At present, tamponade agent which being used in retinal surgery is mainly sterile air, gas and silicone oil. Sterile air is mostly used in the treatment of simple retinal detachment. Gas or silicone oil as tamponade is greatly applied for complicated retinal detachment. In recent years, with the application of micro-invasive vitrectomy under a wide-angle viewing system and perioperative anti-vascular endothelial growth factor drugs, application of intraocular filling materials also has changed. The application of silicone oil is significantly reduced. Percentage rate of gas as tamponade for retinal detachment is reduced. The application of sterile air as tamponade is rising. With selecting indication carefully and picking up the suitable air or gas, doctor will reduce the workload. It will also reduce the social burden and benefit patients.
Due to the high incidence and the earlier onset age, high myopia has become an important public health problem in China. Posterior scleral reinforcement surgery has been developed for over 60 years in order to control the rapid progression and complications of high myopia. By suturing a certain size of material on the surface of the posterior eyeball, thickness and elasticity modulus of the local sclera significantly increase. As the result, the rapid growth of the axial length and the chorioretinopathy could be alleviated. At present, controversies about its clinical efficacy and safety still exist, so posterior scleral reinforcement surgery has not been widely carried out all over the world. An in-depth analysis of the mechanism, surgical manipulations and materials, the clinical application status of posterior scleral reinforcement surgery on control of high myopia can provide a basis for further standardized application of this surgery
Recent years have witnessed tremendous progress in vitreoretinal surgery. The treatment of vitreoretinal diseases has increased enormously and its related indications expanded widely with the contribution of the emerging novel technologies, methods, equipment and new ideas. Attaching importance to minimally invasive surgery, application of auxiliary drugs, development of improved equipment and surgical technique were the main features. Further basic and clinical research is necessary to promote innovation and development of vitreoretinal surgery in China to keep pace with and surpass advanced technology.
PURPOSE: To investigate the activation and immune respones of lymphocytes in epiretinal membranes (ERMs)and subretinaI membranes (SRMs). METHODS: A panel of morioclonal antibodies against CD23 (activated B cell), CD25 (activated T cell), CD68(macrophages) and HLA-DR (human leukocyte antigen II antigen)were used for the study of 20 specimens of ERMs from 20 patients with proliferative vitreoretinopathy (PVR),traumatic PVR and secondary traction retinal detachment,and 2 SRMs from PVR and traumatic PVR, with positive and negative reaction specimens as controls. RESULTS:Four cases of ERMs were found to be CD23 and CD25 positive respectively,and one case of SRMs to be CD23 and CD25 positive respectively. All the specimens of ERMs and SRMs revealed CD68 and HLA-DR positive in this series. CONCLUSIONS :There might be an aberrant immunoreaction mediated by T and B cells in the ERMs and the SRMs,and they might play an important role in the patbogenesis of PVR,traumatic PVR and secondary traction retinal detachments. （Chin J Ocul Fundus Dis,1996,12: 147-150）
PURPOSE:To investigate the cause and treatment of iatrogenic retinal breaks(lRB)in microvitreoretinal surgery. METHODS:The causes and treatments of 40 iatrogenie retinal breaks of 24 cases in micro-vitreoretinal surgery from July1994 to March 1996 in our department were analyzed retrospectively. RESULTS:40 IRB were found in 24 eyes,among them there were 16 eyes of proliferative vitreoretinopathy(PVR),5 eyes of taumatic PVR and 3 eyes of tractional retinal detachment, The treatments of IRB included scleral cryotherapy ,silicone band buckling,endodiathermy,intraocular tamponade and postoperative argon laser. The IRB of inferior retina and posterior Io scleral buckling acounded for 70% and 92% respectively. The total retinal and macular attachment were 17 eyes and the visual acuity of 19 eyes improved to 0.02 or better during the mean follow up periods of 5 months. CONCLUSION:The IRB is a severe complication in micro-vitrecretinal surgery and has to be obliterated either intraoperatively or postoperatively. （Chin J Ocul Fundus Dis,1997,13: 19-21 ）