台盼蓝在白色白内障超声乳化术中的应用

目的 探讨台盼蓝对晶状体前囊染色在白色白内障手术中应用效果。方法82例87眼随机分为染色组43例46眼与对照组39例41眼，染色组术中用台盼蓝染色，观察前囊膜着色效果、撕囊成功率、在超声乳化术中囊膜保护的完整率以及术中、术后并发症等，并与对照组进行统计学分析。结果染色组前囊膜均均匀着色，撕囊成功率与术中囊膜完整率均为100％，与对照组比较有明显统计学差异；术后视力、眼压、炎症反应、角膜内皮水肿与对照组比较无统计学差异。结论台盼蓝染色是一种简单安全的晶状体前囊膜染色技术，提高了前囊膜的可见度，有助于白色白内障超声乳化术连续环形撕囊术(continuous curvilinear capsulorhexis,COC)和整个手术的顺利进行。     

非染色连续环形撕囊在白色白内障超声乳化中的应用观察

目的:探讨非染色连续环形撕囊超声乳化联合人工晶状体植入术治疗白色白内障的疗效。方法:对458眼白色白内障施行非染色连续环形撕囊超声乳化联合人工晶状体植入术,观察其撕囊成功率、术中的并发症、术后视力、术后角膜水肿反应等指标。结果:患者458眼中撕囊成功441眼(96.3%),17眼(3.7%)囊膜出现放射状撕裂,以剪刀剪出一囊膜瓣再完成撕囊。术中后囊膜破裂9眼(2.0%),术后轻度角膜水肿94眼(20.5%),中度水肿29眼(6.3%),重度水肿8眼(1.7%),水肿均在2～10d内消退,无角膜内皮失代偿。术后第1d视力均有明显的提高,视力>0.3者329眼(71.8%),术后1wk视力>0.5者417眼(91.0%)。结论:非染色连续环形撕囊超声乳化联合人工晶状体植入术治疗白色白内障虽手术操作较为困难,但熟练后成功率较高,术后视力恢复良好。     

台盼蓝囊膜染色剂在白内障连续环形撕囊手术中的应用

目的研究台盼蓝囊膜染色剂在治疗白色白内障中,是否有助于连续环形撕囊的顺利完成及白内障手术的顺利进行。方法79例(80眼),随机分为2组,染色组40例(41眼),对照组39例(39眼),染色组使用台盼蓝囊膜染色剂,术中观察及对比前囊膜染色情况、连续环性撕囊成功率、晶状体后囊破裂及人工晶状体囊袋内植入情况,术后视力、前房炎症反应、角膜、人工晶状体有无蓝染及后囊混浊情况。并与对照组进行统计学分析。结果染色组的术中染色均匀,连续环形撕囊及人工晶状体囊袋内植入率为97.7%,晶状体后囊破裂率为2.44%,与对照组进行统计学分析有显著差异。术后追踪观察3个月,染色组术后视力好于对照组,前房炎症反应、晶状体后囊混浊2组无统计学差异。染色组术后角膜、人工晶状体未见蓝染,未见术中及术后并发症。结论台盼蓝囊膜染色剂目前是一种安全可靠的技术,手术中可以看清前囊,使连续环形撕囊顺利进行,人工晶状体稳定的位于囊袋内,增加了白色白内障手术的成功率。     

白内障手术连续环形撕囊的染色技术

目的:观察VisionBlue（0.06％台盼蓝）染色在白色白内障超声乳化手术中是否有助于连续环形撕囊（CCC）及整个手术安全顺利进行。方法:30例30只眼,术中前房注入0.1ml VisionBlue,观察前囊膜着色效果、撕囊成功率、在超声乳化手术中囊膜保护的完整率以及角膜内皮、眼压和房水炎症反应等。结果:28眼前囊膜周边及中央一次性均匀着色,2只眼经过两次染色后着色均匀;撕囊全部成功顺利,在后续的超乳手术中保留的囊膜边界清晰,完整率30/30;术中无并发症,术后视力提高,炎症反应轻,眼压及角膜内皮与术前无统计学差异;追踪3个月未见明显副作用。结论:VisionBlue染色是一种简单安全的技术,提高了前囊膜的可见度,有助于白色白内障超声乳化手术CCC和整个手术的安全顺利进行。     

台盼蓝囊膜染色剂在复明工程成熟期白内障手术撕囊中的应用

目的 探讨台盼蓝囊膜染色剂在白内障复明工程白内障手术撕囊中的应用价值。设计 回顾性比较性病例系列。研究对象 2012-2013年期间河北省兴隆县人民医院“百万贫困白内障患者复明工程” 成熟期或过熟期白内障手术患者84例（84眼）。方法 随机分为观察组和对照组,每组42例（42眼）。观察组超声乳化白内障手术过程中接受0.1 ml 0.1%台盼蓝磷酸盐缓冲溶液前囊膜染色后行连续环形撕囊,对照组超声乳化白内障术中撕囊前未予染色。主要指标  术中囊膜染色情况,撕囊成功率,术后视力、眼压、前房炎症反应、角膜水肿及后囊混浊情况。结果 观察组台盼蓝染色后,晶状体前囊膜100%被染成淡蓝色。撕囊成功率观察组97.6%,对照组78.6%（P=0.003）;术后1个月视力、眼压、前房炎症反应、角膜水肿情况两组比较差异无统计学意义（均为P>0.05）;术后3个月后囊膜明显混浊观察组1/42例、对照组6/42例（P=0.027）。结论 白内障复明工程成熟期或过熟期白内障手术中采取台盼蓝囊膜染色剂行前囊膜染色,使连续环形撕囊相对容易,保证手术更顺利进行。（眼科,2014,23：271-273）     

透明质酸酶及亚甲蓝在白内障防盲手术中的临床应用对比

目的 探讨白内障防盲手术中透明质酸酶和亚甲蓝染色对麻醉效果和连续环形撕囊成功率及对手术效果的影响.方法 100例(100眼)白色白内障随机分为2组进行前瞻性研究.球周麻醉中加入透明质酸酶及改良亚甲蓝前囊膜染色组53例,对照组(球周麻醉中不加入透明质酸酶和前囊不染色47例.球周麻醉后,行现代白内障囊外摘除及人晶状体植入术.比较环形撕囊成功率、术中并发症、术后反应情况、视力、眼压.结果 2组术中撕囊成功率及人工晶状体体囊袋内植入率均有差别,与对照组相比差异有统计学意义;2组术后反应情况、视力、眼压无统计学意义.结论 球周麻醉中加入透明质酸酶及改良亚甲监染色明显提高连续环形撕囊成功率.降低白内障手术并发症,无明显副作用,且廉价易得,适合在防盲白内障手术中推广.     

台盼蓝在成熟期白内障超声乳化术中的应用

目的探讨台盼蓝着色前囊膜在成熟白内障超声乳化手术中的应用。方法本组32例老年性白内障成熟期、过熟期患者接受台盼蓝前囊膜染色,采用前房气泡下染色法,前房注入0.1mL染色液,数秒钟后用BSS液冲洗置换染液及气泡,注入粘弹剂后,连续环行撕囊。对照组取同期白内障超声乳化患者30例,比较环行撕囊成功率、术后视力、眼压及角膜水肿程度。结果经染色后32例前囊膜均呈淡蓝色,清晰可辨,撕囊成功率达97%,而对照组为80%,有显著差异。术后视力、眼压及角膜内皮水肿无显著差异。结论台盼蓝着色前囊膜后,连续环行撕囊更安全易行。     

高频透热电撕囊器在过熟期白内障超声乳化术中的应用

目的探讨高频透热电撕囊器在过熟期白内障超声乳化术的应用效果。方法选取过熟期白内障患者63例（63只眼）行白内障超声乳化人工晶状体植入术,随机分为两组。A组（常规撕囊镊连续环形撕囊）25例,B组（高频透热电撕囊）38例,对两组撕囊成功率、晶状体囊袋内植入率、术后视力、角膜水肿情况进行比较。结果B组比A组的撕囊成功率及晶状体囊袋内植入率明显高。A组与B组裸眼视力、角膜水肿情况无显著差异。     

台盼蓝染色技术在白内障超声乳化术中的应用

目的 观察在缺乏眼底红光反射的白内障超声乳化术中晶状体前囊膜台盼蓝染色技术的安全性及有效性。方法 对30例（30只眼）成熟期及过熟期白内障患者行超声乳化白内障吸除联合人工晶状体植入术,术中以0．1％的台盼蓝进行前囊膜染色,然后行连续环形撕囊术,观察术中情况,术后随访3个月,观察视力、眼压、角膜及房水情况。结果 30例白内障术中29例撕囊口边缘清晰可见．连续环形撕囊获得成功,手术顺利完成。1例术中囊膜染色不充分,囊口出现放射状撕裂,经补救撕囊．手术得以顺利进行。术后随访未发现与染色有关的眼部并发症。结论 在缺乏眼底红光反射的白内障超声乳化术中,以台盼蓝进行晶状体前囊膜染色后再行连续环形撕囊术是安全有效的方法。     

后囊连续环形撕囊治疗超声乳化术中后囊破裂的疗效观察

目的：：观察白内障超声乳化术中出现后囊破裂行后囊连续环形撕囊( PCCC)的临床效果。方法：对2013-03/10的38例38眼年龄相关性白内障患者行白内障超声乳化,术中出现后囊破裂的患者行后囊连续环形撕囊联合人工晶状体植入术;同期随机选择50例50眼年龄相关性白内障患者行白内障超声乳化联合人工晶状体植入术作为对照组,比较两组患者术后视力及其术后并发症情况,随访3 mo。结果：两组患者术后第1d视力、角膜水肿差异有统计学意义(P<0.05),术后3mo视力及角膜水肿差异无统计学意义(P>0.05);术后第1d眼压升高差异无统计学意义(P>0.05),术后3mo瞳孔及黄斑囊样水肿、视网膜脱离差异无统计学意义。结论：对于超声乳化术中发生后囊破裂的患者术中及时使用后囊连续环形撕除,能减少术后并发症发生,有效提高白内障术后效果。     

Effects of subretinal injection of patent blue and trypan blue in rabbits

PURPOSE: To investigate the histologic and clinical effects of subretinal injection of patent blue (PB) and trypan blue (TB) in rabbits. METHODS: Dutch-belted rabbits (n=8) were vitrectomized followed by subretinal injection of 2.4 mg/ml PB (285 mOsm) and 1.5 mg/ml TB (312 mOsm); balanced salt solution (BSS) (300 mOsm) served as the control. Animals were examined 6, 12, and 24 hr and 14 days after the procedure by fluorescein angiography (FA) and indirect ophthalmoscopy; for retinal toxicity, histologic evaluation studies were performed by light and transmission electron microscopy. RESULTS: FA examination demonstrated window defects suggestive of retinal pigment epithelium (RPE) atrophy in positions of subretinal TB injection, but this was not observed after subretinal injection of PB or BSS. Histologic evaluation disclosed only minimal abnormalities on the photoreceptor outer segment (POS) after subretinal injection of BSS during all follow-up. Subretinal injection of PB caused POS and photoreceptor inner segment (PIS) abnormalities 12 and 24 hr after surgery as well as outer nuclear layer (ONL) damage 14 days after surgery. Subretinal TB injection resulted in POS and PIS damage at 12 hr follow-up. The ONL damage was observed 24 hr after surgery; additionally, POS, PIS, ONL, and RPE abnormalities were observed 14 days after surgery after TB injection. CONCLUSIONS: Subretinal injection of TB induced more significant clinical and histologic damage of neurosensory retina/RPE than did PB or BSS. Future human studies are necessary to access the clinical relevance of these in vivo experiments.     

Permanent blue discoloration of a hydrogel intraocular lens by intraoperative trypan blue

A 79-year-old white man had cataract surgery in the right eye with implantation of an Acqua intraocular lens (IOL) (Mediphacos). Trypan blue 0.1% was used during surgery to stain the anterior capsule and enhance the contrast during capsulorhexis. Seven days after surgery, the patient presented with "dark and double" vision (monocular diplopia). The IOL was decentered superiorly and appeared dark blue. The lens was explanted 2 months after surgery and sent for gross and microscopic analyses in a dry state and after hydration. The same analyses were performed on 2 unused lenses of the same design that had been immersed in diluted trypan blue solutions (0.01% and 0.001%). On the explanted lens, the dark blue staining was denser in the optic, especially in its periphery. The blue discoloration could not be removed after 24 hours of lens immersion in a balanced salt solution at 37 degrees C. Permanent staining of the unused lenses was also obtained after immersion in the trypan blue solutions.     

Cobalt blue light unit filter - A smartphone attachment for blue light photography

Purpose:The aim of this study was to carry out blue light photography of fluorescein-stained corneas using a novel smartphone attachment.Methods:A smartphone attachment known as the cobalt blue light unit (C-BLU) was developed. It can filter out all wavelengths of light except the blue light emerging from the flashlight of a smartphone. A pilot study was carried out wherein the images captured with the C-BLU system were compared with slit-lamp photographs of the same patients. This setup was then used to photo document fluorescein-stained corneas in various clinical settings assembled at point-of-care.Results:Many pathologies of the fluorescein-stained cornea were captured using the C-BLU filter. It was used effectively in various settings (remote eye camps, intensive care units (ICU), pediatric group, corneal trauma triaging, etc.). C-BLU was assembled and used by optometrists and ophthalmology residents. The images captured were used for documenting, assisting in the treatment, and also for telecommunication of the patients’ findings.Conclusion:C-BLU is a low-cost pocket-size filter which is easy to use with a modern smartphone without any technical expertise needed to obtain a clear image of fluorescein-stained pathological corneas.     

Corneal edema and permanent blue discoloration of a silicone intraocular lens by methylene blue.

BACKGROUND AND OBJECTIVE: To report a silicone intraocular lens (IOL) stained blue by inadvertent intraoperative use of methylene blue instead of trypan blue and the results of experimental staining of various lens materials with different concentrations of the same dye. MATERIALS AND METHODS: A "blue dye" was used to enhance visualization during capsulorhexis in a patient undergoing phacoemulsification with implantation of a three-piece silicone lens. Postoperatively, the patient presented with corneal edema and a discolored IOL. Various IOL materials were experimentally stained using methylene blue. Sixteen lenses (4 silicone, 4 hydrophobic acrylic, 4 hydrophilic acrylic, and 4 polymethylmethacrylate) were immersed in 0.5 mL of methylene blue at concentrations of 1%, 0.1%, 0.01%, and 0.001%. These lenses were grossly and microscopically evaluated for discoloration 6 and 24 hours after immersion. RESULTS: The corneal edema resolved within 1 month after the initial surgical procedure. After explantation, gross and microscopic analyses of the explanted silicone lens revealed that its surface and internal substance had been permanently stained blue. In the experimental study, all of the lenses except the polymethylmethacrylate lenses were permanently stained by methylene blue. The hydrophilic acrylic lenses showed the most intense blue staining in all dye concentrations. CONCLUSIONS: This is the first clinicopathological report of IOL discoloration due to intraocular use of methylene blue. This and other tissue dyes may be commonly found among surgical supplies in the operating room and due diligence is necessary to avoid mistaking these dyes for those commonly used during ocular surgery.