Effectivity of V4 and v4C implantable contact lenses in the treatment of complications after vitreoretinal surgery: A comparative study

Author(s):  
Jian-Hai Bai ◽  
Xiao-Xiao Ruan ◽  
Yu Zhang ◽  
Xiao-Min Ding ◽  
Xing-Zhi Yang ◽  
...  

Abstract Objective This study aims to analyze and compare the postoperative ocular parameters of two different types of implantable contact lenses (ICLs) (for retinal detachment) to provide a clinical reference for vitreoretinal surgery. Methods From March 2016 to March 2021, 24 patients (24 eyes) with rhegmatogenous retinal detachment following ICL implantation at the Eye Center of Taizhou Central Hospital were recruited. Based on the different types of ICL, they were divided into the V4 type ICL implantation group (V4 type group) and v4C type ICL implantation group (v4C type group), with 12 cases (12 eyes) in each group. Both groups were treated with pars plana vitrectomy; differences in postoperative ocular complications between the two groups were compared. Results The postoperative uncorrected and best corrected visual acuity for both groups were significantly higher than those preoperatively (P < 0.001); the same applied to the intraocular pressures (P < 0.05). Fluctuation in intraocular pressure was higher in the V4 group than in the v4C group (P < 0.05). The arch height, measured using anterior segment optical coherence tomography on the first day after operation, was lower in the V4 group than in the v4C group (P < 0.05). There was also no significant difference between the two groups before and after the operation (P > 0.05). Conclusion For patients with V4 type ICL implantation and mesh removal, stimulation of the ciliary body and the risk factors for pupil block caused by ciliary muscle spasm should be reduced as much as possible during pars plana vitrectomy. If postoperative complications such as decreased arch height and increased intraocular pressure occur, the application of compound tropicamide eye drops is an effective method to activate the pupil.

Despite improvements in vitreoretinal surgery techniques, rhegmatogenous retinal detachment is still one of the major causes of visual loss in the world. Pneumatic retinopexy (PR), scleral buckle, and pars plana vitrectomy (PPV) are the modalities that are used in the treatment of retinal detachment. Intraocular gases, which are frequently used in PR and PPV, are indispensable molecules due to their tamponade effects. In order to get favorable postoperative outcomes, the proper type of gas selection should be made by considering the properties of the gases, indications, potential complications, and findings of the patients together.


2021 ◽  
Vol 49 (8) ◽  
pp. 030006052110327
Author(s):  
Junhui Shen ◽  
Zheng Zhang ◽  
Dian Ye ◽  
Zuohui Wen ◽  
Xupeng Shu ◽  
...  

Sympathetic ophthalmia (SO) is a panuveitis that usually occurs after trauma to one eye. We describe two cases of SO occurring after 23-gauge vitrectomy. Case 1 involved a 66-year-old woman who underwent pars plana vitrectomy (PPV) for a rhegmatogenous retinal detachment. Two months later, she presented with decreased visual acuity (VA) and bilateral uveitis. Case 2 involved a 43-year-old woman who underwent a second PPV for recurrent retinal detachment. Two months later, she presented with bilateral panuveitis. Both patients were diagnosed with SO and were treated with methylprednisolone and cyclosporine. The first patient was further treated with a dexamethasone intravitreal implant (Ozurdex®) owing to the side effects of methylprednisolone. The VA and symptoms improved significantly after treatment in both patients. Bilateral granulomatous panuveitis following PPV should alert surgeons to consider SO. Appropriate interventions for SO can produce positive outcomes.


2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Selcuk Sizmaz ◽  
Ebru Esen ◽  
Puren Isik ◽  
Burcu Cam ◽  
Nihal Demircan

Background. With the advances in surgical tools, simultaneous removal of cataract associated with vitreoretinal disorders is gaining popularity. This combined surgery offers several advantages besides limitations. The aim of this study is to assess the outcome and complications of phacoemulsification combined with pars plana vitrectomy (PPV). Patients and Methods. In this retrospective review, medical charts of patients undergoing phacovitrectomy for coexisting cataract and various vitreoretinal disorders were analyzed. Patient demographics, retinal diagnosis, visual acuities (VA) in logMAR, intraocular pressure (IOP), intraoperative and postoperative complications were assessed. Clear corneal phacoemulsification and 23-gauge transconjunctival PPV were administered in all cases. Results. Eighty-four eyes of 64 (76.2%) males and 20 (23.8%) females were enrolled. The average age of patients was 59.5 ± 13.8 (18–81). The average period of follow-up was 7.2 ± 7.5 months (1–36). The vitreoretinal diagnoses were as follows: 28 (33.3%) rhegmatogenous retinal detachment, 23 (27.4%) vitreous hemorrhage, 12 (14.3%) intraocular foreign body, 12 (14.3%) epiretinal membrane, 4 (4.8%) macular hole, 4 (4.8%) tractional retinal detachment, and 1 (1.2%) vitreomacular traction. The most common intraoperative complications were miosis and rupture of the posterior capsule (92.9% and 8.3%, respectively). In 8 (9.5%) cases, there was fibrin in the anterior chamber. Posterior synechia developed in 7 (8.3%) of cases. No severe increase in intraocular pressure was evident. Conclusion. Phacoemulsification combined with PPV is a safe and efficient way of management in cases where cataract coexists with vitreoretinal pathologies.


2021 ◽  
Author(s):  
Xiaoyan Zhang ◽  
Xiaofeng Hao ◽  
Like Xie

Abstract Background: We investigated the incidence of and risk factors for intraocular pressure elevation within 6 days following pars plana vitrectomy with silicone oil injection for rhegmatogenous retinal detachment. Methods: We reviewed the records of 55 patients in whom pars plana vitrectomy with silicone oil injection was performed. The intraocular pressure was evaluated before surgery and 1 day, 3 days, and 6 days post-operatively. Results: Intraocular pressure elevation was found in 49% of eyes within 6 days after surgery. A long duration of rhegmatogenous retinal detachment was significantly associated with intraocular pressure elevation on day 1 after surgery. Presence of diabetes was significantly associated with intraocular pressure elevation at 3 days post-operation. Intraocular pressure elevation may occur 6 days following topical steroid use. Conclusions: Intraocular pressure should be monitored regularly in the early post-operative period after pars plana vitrectomy with silicone oil injection for rhegmatogenous retinal detachment, especially in patients with prolonged detachment and diabetic history.


2011 ◽  
Vol 18 (04) ◽  
pp. 715-721
Author(s):  
FAHEEM AHMAD ◽  
SYED ALI HAIDER

Introduction: The increasing popularity of phacoemulsificalion in restoring good visual acuity has also led to an increase in the incidence of its complications like nucleus drop during the procedure. Proper management of such patients not only reduces intravitreal lens fragments related complications but also significantly improves the visual acuity. Objectives: To evaluate the clinical features of the eye with retained Intravitreal lens fragments after the phacoemulsification surgery. We also aimed to investigate the incidence of cystoid macular edema, retinal detachment, suprachoridal hemorrhage and any other complication in patients after pars plana vitrectomy for retained intravitreal lens fragments. Setting: This study was carried out at the department of ophthalmology, Lahore General Hospital, Lahore. Period: The duration of study was one year 17-05-2004 to 28-04-2005. Study Design: Descriptive prospective. Material & Methods: The reported frequency of dislocated lens material at 0.3% is quiet low. Despite LGH being a referral center for retinal diseases, dropped nuclei and nuclear fragments constitute a very small fraction of the referred cases. Therefore the study was limited to 15 cases only so that it could be completed within specified period. Results: 15 eyes having retained lens matter after phacoemulsification surgery were included. Aphakia was present in 10(66.75%) patients. 5 (33.4%) patients were pseudophakic. Raised intraocular pressure was found in 11 (73.4%) patients, cornea! edema in 7 (46.7%), uveitis in 6 (40%) patients. Two (13.4%) patients had retinal detachment at presentation. The range of visual acuity way perception and projection of light to counting fingers in 9 eyes (60%), 2/60-6/60 in 5 eyes (33.4%). 6/24 in 1 (6.64%) eye preoperatively. After vitrectomy, range of visual acuity was 6/9 to 6/18 in 9 patients (60%) and 6/24-6/60 in 6 patients (40%). The comparison of pre-operative visual acuity and that of last follow-up showed p<0.01 (statistically highly significant). Intraocular pressure was raised in only 2 patients (13.3%). No patient developed retinal detachment. Cystoid macular edema was found in only 2 patients (13.4%).No patient developed significant intraocular inflammation after vitrectomy. Conclusions: Patients having retained intravitreal lens fragments presented with raised intraocular pressure, reduced visual acuity, uveitis and retinal detachment. In such patients combined pars plana vitrectomy and secondary intraocular lens implantation reduced the risk of postoperative complications including secondary glaucoma, uveilis and helped in restoration of useful visual acuity. 


Diagnostics ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1157
Author(s):  
María D. Díaz-Barreda ◽  
Isabel Bartolomé-Sesé ◽  
Ana Boned-Murillo ◽  
Antonio Ferreras ◽  
Elvira Orduna-Hospital ◽  
...  

Background: We study the retinal function measured by macular integrity assessment microperimetry (MAIA) and structural changes assessed by scanning swept source optical coherence tomography (SS-OCT) between healthy individuals and patients undergoing pars plana vitrectomy (PPV) after rhegmatogenous retinal detachment (RRD). Methods: Cross-sectional study. Early Treatment Diabetic Retinopathy Study (ETDRS) grids were measured by SS-OCT and compared with the MAIA parameters. Results: Thirty-eight eyes with RRD (19 macula-on and 19 macula-off) were compared with 113 healthy eyes. The retinal sensitivity and average total threshold were reduced in all sectors in the RRD group; macular integrity index was increased. Macular thicknesses in total retina and ganglion cell layer (GCL)++ protocols were higher in the RRD group in nasal outer (NO) and central (C) sectors and only in C sector for GCL+ protocol. Thicknesses were lower in total retina, GCL++ protocols in the temporal outer (TO) sector and in the GCL+ protocol in NO sector. Best-corrected visual acuity (BCVA) correlated moderately with retinal sensitivity in all sectors and in just several sectors with time between the date of surgery and the test. The central nasal (CN) sector thickness and the average total threshold were higher in the macula-on subgroup. Conclusions: RRD and subsequent surgery results in functional and structural changes, especially in individuals with macular detachment.


2011 ◽  
Vol 90 (8) ◽  
pp. 744-749 ◽  
Author(s):  
Carsten Framme ◽  
Susanne Klotz ◽  
Ute E.K. Wolf-Schnurrbusch ◽  
Peter Wiedemann ◽  
Sebastian Wolf

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