Objective To investigate the characteristics and risk factors of optic nerve atrophy in eyes with complicated retinal detachment after silicone oil tamponade during the procedure of vitreoretinal operation. Methods The clinical data of 97 patients with complicated retinal detachment who had optic nerve atrophy after silicone oil tamponade during the procedure of vitreoretinal operation were an alyzed retrospectively. Logistic regression analysis by SPSS statistical software was used to analyze the factors like age, disease history, primary diseases, preoperative ocular condition, complications in and after the operation, the time taking out the silicone oil, and emulsification of the silicone oil, and Ple;0.05 was considered to be the symbol of significant difference. Results All of the affected eyes had optic discs with clear border, including paler optic disc in 65 eyes, pale one in 21 eyes, and paler optic disc with enlargement of the cup/disc (ge; 0.6) in 11 eyes. The result of logistic regression analysis showed that the intraocular pressure (P=0.022) and the visual acuity (P=0.001) during the silicone oil removal were in the equation. Conclusion The risk factor of optic nerve atrophy is the chronic increase of intraocular pressure after silicone oil tamponade. (Chin J Ocul Fundus Dis, 2006, 22: 305-307)
Objective To evaluate glaucoma and anterior chamber angle changes after intravitreal silicone oil injection(SOI). Methods The intraocular pressure(IOP) and anterior chamber angles of 34 e yes(33 patients)undergone pars plana vitrectomy and SOI were observed. Results Glaucoma occurred in 9 eyes(26%),in which silicone oil glaucoma(SOG) accounted for 77%(7/9).The changes of the superior part of anterior chamber angle were peripheral anterior synechiae in 11 eye(32%) and SO emulsification droplets in 22 eyes(64%) in 1～4.5 months after surgeries.Glaucoma occurred in 6 eyes of 7 eyes undergone peripheral iridectomy at the inferio r part of the iris after the closure of iridectomy holes (plt;0.05). Conclusion High incidence of glaucoma was found in this series of patients after intravitreal silicone oil injection,and the main causes of SOG were closure of the inferior iridecomy hole and silicone emulsification. (Chin J Ocul Fundus Dis, 2001,17:105-107)
Objective To observe the therapeutic effect of combined surgery of anterior and posterior segment and silicon oil tamponade on macular hole retinal detachment in eyes with high myopia.Methods The clinical data of 48 high myopia patients (48 eyes) with macular hole retinal detachment were retrospectively analyzed. Retinal detachment was mainly at the posterior pole; macular hole was confirmed by noncontact Hruby lens and optical coherence tomography (OCT). Phacoemulsification combined with pars plana vitrectomy and silicon oil tamponade were performed to all patients, of which 41 had undergone internal limiting membrane peeling, and 23 had intraocular lens implanting. The oil had been removed 3.5-48.0 months after the first surgery and OCT had been performed before the removal. The followup period after the removal of the silicon oil was more than 1 year.Results The edge of the macular hole could not be seen under the noncontact Hruby lens 1 week after the surgery in all but 5 patients, and the visual acuity improved. The silicon oil had been removed in all of the 48 patients; the OCT scan before the removal showed that the closed macular holes can be in U shape (8 eyes), V shape (6 eyes) or W shape (23 eyes). About 1338 months after the oil removal, retinal detachment recurred in 2 patients with the Wshaped holes. At the end of the followup period, 16 patients (33.3%) had U or Vshaped macular holes, and 32 patients (66.7%) had Wshaped macular holes. The rate of retinal reattachment was 100%.Conclusion Combined surgery of anterior and posterior segment and silicon oil tamponade is effective on macular hole retinal detachment in eyes with high myopia.
Objective To observe the effects of vitrectomy combined with endotamponade on severe endophthalmitis. Methods The clinical data of 44 patients (44 eyes) of posttraumatic and 22 patients (22 eyes) of postoperative severe endophthalmitis were retrospectively analyzed. All patients were treated by vitrectomy and endotamponade. Intraocular foreign body removal (19 eyes), lens extraction (25 eyes), intraocular lens removal (six eyes) and scleral buckling (16 eyes) were performed. Tamponade with silicone oil (52 eyes) or C3F8 gas (14 eyes) was also performed. Postoperative follow-up ranged from two to 25 months, with the mean of 7-9 months. The visual acuity（VA）and intraocular pressure before and after surgery were comparatively analyzed. Results Inflammation of all the patients were controlled，the effective rate was 5.10%. There was no recurrence and retinal detachment. Among the 66 eyes, postoperative VA of 58 eyes (87.90%) increased,five eyes（7.60%）didn't change and three eyes（4.55%）decreased, the difference was statistically significant（chi;2=45.27，P＜0.05）. The postoperative intraocular pressure was higher than that before surgery，the difference was statistically significant（t=-3.23，P＜0.05）. Conclusions Vitrectomy combined with endotamponade is an effective way to cure severe endophthalmitis. It can improve the visual acuity and intraocular pressure.
Objective To invesligate the treatment of retinal de tachment(RD) after silicone oil tamponades(SOT)． Methods The records of a consecutive series of 32 eyes with redetachment of retina after SOT surgery between 1998 to 2000 were reviewed retrospectively． The surgical techniques used for these cases included remove of silicon oil,peeling of preretinal membrane, retinotomy, endolaser photocoagutation, secondary vitrectomy and C3 F8 tamponades． Results In 28 of 32 eyes the retina was reattached (87．6%)． The postoperative visual acuity was improved in 12 eyes, redused in 4 eyes and remained no change in 16 eyes． The postop erative complications in 6 eyes included secondary glaucoma(3 eyes), hypotony (1 eye) and hyphema (2 eyes)． Conclusion The techniques of preretinal membrane peeling, retinotomy, endophotocoagulation and C3 F8 tamponades can be effectively used in combination to treat the redetachment of retina after the silicone oil tamponades surgery． (Chin J Ocul Fundus Dis,2001,17:214-215)