣带手术后视网膜复位患者视物变形的原因。 方法 对巩膜扣带手术后视网膜成功复位的79例79只眼行临床观察，手术后2周、2、6个月及1年时行Amsler表检查，分为视物变形组和无视物变形组；同时行检眼镜、荧光素眼底血管造影（FFA）和光相干断层扫描（OCT）检查。并对手术后2周视物变形10只眼和正常人10只眼行视盘-中心凹角测量。 结果 79只眼手术后2周51只眼（64.56%）视物变形，视物变形眼和正常眼的视盘-中心凹角无明显差异(P=0.880)。79只眼中44只眼(视物变形组35只眼，无视物变形组9只眼) 手术后2周时检查OCT和FFA ，视物变形组OCT发现黄斑结构异常31只眼(88.57%)，有7种类型，主要为神经上皮层脱离（74.29%）；FFA发现黄斑结构异常6只眼(17.14%)，也主要为神经上皮层脱离(66.67%)。无视物变形组OCT发现神经上皮层脱离和色素上皮层脱离各1只眼，FFA未见异常。手术后2、6个月、1年时随访，各有18只眼（18/28）、5只眼(5/9)和3只眼(3/7)异常黄斑结构好转，视物变形减轻或消失；而黄斑前膜形成后未见明显变化，视物变形严重而持续。 结论 巩膜扣带手术后视物变形的主要原因是黄斑结构异常，手术后早期和晚期视物变形的主要原因分别是神经上皮层脱离和黄斑前膜。（中华眼底病杂志，2004，20：94-97）     

光导直视下巩膜扣带术治疗硅油眼视网膜脱离的临床分析

目的 总结硅油填充眼视网膜脱离复发时应用光导直视下巩膜扣带术治疗的效果.方法 对就诊于吉林大学第二医院并接受光导直视下巩膜扣带术治疗硅油眼视网膜脱离复发的12例(12只眼)患者进行回顾性分析.结果 应用光导直视下巩膜扣带术治疗后网膜复位11只眼(91.7%),其中8只眼行硅油取出术后网膜保持复位.术眼均保持了一定视力,其中4只眼(33.3%)视力在0.1以上.结论 对于硅油填充术后视网膜再脱离范围局限、前部PVR轻微、裂孔较明确、多位于赤道前、下方裂孔、伴有孔缘局部网膜僵硬的上方裂孔的患者,采用光导直视下行裂孔冷冻、巩膜外垫压或联合环扎术进行治疗,取得了较好的治疗效果.     

巩膜隧道切口和透明角膜切口对白内障超声乳化摘除术患者术后泪膜的影响

目的 探究巩膜隧道切口和透明角膜切口对白内障超声乳化摘除术患者术后泪膜的影响。 方法 选取2014年2月至2015年10月接受白内障超声乳化摘除手术的白内障患者86例为研究对象,按手术切口不同分为实验组和对照组,每组43例。实验组患者采用透明角膜切口行白内障超声乳化摘除术,对照组患者采用巩膜隧道切口进行手术,分别于术后第1、7、15和30天观察两种切口白内障超声乳化摘除术对患者泪膜功能的影响。 结果 术后第1、7、15天,实验组患者的泪膜破裂时间均较术前缩短,且实验组患者的泪膜破裂时间显著短于对照组;术后第30天,两组患者的泪膜破裂时间均较术前明显延长,差异有统计学意义(P均<0.05);术后第1、7、15、30天,两组患者的泪液分泌量均较术前明显增多,且实验组患者的泪液分泌量明显多于对照组,差异均有统计学意义(P均<0.05)。 结论 与巩膜隧道切口行白内障超声乳化摘除术比较,透明角膜切口对患者术后泪膜功能的影响较小,是更值得在临床推广的白内障超声乳化摘除术的一种切口方式。     

不放液巩膜外加压治疗视网膜脱离手术的适应证探讨

目的 探讨不放液巩膜外加压治疗视网膜脱离手术的适应证.方法 回顾分析83例(85只眼)增生性玻璃体视网膜病变﹙proliferative vitreoretinopathy,PVR)C2级以下孔源性视网膜脱离(rhegmatogenous retinal detachment,RRD)行不放液的巩膜外加压术临床资料,分析视网膜解剖复位率、术后视力和手术并发症.83例患者术后随访时间3～48个月,平均9.2个月.结果视网膜复位79只眼,手术成功率为92.9%.PVRA级、B级、 C1级及 C2级视网膜复位率比较其差异无统计学意义(P>0.05).手术并发症为3.5%,术后视力进步73只眼,占85.9%.结论 只要掌握好手术的适应证,不放液的巩膜外加压手术成功率高,手术并发症少,术后视力恢复快,适合于非复杂性视网膜脱离.     

隧道巩膜切口与透明角膜切口超声乳化白内障手术的临床效果分析

目的探讨老年性白内障摘除人工晶状体植入术两种不同术式的临床疗效;评价隧道巩膜切口与透明角膜切口的疗效差异。方法对年龄60～80岁,平均(68.4±9.1)岁的老年性白内障患者按前后阶段分成两组,A组98例(109只眼),行隧道巩膜切口白内障超声乳化摘除联合人工晶状体植入术;B组216例(258只眼)行透明角膜切口白内障超声乳化摘除联合折叠式人工晶状体植入术。分析两种不同切口及相应不同类型人工晶状体植入方式的优缺点。结果术后视力：两组术后1周、1个月、3个月的裸眼视力及最佳矫正视力存在显著性差异。术后并发症有轻度角膜内皮水肿、重度角膜内皮水肿、重度前段葡萄膜反应、人工晶状体夹持等。结论角膜透明切口白内障超声乳化摘除联合折叠式人工晶状体植入术术后散光小,并发症少,视力恢复好。