共查询到20条相似文献,搜索用时 0 毫秒
1.
Pars plana lensectomy with double-capsule-supported intraocular lens implantation in children 总被引:1,自引:0,他引:1
Onol M Ozdek SC Köksal M Hasanreisoğlu B 《Journal of cataract and refractive surgery》2000,26(4):486-490
An alternative technique to manage pediatric cataracts comprises a pars plana lensectomy and anterior vitrectomy with anterior and posterior capsulotomies and posterior chamber heparin-surface-modified intraocular lens (IOL) implantation in the ciliary sulcus through a scleral tunnel. The surgical results in 7 eyes of 6 consecutive patients between 3.5 and 12.0 years old with developmental or traumatic cataract who had surgery using this technique were evaluated prospectively. Follow-up ranged from 12 to 19 months. All 7 eyes maintained a clear pupillary axis and a well-centered IOL from immediately after surgery to the last follow-up. Final best corrected visual acuity was 20/40 or better in 71% of cases. 相似文献
2.
3.
Pars plana vitrectomy with pars plana tube implantation in eyes with intractable glaucoma 总被引:1,自引:0,他引:1 下载免费PDF全文
S. Kaynak N. F. Tekin I. Durak A. T. Berk A. O. Saatci M. F. Soylev 《The British journal of ophthalmology》1998,82(12):1377-1382
AIMS—Intractable glaucoma is glaucoma resistant to medical therapy and conventional surgical procedures. In this study, a planned surgical technique is discussed for controlling the increased intraocular pressure in selected cases with intractable glaucoma.
METHODS—Total pars plana vitrectomy with pars plana tube implantation was performed in 17 eyes of 17 cases with intractable glaucoma. Patients with neovascular glaucoma were not included in this study. The mean age of these patients (seven men, 10 women) was 44.6 (SD 22.1) years and mean follow up period was 30.3 (15.5) months (range 4-71). Drainage implants with a disc were used in 16 cases, whereas, a tube with scleral buckle (Schocket surgery) was preferred in one case. An intraocular pressure below or equal to 20 mm Hg without any adjunctive medication or with only one type of antiglaucomatous drop was considered as an adequate operative outcome.
RESULTS—16 out of 17 eyes maintained adequate pressure control. Only three out of these 16 eyes required prophylactic antiglaucomatous medications. One patient underwent reoperation for pressure control. The most severe complications observed postoperatively were intravitreal haemorrhage (one case), choroidal detachment (one case), implant failure (one case), total retinal detachment (two cases), and corneal endothelial decompensation (five cases).
CONCLUSION—Pars plana placement of drainage tube following pars plana vitrectomy should be considered as an alternative method for controlling increased intraocular pressures in selected patients with intractable glaucoma.
Keywords: glaucoma; pars plana vitrectomy; pars plana tube implantation 相似文献
METHODS—Total pars plana vitrectomy with pars plana tube implantation was performed in 17 eyes of 17 cases with intractable glaucoma. Patients with neovascular glaucoma were not included in this study. The mean age of these patients (seven men, 10 women) was 44.6 (SD 22.1) years and mean follow up period was 30.3 (15.5) months (range 4-71). Drainage implants with a disc were used in 16 cases, whereas, a tube with scleral buckle (Schocket surgery) was preferred in one case. An intraocular pressure below or equal to 20 mm Hg without any adjunctive medication or with only one type of antiglaucomatous drop was considered as an adequate operative outcome.
RESULTS—16 out of 17 eyes maintained adequate pressure control. Only three out of these 16 eyes required prophylactic antiglaucomatous medications. One patient underwent reoperation for pressure control. The most severe complications observed postoperatively were intravitreal haemorrhage (one case), choroidal detachment (one case), implant failure (one case), total retinal detachment (two cases), and corneal endothelial decompensation (five cases).
CONCLUSION—Pars plana placement of drainage tube following pars plana vitrectomy should be considered as an alternative method for controlling increased intraocular pressures in selected patients with intractable glaucoma.
Keywords: glaucoma; pars plana vitrectomy; pars plana tube implantation 相似文献
4.
5.
Wensheng Li Gang Sun Ronghan Wu Xindan Wang Ming Xu Changwen Sun 《Acta ophthalmologica. Supplement》2009,87(8):896-900
Purpose: This study aimed to evaluate the longterm results of phacovitrectomy and foldable intraocular lens (IOL) implantation in eyes with significant cataract and co‐existing vitreoretinal diseases. Methods: We carried out a retrospective study of 186 eyes of 149 patients with various vitreoretinal abnormalities and visually significant cataracts. Vitreoretinal surgery was combined with phacoemulsification and foldable IOL implantation. Main outcome measures were visual acuity (VA), preoperative data, and intraoperative and postoperative complications. Results: The most common indications for surgery were non‐diabetic vitreous haemorrhage and proliferative diabetic retinopathy. Preoperative vision ranged from 0.6 to light perception; postoperative vision ranged from 1.2 to no light perception. Postoperatively, in 162 eyes (87.1%) VA improved by ≥ 3 lines on the decimal chart. In 14 eyes (7.5%), vision remained within 3 lines of preoperative levels and in 10 eyes (5.3%), vision had decreased by the last follow‐up. Postoperative complications included elevated intraocular pressure and posterior capsule opacification, corneal edema, macular edema, fibrinous reaction, vitreous hemorrhage, corneal epithelial defects, anterior chamber hyphema, choroidal detachment, persistent macular hole, posterior synechiae, recurrent retinal detachment, rubeosis iridis, neovascular glaucoma. Conclusions: Combined vitreoretinal surgery and phacoemulsification with foldable IOL implantation is safe and effective in treating vitreoretinal abnormalities co‐existing with cataract. Based on extensive experience with the combined procedure, we suggest that combined surgery is recommended in selected patients with simultaneous vitreoretinal pathological changes and cataract. 相似文献
6.
目的 对比分析两种联合术式人工晶状体植入术治疗增生性糖尿病视网膜病变的安全性和有效性。方法 回顾性分析2011年3月至2013年10月我院收治的增生性糖尿病视网膜病变行联合手术的患者95例(95眼),随机分为两组,术式1组49眼行白内障超声乳化术联合玻璃体切割囊袋内植入后房型人工晶状体;术式2组46眼行玻璃体手术中后路切除晶状体,保留前囊膜,前囊上睫状体沟内植入人工晶状体。观察两组患者术后视力改善及术后并发症情况。术后随访5个月~2.5a。结果 术式1组视力改善40眼(81.63%);术式2组视力改善28眼(60.87%),两组术后视力改善眼数比较差异有统计学意义(χ2=5.028,P=0.025)。术式1组术后发生虹膜新生血管(irisneovascuiarization,INV)1眼;术式2组术后发生INV7眼,两组术后INV发生率差异有统计学意义(χ2=5.342,P=0.021)。两组患者术后视力改善不佳者多伴有明显的糖尿病黄斑水肿、硬性渗出或视网膜缺血。术后主要并发症包括:角膜水肿(术式1组12眼,术式2组5眼)、暂时性眼压升高(术式1组4眼,术式2组5眼)、葡萄膜炎表现(术式1组16眼,术式2组14眼)、玻璃体积血(术式1组4眼,术式2组6眼)、视网膜脱离(两组均为2眼)、新生血管性青光眼(术式1组1眼,术式2组5眼)、后发性白内障(术式1组7眼,术式2组6眼)。结论 玻璃体切割联合晶状体手术治疗合并白内障的增生性糖尿病视网膜病变是安全有效的;术式l组优于术式2组,其术后INV和新生血管性青光眼的发生率也较低;糖尿病黄斑病变是影响术后视力提高的主要原因。 相似文献
7.
Louis J. Girard 《Survey of ophthalmology》1982,27(2):96-101
A comparison has been made between pars plana lensectomy and intracapsular cataract extraction. Pars plana lensectomy has been shown to have many advantages. It is applicable to any age, while intracapsular cataract extraction is restricted to patients over 30 years old. It can be used in any type of cataract, whereas intracapsular cataract extraction is restricted to senile cataracts. It requires less patient preparation, less instrumentation, and less surgical dexterity than does intracapsular cataract extraction. It allows intraocular examination at the time of surgery. It can be combined with other surgical procedures (intraocular lens implantation, vitrectomy, cryoretinopexy, scleral buckle, etc.). It leaves the eyes in better condition postoperatively with fewer postoperative complications, and it gives good or better visual results than intracapsular cataract extraction.It is now unnecessary to learn (and teach) multiple techniques to handle different ages and types of cataracts since pars plana lensectomy manages them all with fewer complications. 相似文献
8.
Fangju Han Wei Liu Xiangwei Shu Ruili Tan Qiang Ji Xiangjuan Zhai 《Indian journal of ophthalmology》2014,62(6):688-691
Purpose:
The purpose of this study was to evaluate the clinical efficacy and safety of modified posterior chamber intraocular lens (PCIOL) implantation with transscleral fixation.Design and Setting:
This is a study, which is conducted at Department of Ophthalmology, Jinan Eye Hospital, Jinan Second People''s Hospital.Materials and Methods:
A total of 82 patients who were scheduled for sutured PCIOL were divided randomly into modified and conventional groups. The former underwent PCIOL through pars plana fixation with knot buried and without scleral flap and the latter underwent transscleral fixation of PCIOL in the ciliary sulcus. The main outcome measures included operative time, postoperative visual acuity, and postoperative complications.Results:
The mean operative time of the modified group was 39.95 ± 5.87 min, which was significantly less than that of the conventional group (45.77 ± 5.21 min; P < 0.05). No difference was found in postoperative visual acuity between the two groups. There were no significant postoperative complications, including knot exposure, endophthalmitis, and retinal detachment in either group. The optical clamping of PCIOL was prone to occur in the conventional group.Conclusion:
Modified sutured PCIOL implantation is a safe, effective, and feasible technique for the correction of aphakia in eyes without adequate posterior capsular support. 相似文献9.
A. Galand 《International ophthalmology》1980,2(3):163-167
During the same period, 22 secondary cataracts were operated on, 11 by the limbus and 11 by the pars plana. Among those operated on by way of the limbus, four, bearing an iridocapsular lens, had to undergo further surgery because the opening was too small. The pars plana approach avoids this situation and permits the use of a phacophage. 相似文献
10.
Lipid accumulation and protein modifications of Bruch’s membrane in age-related macular degeneration 下载免费PDF全文
Tomaso Caporossi Ruggero Tartaro Giancarlo Albani Francesco Bar Fabrizio Giansanti Stanislao Rizzo 《国际眼科》2021,14(5):774-776
Age-related macular degeneration (AMD) is a progressive retinal disease, which is the leading cause of blindness in western countries. There is an urgency to establish new therapeutic strategies that could prevent or delay the progression of AMD more efficiently. Until now, the pathogenesis of AMD has remained unclear, limiting the development of the novel therapy. Bruch’s membrane (BM) goes through remarkable changes in AMD, playing a significant role during the disease course. The main aim of this review is to present the crucial processes that occur at the level of BM, with special consideration of the lipid accumulation and protein modifications. Besides, some therapies targeted at these molecules and the construction of BM in tissue engineering of retinal pigment epithelium (RPE) cells transplantation were listed. Hopefully, this review may provide a reference for researchers engaged in pathogenesis or management on AMD. 相似文献
11.
目的观察分析睫状体平坦部及其附近磁性异物的摘出。方法回顾性分析位于睫状体平坦部附近的磁性异物20例(20眼)。结果CT扫描及X线定位确诊20例眼内磁性异物位于睫状体平坦部及其附近,其中19例进行经巩膜的异物摘出术,1例因伴有玻璃体浑浊而进行玻璃体切除眼内异物摘出联合手术。一次异物摘出成功率为100%。术后视力较术前提高者占90.00%。结论对睫状体平坦部及其附近磁性异物,传统经巩膜的异物摘出手术是一种简单、安全、有效和经济的治疗方案。 相似文献
12.
目的: 评价玻璃体手术中保留前囊膜的临床效果。方法: 选取 2004- 02/2005- 02 在我院行保留前囊膜的玻璃体晶状体联合切割手术患者 15 例, 其中巨大裂孔源性视网膜脱离患者 4 例, 糖尿病性视网膜病变(Ⅵ期)患者 2 例, 裂孔源性视网膜脱离患者 9 例(复发性裂孔原性视网膜脱离患者 3 例)PVR分级均在 C级以上。眼内注气者 6 例, 硅油填充者 9 例。追踪观察至少3mo, 根据其手术前后的视力及并发症对手术效果做出评价。结果: 所有患者术后视力都高于术前或与术前相等, 平均视力提高 3±3 行。有 8 例患者在术后 2mo 成功植入后房型人工晶状体( PCIOL) , 其中 2 例为硅油取出的同时植入, 另外 6 例为眼内注气患者。术后随访期间未发现角膜失代偿、瞳孔阻滞和视网膜再次脱离等并发症。结论: 完整保留前囊膜可以避免复杂性视网膜脱离患者在玻璃体联合晶状体切割术中和术后由于眼内注气或硅油填充而产生的并发症, 并有利于 PCIOL的植入,保留了虹膜的正常形态, 是一种理想的手术方式。 相似文献
13.
AIM: To describe a via pars plana anterior iris enclavation IOL fixation technique. METHODS: A total of 35 consecutive aphakic vitrectomised patients (average age 71±7.14y) underwent pars plana vitrectomy (PPV) and via pars plana anterior iris enclavation IOL fixation. RESULTS: The mean preoperative best corrected visual acuity (BCVA) was 0.11±0.14 logMAR, the mean post-operative BCVA was 0.07±0.11 logMAR. The preoperative mean spherical equivalent was 7.22±4.21. The final mean spherical equivalent was -0.25±0.15. No eyes had hypotony, retinal or choroidal detachment or endophthalmitis. CONCLUSION: This technique may be a safe and useful in the case of aphakia, and a prospective study would be useful to confirm this findings. 相似文献
14.
Management of surgically dislocated intravitreal lens fragments by pars plana vitrectomy. 总被引:3,自引:0,他引:3
We examined 26 eyes (19 of them following phacoemulsification) with surgically dislocated intravitreal lens fragments; 24 eyes were subsequently operated on using pars plana vitrectomy for removal of lens fragments. From this select group of patients we found moderate to severe uveitis, glaucoma, and vitreous opacification present in virtually all cases. Less common complications were retinal detachments (six cases) and bullous keratopathy; the latter problem was found most commonly in eyes subjected to anterior segment maneuvers such as the use of lens loops or vitreous irrigation for removal of the lens material. Pars plana vitrectomy proved an excellent method for removal of lens fragments. A simultaneous two-instrument technique using the Wilson foreign-body forceps and the vitrectomy machine facilitated removal of the denser sclerotic lens fragments. This procedure resulted in resolution of the uveitis and glaucoma with improvement in visual acuity in 20 of the 24 eyes. However, only 10 of the 24 patients operated on obtained 20/40 or better visual acuity. A relatively prompt pars plana vitrectomy in eyes subjected to a minimum of surgical trauma yielded the best visual results. 相似文献
15.
目的 分析进行过玻璃体手术的患者行现代白内障囊外摘出术 (ex-tracapsular cataractextraction,ECCE)的特殊性及手术技巧。方法 2 0例玻璃体切割术后患者再次入院行 ECCE,术中用前房维持器 (anterior cham berm aintainer,ACM)维持前房深度后进行手术。结果 全部患者术后眼压正常 ,未见视网膜脱离复发及脉络膜脱离 ,术后视力均有所提高。结论 这类患者无玻璃体填充 ,一旦切开前房即会出现眼内房水流出 ,眼压过低而造成眼球壁塌陷 ,使得白内障手术操作困难 ,我院采用 ACM持续灌注及自闭式切口维持眼球内压力 ,取得较好临床效果。 相似文献
16.
Mehmet Citirik MD Cosar Batman MD Tolga Bicer MD Orhan Zilelioglu MD 《Clinical & experimental optometry》2009,92(5):416-420
Purpose: To assess the alterations in keratometric astigmatism following the 25‐gauge transconjunctival sutureless pars plana vitrectomy versus the conventional pars plana vitrectomy. Methods: Sixteen consecutive patients were enrolled into the study. Conventional vitrectomy was applied to eight of the cases and 25‐gauge transconjunctival sutureless vitrectomy was performed in eight patients. Keratometry was performed before and after the surgery. Results: In the 25‐gauge transconjunctival sutureless pars plana vitrectomy group, statistically significant changes were not observed in the corneal curvature in any post‐operative follow‐up measurement (p > 0.05); whereas in the conventional pars plana vitrectomy group, statistically significant changes were observed in the first postoperative day (p = 0.01) and first postoperative month (p = 0.03). We noted that these changes returned to baseline in three months (p = 0.26). Conclusion: Both 25‐gauge transconjunctival sutureless and conventional pars plana vitrectomy are effective surgical modalities for selected diseases of the posterior segment. Surgical procedures are critical for the visual rehabilitation of the patients. The post‐operative corneal astigmatism of the vitrectomised eyes can be accurately determined at least two months post‐operatively 相似文献
17.
We evaluated the safety and efficacy of pars plana vitrectomy (PPV) with primary posterior iris claw intraocular lens (IOL) implantation in cases of posterior dislocation of nucleus and IOL without capsular support. This was a retrospective interventional case series. Fifteen eyes underwent PPV with primary posterior iris claw IOL implantation performed by a single vitreoretinal surgeon. The main outcome measures were changes in best corrected visual acuity and anterior and posterior segment complications. A total of 15 eyes were included in this study. Eight had nucleus drop, three had IOL drop during cataract surgery and four had traumatic posterior dislocation of lens. The final postoperative best corrected visual acuity was 20/60 or better in 11 patients. This procedure is a viable option in achieving good functional visual acuity in eyes without capsular support. 相似文献
18.
Ali M. Al-Halafi Essam Al-Harthi Saleh Al-Amro Ahmed Abu El-Asrar 《Saudi Journal of Ophthalmology》2011,25(2):187-192
Objective
To report factors predicting the visual outcome and complications in eyes that underwent pars plana vitrectomy (PPV) to manage dislocated intraocular lenses (IOLs).Patients and methods
A retrospective chart review was performed. Clinical data recorded from the patient charts include, demographic, preoperative, intraoperative, and postoperative, with emphasis on visual acuity, interval between IOL dislocation and pars plana vitrectomy, surgical method and complications. Patients with follow-up of less than three months were excluded.Results
Ninety-four patients were identified, 63 males and 31 females. Age ranged from 2 to 85 years (mean 52.6). The range of follow-up was 3 to 108 months (mean ± SD 19.4 ± 17.4 months). The final visual acuity was 20/50 or better in 52 (55.3%) eyes. Our analysis indicated that visual rehabilitation with IOL was significantly associated with better visual acuity as compared with eyes that were left aphakic (P = 0.0092). There was a trend toward a better visual outcome when PPV was performed within two weeks from the diagnosis of the dislocated IOL which was associated with good visual outcome (20/200 or better) in 85.7% of eyes compared with 78.8% of eyes. Management of IOL by interofixation was associated in (90.0%) of eyes with good vision (20/200 or better) compared to 76.1% eyes that had exchange of IOL through the limbus. Postoperative complications include cystoid macular edema in 9 (9.6%), glaucoma in 9 (9.6%), bullous keratopathy in 8 (8.5%), retinal detachments in 6 (6.4%) eyes, and relapsing uveitis in 2 (2%).Conclusion
In this series, the final visual outcomes were improved and the rate of postoperative complications were low. Eyes that were pseudophakic had significantly good visual outcome compared with eyes that were left aphakic. To the best of our knowledge, this may be the largest study on dislocated IOL removal by PPV with good visual results compared to other studies. 相似文献19.
George W. Blankenship 《Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie》1989,227(2):136-138
Ten eyes had posterior chamber lenses implanted in the ciliary sulcus in front of the anterior lens capsule during diabetic pars plana lensectomy and vitrectomy. Six months later, nine eyes had improved vision and one had the same vision as compared with preoperative acuity levels. Two eyes had 0.5 and eight eyes had 0.1 or better acuity. None of the eyes developed iris or angle neovascularization or glaucoma, and all ten eyes had clear vitreous cavities with attached maculas. The posterior chamber lenses were well tolerated and provided good visual rehabilitation.This project was supported in part by the Bascom Palmer Eye Institute patients and contributors; Research to Prevent Blindness, Inc., New York City; Florida Lions Eye Bank Laboratory; and the Brenn Green Diabetic Retinopathy Funds, Miami, Florida 相似文献
20.
目的:探求一种安全有效、并发症少且更适合眼外伤时晶状体玻璃体联合手术的晶状体切除术方式.方法:对27例(27眼)眼外伤行晶状体玻璃体联合手术者进行回顾性研究.所有患者均由睫状体平坦部巩膜切口行改良晶状体切除术,保留晶状体囊,并联合玻璃体视网膜手术.结果:所有患者均成功地切除了晶状体并最大限度保留有用的晶状体囊,患者术后视力均有不同程度的提高.继发性青光眼术后眼压得到控制.结论:该改良晶状体切除术是一种安全有效、并发症少且更适合眼外伤时晶状体玻璃体联合手术的手术方式. 相似文献