Silicone oil removal: Results, risks and complications (original) (raw)
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Bali Journal of Ophthalmology, 2017
Objective: To observe the patient characteristics and complications after silicone oil removal, in vitrectomized patients with SO as an internal tamponade. Method: This study was designed for observational-descriptive of medical records vitrectomized patients with SO tamponade and subsequent removal in April 2011 to March 2012. Cases were classified into 2 groups between different viscosities (SO 1300 cSt and 5500 cSt). Furthermore, each group was then evaluated by anatomic improvement (attachment or redetachment) and complication rates after SO removal (cataract formation, glaucoma, SO emulsification). Result: The indications for the use of silicone oil were rhegmatogenous retinal detachment in 47 eyes (85.5%), 4 eyes (7.3%) were associated with proliferative vitreoretinopathy (PVR), 4 eyes (7.3%) had vitreous hemorrhage caused by AMD (1 eye) and 3 eyes had proliferative diabetic retinopathy with tractional retinal detachment. Silicone oil removal was done on average 118.87 days for SO 5500 cSt (range from 28 until 360 days) and average 116.25 days for SO 1300 cSt (range from 81 days until 185 days). After silicone oil removal, the retina remains attached in 50 (90.09%) of the eyes, 34% had visual acuity > 6/120 and 7.27 % had Intra Ocular Pressure (IOP) > 21 mmHg. Comparing 1000 cSt and 5000 cSt silicone oil-filled eyes, redetachment occurred more frequently in the latter group especially in cases with associated PVR. Conclusion: Rates of anatomical success from this study was 90.09%, but redetachment was found in 9.09% eyes. Several complications were found after SO removal such as cataract formation, glaucoma and SO emulsification.
Intraocular silicone oil removal: timing, outcome, and silicone oil complications encountered
Malaysian Journal of Ophthalmology, 2019
Introduction: Silicone oil is the preferred tamponade agent used in pars-plana vitrectomy for retinal detachment when a long duration of endotamponade is intended. Due to its possible long-term complications, removal of silicone oil (ROO) is recommended. Purpose: This study is done to evaluate the mean duration and complications of silicone oil tamponade, and the anatomical and visual outcomes after silicone oil removal. Study design: Retrospective study. Materials and methods: Retrospective review was done on 55 eyes of 55 patients, in which ROO was carried out at Hospital Sultanah Bahiyah in 2016 with a minimum six months follow-up postoperatively. Results: The duration of silicone oil tamponade in these eyes ranged from 1.0 to 55.5 months, with mean duration of 10.8 months (SD 7.74). Common complications of silicone oil tamponade observed were cataract in 30 eyes (54.5%), followed by secondary high intraocular pressure in 6 eyes (10.9%), and band keratopathy in 3 eyes (5.5%). Six...
International journal of retina and vitreous, 2017
To report the incidence and clinical features of patients that experienced un-explained visual loss following silicone oil (SO) removal. Multicenter retrospective study of patients that underwent SO removal during 2000-2012. Visual loss of ≥2 lines was considered significant. A total of 324 eyes of 324 patients underwent SO removal during the study period. Forty two (13%) eyes suffered a significant visual loss following SO removal. Twenty three (7.1%) of these eyes lost vision secondary to known causes. In the remaining 19 (5.9%) eyes, the loss of vision was not explained by any other pathology. Eleven of these 19 patients (57.9%) were male. The mean age of this group was 49.2 ± 16.4 years. Eyes that had an un-explained visual loss had a mean IOP while the eye was filled with SO of 19.6 ± 6.9 mm Hg. The length of time that the eye was filled with SO was 14.8 ± 4.4 months. In comparison, eyes that did not experience visual loss had a mean IOP of 14 ± 7.3 mm Hg (p < 0.0002) and a ...
Vision loss associated with the use and removal of intraocular silicone oil
Clinical Ophthalmology, 2009
To describe vision loss associated with the use or removal of silicone oil retinal tamponade. Methods: Records were reviewed of all patients with a decrease in visual acuity of at least 3 Snellen lines from best acuity with 5000 centistoke silicone oil in place or after removal of silicone oil at a single retina-only practice between 1996 and 2006. Results: Nine patients (6 men, 3 women) with a mean age of 48 years (range, 16-61) met study inclusion criteria. Seven patients lost at least three Snellen lines of vision while the silicone oil was in place. Four patients had late modest improvements in acuity when compared to their fi nal recorded Snellen vision before silicone oil removal, however no patients exhibited visual improvement when comparing their fi nal recorded visual acuities after oil removal with best recorded acuities under oil tamponade. Loss of the foveal depression was a consistent feature on optical coherence tomography. Conclusions: Vision loss is a possible complication of silicone oil use and removal. Late visual improvement may occur in some patients. Further research is warranted to elucidate the mechanism(s) of vision loss associated with the use or removal of silicone oil.
Pakistan Journal of Medical and Health Sciences
Objectives: The objective of the study is to assess the retinal redetachment after early and late removal of silicone oil. Place and Duration of Study: Department of ophthalmology eye unit 3, KEMU /Mayo hospital, Lahore from February 2021 to July 2021 . Study: Quasi experimental trial. Patients and Methods: Time of silicone oil removal of first group (29 patients) at 6 weeks and second group (29 patients) at 12 weeks post-operatively. Presence of 360 barrage laser. The two groups were compared as to the condition of the eye at the time of SOR at 1st day 1st week, 1st months.3rd month following SOR. Inclusion Criteria PPV for rhegemantogenous RD with all types of breaks with silicon oil tamponade, both gender 360 barrage laser. Exclusion criteria bands keratopathy grade c PVR, presence of cataract, GRT, only eye Results: The risk of retinal re-detachment was similar in both groups. Conclusion: The danger of re-detachment was not increased by early removal of silicone oil after six we...
Outcomes of silicone oil removal
2013
OBJECTIVE To evaluate the outcome and complications of removal of silicone oil after pars plana vitrectomy. STUDY DESIGN Case series. PLACE AND DURATION OF STUDY Layton Rahmatullah Benevolent Trust (L.R.B.T), Free Base Eye Hospital, Karachi, from February 2008 to January 2011. METHODOLOGY Ninety five eyes of 95 patients with a history of undergoing three-port pars plana vitrectomy were included in this study that subsequently underwent removal of silicone oil. Silicone oil was removed after ophthalmoscopically determining retina attachment or when the duration of silicone oil tamponade was atleast of 6 months. Patients were followed for a period of 12 months. RESULTS Retinal re-detachment was seen in 19 (20%) out of 95 eyes, vitreous haemorrhage in 2 (2.1%) out of 95 eyes, corneal decompensation in 6 (6.3%) out of 95 eyes, hypotony in 7 (7.3%) out of 95 eyes, phthisis bulbi in 2 (2.1%) out of 95 eyes and lens opacification in 9 (9.4%) out of 95 eyes. CONCLUSION In this study, silico...
Acute corneal decompensation after silicone oil removal
International Ophthalmology
To assess acute corneal decompensation after silicone oil removal in some aphakic eyes with clear corneas whose anterior chambers were completely filled with silicone oil for a considerable period of time. Eight eyes of 8 patients who underwent vitrectomy and intraocular silicone oil injection were studied. All the eyes were aphakic and anterior chambers were completely filled with silicone oil. In all eyes, corneas were clear and no corneal finding indicating keratopathy was detected by slit-lamp microscopy before silicone oil removal. The mean silicone oil removal time was 4 months (range 2-7 months). A specular microscope was used for the evaluation of corneal endothelial changes and corneal pachometry was performed to observe corneal changes before and after the silicone oil removal in 5 eyes besides slit-lamp microscopy. The follow up period after silicone oil removal was 2-12 months (mean 6 months). In all eyes severe corneal stromal edema and clouding was detected in the firs...
Journal of Pakistan Medical Association, 2019
Silicone oil (SO) has a well-established role in vitreoretinal surgery and is successfully used in the management of complicated retinal detachments (RD). 1,2 In order to minimise complications associated with long-term use, SO is removed once retinal status appears stable. 3 Removal of silicone oil (ROSO) is associated with serious complications that include re-detachment of retina, hypotony, expulsive haemorrhage, vitreous haemorrhage and unexplained visual loss. 4,5 Residual vitreo-retinal traction, especially at vitreous base and re-proliferations, are most likely reasons for retinal re-detachment. It is most commonly seen during the first 10 days post-ROSO, and is reported in 2% to 40% cases. 6-11 ROSO through pars plana by active method has been one of the commonest methods performed. Trans conjunctival sutureless vitrectomy (TCSV) is a safe and effective technique, which makes sutureless active and passive three-port ROSO possible, and obviates the need for conjunctival peritomy and stitching of scleral ports. 12,13 The current study was planned to review the frequency and timing of the re-detachment of retina post-ROSO and to discuss the risk factors for this still unresolved complication in vitreoretinal surgery. Patients and Methods The retrospective study was conducted at one publicsector and one private-sector hospital in Karachi, and comprised data related to patients who underwent pars plana vitrectomy with silicone oil endotamponade for complicated retinal detachment and subsequent ROSO between 1996 and 2015. These surgeries were performed by a single surgeon at the Department of Ophthalmology,
International Ophthalmology, 2016
The purpose of this study was to investigate the incidence and risk factors associated with retinal redetachment after silicone oil (SO) removal in the African population. A retrospective cohort study was performed on patients undergoing SO removal over a period of 4 years. The risk factors assessed were (1) characteristics of the retinal detachments including type of retinal detachment, type, number and location of the retinal tears, and proliferative vitreoretinopathy (PVR) score, and (2) surgical factors including type of silicone oil used, use of laser prior to SO removal, and location of the laser (360°or around the tear only). SO was removed either through a pars plana approach or transpupillary approach and anterior limbal incision. Ninety-nine eyes met the inclusion criteria during the study period. Twelve patients (12 %) had retinal redetachment after SO removal. Factors associated with redetachment were a preexisting macular hole, PVR grade B or worse, and no intraoperative endolaser photocoagulation. The incidence of redetachment in African population is similar to that reported from developed countries and other advanced vitreoretinal centers. Redetachment occurred at higher rates in patients with preexisting macular holes and tears who did not receive intraoperative endolaser photocoagulation and patients with a severe grade of PVR.
Silicone oil removal: post-operative complications
Eye, 2019
Purpose To describe the characteristics, outcomes and complications of eyes after silicone oil removal. Methods Retrospective case series of eyes that underwent oil removal between 2012 and 2016 at The Institute of Ophthalmology and Visual Science. Visual acuity (VA), intraocular pressure (IOP) and rates of retinal re-detachment, hypotony, ocular hypertension, corneal decompensation, cystoid macular edema (CME) and cataract progression were evaluated. Results Totally, 101 eyes of 99 patients (65% male, average age 47.2 years) were identified. Oil tamponade had been used for retinal detachment (RD) repair in all eyes; 15 eyes had also undergone an open globe repair previously. The most common vitreous substitutes used after oil removal were balanced salt solution (BSS) and air in 90% of eyes. The average time of oil tamponade before removal was 9.46 months. The average logMAR VA before oil removal was 1.7 which improved to an average of 1.4 post-operatively. The average IOP pre-operatively was 16.1 mm Hg, which decreased to an average of 14.8 mm Hg post-operatively. Complications after oil removal, included retinal re-detachment (6.9%), hypotony (7.9%), ocular hypertension (12.9%), corneal decompensation (9.9%), CME (2%) and cataract progression (68%). Conclusion This study showed an overall improvement in VA and decrease in IOP after oil removal. Cataract progression was the most common complication.