玻璃体切割手术相关医源性视网膜裂孔的临床观察

目的分析玻璃体切割手术过程中医源性视网膜裂孔(iatrogenic retinal breaks,氉IRB)的发生率、危险因素及预防措施。方法回顾分析129例133眼玻璃体手术病例,记录眼别、术前诊断、玻璃体后脱离状态、晶状体状态,分析术中IRB的数目、分布及预防措施。结果 133眼中12眼术中出现13个IRB,总体发生率为9.0%。其中,黄斑裂孔或黄斑前膜33眼中3眼(9.1%)出现IRB,增生性糖尿病视网膜病变52眼中6眼(11.5%)出现IRB,玻璃体积血40眼中3眼(7.5%)出现IRB。8眼(6.0%)出现巩膜切口相关IRB,5眼(3.8%)出现其他区域IRB,其中1眼同时存在巩膜切口相关IRB及其他区域IRB。术中制作玻璃体后脱离组的IRB发生率(12.3%)高于术前存在玻璃体后脱离组(6.6%),但差异无统计学意义(P=0.256);有晶状体组的IRB发生率(10.5%)高于术中联合超声乳化组(4.5%)及人工晶状体或无晶状体组(8.0%),但差异均无统计学意义(均为P>0.05)。术后发生视网膜脱离4眼(3.0%),所有视网膜脱离眼经二次手术后视网膜均达到解剖复位。结论各种疾病行玻璃体切割手术均有发生IRB的可能,没有证据表明术中制作玻璃体后脱离及晶状体状态与IRB的发生具有明显相关性。为避免IRB可能引起的玻璃体术后视网膜脱离,术中仔细排查与处理是非常重要的。     

Rhegmatogenous retinal detachment associated with massive spontaneous suprachoroidal hemorrhage and prognosis of pars plana vitrectomy

AIM:To describe the clinical characters of rhegmatogenous retinal detachment (RRD) associated with massive spontaneous suprachoroidal hemorrhage (SSCH). To evaluate optimal timing and prognosis of pars plana vitrectomy.METHODS: A retrospective review of 6 cases (6 eyes) of RRD and massive SSCH among 3772 cases of RRD was conducted. All of 6 patients were treated with twenty-gauge vitrectomy, suprachoroidal blood drainage, phacoemulsification (PHACO) or lensectomy and silicon oil tamponade. The clinical characters, intraoperative findings and treatment outcomes were reported.RESULTS: In the 6 affected eyes of 6 patients (3 men and 3 women; mean age, 53.83y; range 34-61y), preoperative visual acuity ranged from faint light perception (LP) to counting finger (CF). The average interventional duration from visual decreased to surgery was 12.8 d (range 9-15d). All eyes were associated with high myopia and the mean ocular length was 30.32 mm (range 28.14-32.32 mm). Choroidal hemorrhage were successfully drained in the operation of all 6 eyes. Intraoperative findings showed there were multiple retinal breaks in all 6 eyes and in 4 eyes breaks were along supratemporal and/or infratemporal retinal vascular arcade, especially in the edge of chorioretinal atrophy areas. These patients were followed up from 6 to 34mo (Mean, 23.5mo). The best-corrected visual acuity after surgery varied from CF to 20/100, with improvement in 5 eyes (83.33%) and no change in 1 eye (16.67%). Ocular hypertension ocurred in 1 eye (16.67%), which was successfully treated by silicon oil removal combined with trabeculectomy. In 4 eyes, tractional retinal detachment caused by proliferative vitreoretinopathy (PVR) appeared and a secondary surgery of pre-retinal membrane peeling and silicon oil retained were performed. In 4 eyes, silicon oil cannot be removed. The initial and final reattachment rates were 33.33% and 66.67%, respectively.CONCLUSION: RRD associated with massive SSCH is an extremely rare event. The most common risk factor is long axial length. Vitrectomy and choroidal blood drainage can effectively remove suprachoroidal hemorrhage and promote retinal reattachment in these eyes. However, silicon oil could not be removed in most eyes and final visual acuities are generally poor.     

Epiretinal membrane following pars plana vitrectomy for rhegmatogenous retinal detachment repair

AIM: To determine the rate and possible contributors for post-pars plana vitrectomy (PPV) epiretinal membrane (ERM) in patients treated for rhegmatogenous retinal detachment (RRD). METHODS: This prospective, nonrandomized study comprised 47 consecutive patients (47 eyes) with acute RRD treated with 23 G post-PPV. All participants were followed prospectively for 6mo for the development of ERM using spectral domain optical coherence tomography. Preoperative and intraoperative data were collected by questionnaires to surgeons. Main outcome measure was the percentage of the ERM formation following post-PPV for RRD. RESULTS: ERM developed postoperatively in 23 eyes (48.9%), none necessitated surgical removal. There was a statistically significant difference between patients with and without ERM postoperatively in preoperative best corrected visual acuity (median logMAR 1.9 vs 0.3, respectively; P=0.003) rate of macula-off (69.6% vs 37.5%, respectively, P=0.028), and rate of ≥5 cryo-applications (55.6% and 18.8%, respectively, P=0.039). ERM developed mainly between the 1st and 3rd months of follow-up. Macula-off status increased the risk of ERM, with the odds ratio of 3.81 (P=0.031). CONCLUSION: ERM is a frequent post RRD finding, and its development is associated with macula-off RRD.     

Outcomes of 25-gauge pars plana vitrectomy for cytomegalovirus retinitis-related retinal detachment

Purpose:The purpose of this study is to evaluate the anatomical and functional outcomes of 25-gauge (G) pars plana vitrectomy (PPV) in patients with cytomegalovirus retinitis (CMVR)-related rhegmatogenous retinal detachment (RRD).Methods:Single-center retrospective consecutive case series of patients who underwent 25-G PPV for CMVR-related RRD repair with a minimum follow-up of 3 months. Complete anatomic success was defined as the complete attachment of retina including the periphery. Best-corrected visual acuity (BCVA) of ≥20/400 was defined as functional success.Results:Sixteen eyes of 15 patients were included in the study. Eleven patients were human immunodeficiency virus positive, three patients had hematological malignancies, and one patient suffered from dyskeratosis congenita. The mean follow-up was 20.5 ± 17.4 months (range 3–60 months). Complete anatomical success was seen in 15 eyes (93.75%). One eye had a residual inferior detachment with attached macula. Silicone oil was used as tamponade in 15 eyes and C₃F₈ gas in one eye. The mean change in BCVA was statistically significant, preoperative LogMAR BCVA was 2.05 ± 0.94 while the final follow-up postoperative LogMAR BCVA was 1.03 ± 0.61 (P < 0.001). Thirteen eyes (81.25%) had final BCVA ≥20/400.Conclusion:Microincision vitrectomy surgery can achieve excellent retinal reattachment rates in post-CMVR RRDs without significant intraoperative and postoperative complications. The visual outcome varies depending on the status of the optic disc and macula. Majority of the patients maintained functional vision.     

玻璃体积血合并视网膜裂孔或脱离的玻璃体切割手术疗效观察

目的:探讨玻璃体积血合并视网膜裂孔或脱离采用玻璃体切割手术治疗的疗效及必要性。 方法:对28例28眼玻璃体积血合并视网膜裂孔或脱离患者采用玻璃体切割手术治疗,观察治疗前后视力改变,并分析玻璃体积血与视网膜裂孔或脱离的关系。 结果:不同原因所导致的玻璃体积血28例中,7例术前B超未发现视网膜脱离,而在术中发现3例裂孔,4例伴裂孔周围浅脱;28例患者术后视力（包括术后随访最佳视力）均有不同程度的提高,数指/眼前以上者27例(96%),≥0.05者20例(71%),≥0.3者5例(18%),手术前后视力比较,具有统计学差异(P＜0.05)。 结论:玻璃体积血合并视网膜裂孔或脱离采用玻璃体切割手术治疗,安全有效,且能尽早发现视网膜裂孔及浅脱离,阻止视网膜脱离进一步扩大。     

孔源性视网膜脱离玻切术前超声生物显微镜检查结果分析

目的：分析因孔源性视网膜脱离需行玻璃体切除手术的患者术前超声生物显微镜( UBM )的检查结果,探讨术前超声生物显微镜检查的临床应用价值。
　　方法：选取我院2014-01/12因孔源性视网膜脱离行玻璃体切除手术的患者,记录其术前UBM检查的结果,并对阳性结果进行分析,探讨术前应用UBM检查的价值。
　　结果：接受玻璃体切除手术的孔源性视网膜脱离患者共356例357眼。术前均进行了 UBM 检查,其中122眼(34.17%)有阳性发现,56眼有睫状体脉络膜脱离,28眼有房角狭窄,6眼房角关闭,28眼发现有睫状体囊肿,4眼发现有虹膜囊肿,11眼发现有前部增殖性玻璃体视网膜病变,1眼发现有视网膜囊肿,其中12眼同时存在两种病变。本研究中 UBM 发现脉络膜脱离者56眼,阳性率15.7%;术前眼B超检查发现脉络膜脱离者25眼,阳性率7.0%,差异有统计学意义(χ2=13.382,P<0.05)。
　　结论：对于患孔源性视网膜脱离,因病情需行玻璃体切除术的患者,术前检查UBM能够全面了解前房角、睫状体和前部脉络膜视网膜的情况,对全面了解患者术前情况,估计手术难度,指导术中操作及术后随访有重要意义。     

Air tamponade and without heavy liquid usage in pars plana vitrectomy for rhegmatogenous retinal detachment repair

AIM: To report the results of rhegmatogenous retinal detachment (RRD) repair after pars plana vitrectomy (PPV) without operative use of heavy liquid, and utilizing air tamponade in selected cases. METHODS: RRD patients without severity of proliferative vitreoretinopathy C2 or more underwent PPV without operative use of heavy liquid, and utilizing air tamponade were consecutively enrolled. Alternative postoperative facedown position or lateral position was required for 3-5d. RESULTS: Totally 36 eyes of 36 patients (24 males, 66.7%) aged 53.8±10.9y underwent this modified surgery. The mean number of retinal break was 2.1±1.3. Most of the eyes (29, 80.6%) had retinal detachment involving more than one quadrant. Twenty-two (61.1%) eyes with cataract had combined phacoemulsification and intraocular lens implantation. The mean follow up time was 4.6±1.8mo. Two eyes with retinal redetachment underwent a second retinal repair surgery with silicone oil tamponade, yielding the primary reattachment rate to 94.4% (34/36). Six (16.7%) eyes had intraocular pressure higher than 25 mm Hg. The visual acuity (logMAR) improved from 0.98±0.74 preoperatively to 0.52±0.31 postoperatively (P<0.001). CONCLUSION: The success rate of this modified retinal repair surgery is comparable with traditional surgery. This technique can be considered for certain retinal detachment patients, since its apparent advantages included lower surgical complications, reduced surgery expenditure, shorter time for postoperative facedown position, and avoiding silicone oil removal surgery.     

Outcomes of 25-gauge pars plana vitrectomy with encircling scleral band for acute retinal necrosis-related rhegmatogenous retinal detachment

Purpose:The aim of this study was to evaluate the anatomic and functional outcomes of 25-gauge pars plana vitrectomy (25G PPV) with encircling scleral band (ESB) in patients with acute retinal necrosis (ARN)-related rhegmatogenous retinal detachment (RRD).Methods:Single-center retrospective interventional case series of patients who underwent 25G PPV with ESB for ARN-related RRD. Complete anatomic success was defined as the complete attachment of retina after primary PPV. Functional success was measured by the final best-corrected visual acuity (BCVA) ≥20/400. Intraoperative and postoperative complications were also noted.Results:14 eyes of 13 patients were included in the study. Six patients (46.1%) were immunocompromised. The mean follow-up was 23.64 ± 9.95 (range 6-42) months. Silicone oil was used as tamponade in 13 eyes and C₃F₈ gas in one eye. After the primary PPV, complete anatomical success was seen in all eyes (100%), however, one eye developed phthisis bulbi after silicone oil removal (SOR). Statistically significant improvement of BCVA was seen, from LogMAR 2.03 ± 0.29 preoperatively to LogMAR 1.57 ± 0.63 postoperatively (p-value 0.014). Six eyes (42.9%) had functional success. Nine eyes (64.3%) had improvement in vision while 4 eyes (28.6%) maintained preoperative vision. 10 eyes (71.4%) underwent cataract surgery, nine eyes (64.3%) underwent SOR while 2 eyes (14.3%) had epiretinal membrane (ERM) under oil during follow-up.Conclusion:25G PPV combines the advantages of minimally invasive vitrectomy surgery while offering improved anatomic outcomes in patients with ARN-related RRD. The functional outcome varies depending on the status of the optic disc and macula.     

23G玻璃体切割术联合巩膜外垫压治疗下方裂孔伴增殖型孔源性视网膜脱离的疗效和安全性

目的　对比分析23G玻璃体切割术（pars plana vitrectomy,PPV）和23G PPV联合巩膜外垫压（scleral buckling,SB）（SB-PPV）治疗下方裂孔伴增殖型孔源性视网膜脱离的手术疗效和安全性。方法　回顾性分析2013年1月至2016年12月我院收治的下方裂孔伴增殖型孔源性视网膜脱离患者70例（70眼）,其中39眼行SB-PPV为SB-PPV组,31眼行PPV为PPV组。观察两组患眼一次手术视网膜复位率,术中晶状体损伤和视网膜切除比例,术后最佳矫正视力和眼压等的差异。结果　SB-PPV组有36眼（92.3%）一次手术视网膜复位,PPV组为23眼（74.2%）,两组术后一次视网膜复位率相比差异有统计学意义（P=0.035）。SB-PPV组术中晶状体损伤1眼（2.6%）,PPV组术中晶状体损伤6眼（19.4%）,两组术中晶状体损伤率相比差异有统计学意义（P=0.021）。SB-PPV组视网膜切除2眼（5.1%）,PPV组视网膜切除10眼（32.3%）,两组视网膜切除眼数比例相比差异有统计学意义（P=0.008）。术后高眼压眼数比例以及术后1个月最佳矫正视力两组相比差异均无统计学意义（均为P>0.05）。结论　SB-PPV可提高下方裂孔伴增殖型孔源性视网膜脱离的一次手术视网膜复位率,且降低了术中晶状体损伤和视网膜切除的比例。     

Keratometric alterations following the 25‐gauge transconjunctival sutureless pars plana vitrectomy versus the conventional pars plana vitrectomy

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     

Pars plana vitrectomy in aphakic retinal detachments

Thirty-three cases of aphakic retinal detachment have been treated by pars plana vitrectomy and retinopexy. This procedure allowed us to lower the incidence of postoperative massive periretinal proliferation from 15,4%, in a series that was performed by a classical method, to 6% in the pars plana treated group.Presented at the XIIIth Meeting of the Jules Gonin Club, Córdoba, 29 March–2 April 1982.     

International multi-center study of iatrogenic retinal tears in pars plana vitrectomy

AIM: To study and compare the effect of different surgical settings on the development of iatrogenic retinal tears (IRT) in conventional (20-gauge) and microincisional vitrectomy. METHODS: An international retrospective comparative study of 394 patients who had simple vitrectomy at three tertiary centers. Surgeries were performed by four retina surgeons using different viewing systems. Two groups of eyes were compared: microincisional vitrectomy (327 eyes) and conventional (67 eyes) vitrectomy. An iatrogenic tear was defined as the occurrence of one or more peripheral retinal tears during surgery or at any visit in the first 6wk postoperatively. RESULTS: Mean age was 67±12y and 55% were female. Iatrogenic tears occurred in 11/394 (2.8%) of eyes. The rate of tears was similar among different surgeons and viewing systems (P=0.93 and P=0.76, respectively). Surgical indication, preexisting pseudophakia/aphakia, induction of posterior vitreous detachment (PVD) during surgery, and the use triamcinolone acetonide didn’t significantly affect the rate of tears (P>0.1 for all factors). A higher rate of tears was found in the conventional group compared to the microincisional group (respectively, 7.5%, 1.8%, P=0.02). CONCLUSION: The rate of IRT in vitrectomy is not significantly affected by surgical indication, preexisting PVD or pseudophakia, or use of triamcinolone or different viewing systems but is significantly higher in conventional vitrectomy. Microincisional platforms improve the safety of vitrectomy regardless of the viewing system used.     

Surgical outcomes of epiretinal membrane removal after successful pars plana vitrectomy for retinal diseases

PURPOSE: To evaluate visual outcomes after a removal of an epiretinal membrane (ERM) secondary to rhegmatogenous retinal detachment (RRD), proliferative vitreoretinopathy (PVR), or proliferative diabetic retinopathy (PDR). METHODS: The medical charts of 51 consecutive patients who underwent PPV to remove an ERM were reviewed in an institutional setting. The preoperative best-corrected visual acuity (BCVA) was evaluated to determine if it was a possible predictor of the postoperative BCVA. The visual outcomes in the RRD, PVR, and PDR groups were compared. Follow-up periods ranged from 13 to 90 months (mean, 40.9 months). RESULTS: After the ERM was removed, the postoperative BCVA improved significantly by 0.471 logarithm of the minimum angle of resolution units for all groups (t = 8.99; P < 0.001). The postoperative BCVA improved by two or more lines in 43 eyes (84.3%). Patient age and the preoperative BCVA significantly correlated with the visual improvement (P = 0.0082 and P = 0.035, respectively). CONCLUSION: The BCVA improves after removal of an ERM following PPV for eyes with RRD, PVR, or PDR. Patient age and preoperative BCVA correlated with the visual improvement after the ERM removal.     

双通道27G玻璃体切除术治疗硅油填充眼复发性视网膜脱离

目的:研究双通道27G玻璃体切除术在硅油填充状态下治疗复发性视网膜脱离的可行性及优缺点.方法:回顾性研究.7例硅油填充眼在随访时发现下方视网膜浅脱离.在硅油填充状态下行双通道27G玻璃体切除术.术中完成视网膜表面增殖膜剥离、视网膜下液抽吸,并在视网膜复位后行硅油下视网膜激光光凝术,根据患眼病情辅以巩膜外垫压或环扎.结果:术后所有患眼视网膜均成功复位,术中未发生严重并发症.所有患眼术后眼表反应轻且视力迅速恢复至术前水平.1眼在术后20d出现视网膜再脱离,经传统的硅油取出联合视网膜复位术成功复位视网膜.结论:双通道27G玻璃体切除术是一个治疗硅油填充眼早期视网膜再脱离的有效方法,可能具有更高的性价比.     

视网膜脱离患者玻璃体切除硅油填充术后3天高眼压发生率及危险因素

目的 探讨玻璃体切除及硅油填充术治疗视网膜脱离术后3天内眼压升高的发生比例及危险因素。设计 前瞻性病例系列。研究对象 2018年2-8月北京大学第三医院连续行玻璃体切除术联合硅油填充术治疗的视网膜脱离患者135例。方法  使用回弹式眼压计测量患者术后2、4、6~8小时、1、2、3天的眼压。任何时间眼压≥25 mmHg定义为眼压升高。生存期定义为从玻璃体切除术结束至第一次眼压≥25 mmHg发生时的时间间隔（小时）。采用Cox回归分析评估术后3天内发生高眼压的相关危险因素。采用Kaplan-Meier生存曲线可视化不同病因的视网膜脱离患者的生存概率。主要指标 高眼压发生率及危险因素。结果 135例患者中44例（32.6%）发生眼压升高,眼压升高在术后第1天发生率最高（20.2%）。Cox分析显示视网膜脱离的病因与眼压升高显著相关（P=0.006）,以原发性孔源性视网膜脱离作为对照,糖尿病性牵引性视网膜脱离和复发性视网膜脱离发生眼压升高的风险分别为3.5 倍（P=0.002,HR=3.41） 和3倍 （P=0.010,HR=2.91）。糖尿病牵引性视网膜脱离和复发性视网膜脱离的总生存率显著低于原发性视网膜脱离和外伤性视网膜脱离（P<0.05）。结论 视网膜脱离患者行玻璃体切除硅油填充术后3天内眼压升高比例约占1/3,主要发生在术后第1天。对于玻璃体切除硅油填充眼特别是糖尿病牵引性视网膜脱离及复发性视网膜脱离者,术后第1天复查仍有必要性。（眼科,2022,31：27-32）     

23G高速玻璃体切除手术治疗孔源性视网膜脱离的初步临床观察

目的:探讨23G高速玻璃体切除手术治疗孔源性视网膜脱离的临床效果。方法:前瞻性选择2009-03/2009-10一组合并较明显玻璃体混浊、玻璃体视网膜粘连牵拉或合并玻璃体积血的孔源性视网膜脱离病例共20例20眼,应用23G玻璃体切除手术联合膨胀气体全氟丙烷(C3F8)填充。统计分析视网膜解剖复位率、术后3mo时最佳矫正视力、术中、术后并发症、手术时间及术后眼部刺激征的严重程度,术后平均随访6mo。结果:所有20眼均一次手术后视网膜完全复位。未发生器械损伤晶状体或医源性视网膜裂孔等术中并发症。15眼黄斑已脱离眼的术前最佳矫正视力为0.02～0.5(log-MAR视力为0.3～2.0,平均1.187±0.616),术后3mo时最佳矫正视力为0.3～0.8(logMAR视力为0.1～0.52,平均0.276±0.114),差异具有统计学意义(t=5.756,P<0.01);5眼黄斑未脱离眼的术前最佳矫正视力为0.8～1.0(logMAR视力为0～0.52,平均0.218±0.276),术后3mo时最佳矫正视力为0.6～1.0(logMAR视力为0～0.52,平均0.312±0.285),差异没有统计学意义(t=-1.0,P=0.374)。手术后未发生低眼压、脉络膜脱离或眼内炎等切口相关并发症,无增生性玻璃体视网膜病变(PVR)发生。3眼术后第1d出现轻度晶状体后囊下羽毛状混浊,1wk内消退。至随访结束时,4眼(20%)晶状体核密度增加,其余病例无新生白内障或原白内障明显加重。5眼(25%)术后一过性眼压升高,眼压均<30mmHg,经局部使用1～2种降眼压滴眼液,3d内恢复正常,平均术后第7d眼压为14.6±3.4mmHg。结论:23G玻璃体切除手术治疗孔源性视网膜脱离安全有效,缝合手术切口可避免并发症,是值得推广的技术。     

Pars plana vitrectomy with pars plana tube implantation in eyes with intractable glaucoma

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     

玻璃体切割术联合内界膜剥离术治疗黄斑裂孔性视网膜脱落

目的：探究黄斑裂孔性视网膜脱落(macular hole retinal detachment,MHRD)患者应用玻璃体切割术(pars planavitrectomy,PPV)联合内界膜剥离术(internal limiting membrane peeling,ILMP)治疗的效果。

方法：选取我院在2013-12/2015-12期间收治的、符合纳入标准的MHRD患者78例83眼。根据患者是否应用PPV联合ILMP治疗,随机分为试验组(39例40眼)和对照组(39例43眼),对照组应用PPV治疗。观察两组治疗效果; 随访6mo后,比较两组患者视力改善情况以及手术前和手术后3、6mo的平均最佳矫正视力(best corrected visual acuity,BCVA); 并记录术后并发症发生情况。

结果：治疗效果：与对照组相比,试验组的视网膜复位率为92%(37/40),具有统计学差异(χ²=6.882,P=0.009); 视力改善情况：试验组的视力改善情况较对照组好,差异有统计学意义(χ²=14.216,P<0.001); 术后BCVA：试验组术后3、6mo的BCVA显著高于对照组,差异有统计学意义(t=7.119,P<0.001; t=10.573,P<0.001); 并发症：与对照组相比,试验组发生眼内压增高和视野缺损的情况较少,具有统计学差异(χ²=11.323,P=0.001; χ²=8.573, P=0.003); 晶状体混浊发生率无明显改变,但差异有统计学意义(χ²=1.835,P=0.176)。

结论：MHRD患者应用PPV联合ILMP术后恢复情况好,并发症发生率低,能更好地提高患者视网膜复位效果。     

玻璃体切割术后视网膜脱离分析

目的 探讨玻璃体切割术后视网膜脱离的原因、特点、治疗方法。方法 回顾分析我科近年发生的１６例玻璃体切割术后视网膜脱离的特征及治疗过程。结果 发生率为６％,其中增生性糖尿病视网膜病变４例,非糖尿病性玻璃体混浊１２例,７５％于术后１周内出现视网膜脱离,６９％由医源性裂孔引起。二次手术治疗包括玻璃体切割、经巩膜视网膜冷冻、巩膜扣带、长效气体及硅油充填术。最终８１％视网膜复位、视力提高。结论 玻璃体切割术中应从各个环节防止视网膜的损伤,术后视网膜脱离经二次手术多数可以复位。