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Vitreoretinal
Published in Mostafa Khalil, Omar Kouli, The Duke Elder Exam of Ophthalmology, 2019
Chronic RRD (Figure 15.5) Retinal thinning.Demarcation lines.Intraretinal cysts.Proliferative vitreoretinopathy.
Management of traumatic lens subluxation and dislocation
Published in A Peyman MD Gholam, A Meffert MD Stephen, D Conway MD FACS Mandi, Chiasson Trisha, Vitreoretinal Surgical Techniques, 2019
Indications for removal of dislocated lenses include cystoid macular edema, excessive mobility of the dislocated lens (which can result in retinal injury), and obscuration of the optical axis. Associated complications of retinal detachment, proliferative vitreoretinopathy, and recurrent vitreous hemorrhage necessitate removal of the lens.
How to master MCQs
Published in Chung Nen Chua, Li Wern Voon, Siddhartha Goel, Ophthalmology Fact Fixer, 2017
Proliferative vitreoretinopathy is thought to be caused by the release of retinal pigment epithelium onto the retina. The incidence of PVR is increased in large or multiple retinal breaks, cryotherapy, vitreous haemorrhages and vitrectomy surgery. Pneumatic retinopexy and scleral buckling do not increase PVR.
Autologous retinal graft for the management of large macular holes associated with retinal detachment
Published in Libyan Journal of Medicine, 2023
Hsouna Zgolli, Hamad K H Elzarrug, Chiraz Abdelhedi, Sonya Mabrouk, Olfa Fekih, Ines Malek, Imen Zghal, Leila Nacef
A complete and durable re-attachment of the retina was observed in all patients at 3 months post-operatively. No patient developed post-operative proliferative vitreo-retinopathy. At 3 months after surgery, we observed macular hole closure with restoration of foveal continuity in 8 patients (73%). The retinal patch detached after 7 days in one patient and 45 days in another. In one patient, the retinal patch did not cover the entire macular hole resulting in a decrease in hole size without restoration of foveal continuity. At 3-month follow-up after surgery, the mean BCVA was 0.89 ± 0.16 LogMAR. The improvement of the visual acuity was statistically significant (p = 0,014) (Table I). The retinal patch was well individualized on the control SD-OCT (Figures 2, 3, 4). No postoperative adverse events were registered during the follow-ups.
Effect of the Presence of Silicone Oil in the Anterior Chamber After Complicated Retinal Detachment Surgery on Corneal Morphology by In Vivo Confocal Microscopy
Published in Current Eye Research, 2023
Murat Kasikci, Sabahattin Sul, Huseyin Cem Simsek, Aylin Karalezli, Merve Simsek, Safak Korkmaz
The study was carried out between December 2020 and May 2022 at Mugla Sitki Kocman University Research and Training Hospital (Turkey). Two groups of patients were considered: Group 1 (or silicon oil) and Group 2 (or control groups). Group 1 consisted of 32 patients (18 men and 14 women) with an average age of 65 ± 12 years. Group 2 included 31 patients (17 men and 14 women with a mean age of 61 ± 11 years) who had vitrectomy with silicone oil tamponade owing to retinal detachment but no clinical silicone oil in the anterior chamber. Only three of the 31 patients had proliferative vitreoretinopathy. The duration between the last vitrectomy and the confocal microscopy evaluation in this group was between 3 and 6 months. Both in Group 1 and Group 2, the vitreoretinal surgery was performed only by the surgeon. All vitreoretinal surgeries were performed by a single physician (SS). The subjects were all chosen from pseudophakic cases. After complicated vitreoretinal surgery by an expert surgeon (SS), all patients received intravitreal silicone oil injections. All patients were selected from cases of retinal detachment treated with vitrectomy and silicone oil tamponade. 14 patients in the Group 1 also had proliferative vitreoretinopathy. Measurements were taken in the 4th month after the surgery using IVLSCM.
Assessment of the Retinal Toxicity and Sealing Strength of Tissue Adhesives
Published in Current Eye Research, 2022
Anna Sharabura, John Chancellor, M. Zia Siddiqui, David Henry, Ahmed B. Sallam
There are several reasons for a failed RD repair after PPV: lack of adequate tamponade, development of new retinal tears, or development of proliferative vitreoretinopathy (PVR). PVR is the most common cause of surgery failure, accounting for approximately 75% of failures.11 It can be difficult to achieve tamponade with intraocular gas or silicone for inferior retinal breaks.12 Additionally, many patients may not be able to position their heads for ideal tamponade due to physical, mental, or occupational limitations. Proliferative vitreoretinopathy is precipitated by exposure of glial cells and RPE cells to the vitreous cavity from the site of the retinal break.13 Even with tamponade use, the inciting retinal breaks are not immediately sealed, and migration of these cells is still possible. Having an immediate closure of the retinal break during PPV, may thus decrease the need for a longer-acting tamponade and limit the development of PVR postoperatively.