Person: YALÇINBAYIR, ÖZGÜR
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YALÇINBAYIR
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ÖZGÜR
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Publication Efficacy of dexamethasone implants in uveitic macular edema in cases with behcet disease(Karger, 2019-01-01) Yalçınbayır, Özgür; Çalışkan, Enver; Gündüz, Gamze Uçan; Gelişken, Öner; Kaderli, Berkant; Yücel, Ahmet Ali; YALÇINBAYIR, ÖZGÜR; Çalışkan, Enver; UÇAN GÜNDÜZ, GAMZE; YÜCEL, AHMET ALİ; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göz Hastalıkları Anabilim Dalı; JAC-9459-2023; EQX-5743-2022; AAH-6661-2021; JYV-1141-2024Purpose: Investigation of the efficacy of intravitreal dexamethasone implants (0.7 mg) in patients with Behcet disease (BD) who had cystoid macular edema (CME) despite immunomodulatory treatment. Materials and Methods: Twenty-seven eyes of 20 patients who had intravitreal dexamethasone implant injections and follow-up for more than 6 months were included in this study. Best corrected visual acuities (BCVA), intraocular pressures (IOP), and central macular thicknesses (CMT) were recorded. Systemic immunomodulatory treatment was noted. Injection-related complications and the need for recurrent injections were recorded. Results: Statistically significant anatomical and functional success was achieved with a single injection. BCVA increased from 0.85 +/- 0.72 to 0.45 +/- 0.52 logMAR, while the mean CMT decreased from 406 +/- 190 to 243 +/- 101 mu m at the sixth month. The peak of visual acuity gain was reached within the first 2 months and a substantial proportion of the patients gained 3 or more lines. There was no complication other than transient IOP elevation in 4 eyes and cataract surgery in 2 eyes. Conclusion: Adjuvant intravitreal dexamethasone implant injections offer promising results in cases of BD with CME. It is effective in preserving the macular anatomy and vision particularly in transition to biological agents.Publication A rare case of recurrence presenting with bilateral exudative retinal detachment in a child with acute lymphoblastic leukemia(Wiley, 2021-08-16) Yalçınbayır, Özgür; Sezgin Evim, Melike; Uçan Gündüz, Gamze; Güler, Salih; Meral Güneş, Adalet; YALÇINBAYIR, ÖZGÜR; SEZGİN EVİM, MELİKE; UÇAN GÜNDÜZ, GAMZE; GÜLER, SALİH; MERAL GÜNEŞ, ADALET; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göz Hastalıkları Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Hematoloji Anabilim Dalı; 0000-0002-7311-5277; 0000-0002-1219-8304; 0000-0002-5458-1686; 0000-0002-4792-269X; 0000-0002-0686-7129; IYJ-9408-2023; AAH-1452-2021; AAH-6661-2021; DWH-8632-2022; EXD-8400-2022Publication Evaluation of choroidal thickness in children with type 1 diabetes: The role of optical coherence tomography in diabetic retinopathy screening(Japanese Soc Pediatric Endocrinology, 2021-01-01) Ermerak, Basak Can; Yalcinbayir, Ozgur; YALÇINBAYIR, ÖZGÜR; Eren, Erdal; EREN, ERDAL; Erseven, Cansu; Sobu, Elif; Yucel, Ahmet Ali; YÜCEL, AHMET ALİ; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Oftalmoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Endokrinoloji Anabilim Dalı.; 0000-0002-7311-5277; 0000-0002-1684-1053; JAC-9459-2023; AAH-6226-2021; IYJ-9408-2023; GSN-9730-2022; AAH-6625-2021The present study aimed to evaluate choroidal changes and alternations within the structure of the retina prior to visible morphologic signs of diabetic retinopathy (DR) in pediatric type 1 diabetes (T1D) cases. Two hundred and six eyes of 103 pediatric patients with T1D without DR and 88 eyes of 44 healthy controls were enrolled. They underwent a comprehensive ophthalmic examination and optical coherence tomography evaluation. Choroidal thickness (ChT) measurements were performed manually on macular and peripapillary regions. There was no significant difference between the two groups in terms of age, intraocular pressure, and axial length (p > 0.05). ChT measurements of subfoveal, nasal, and temporal macula were slightly thinner in the diabetic group, and no statistical significance was found (p = 0.835, p = 0.305, and p = 0.054, respectively). Peripapillary ChT of eight sectors were also thinner in T1D; however, superonasal, nasal, inferonasal, and inferior sector values were significantly different (p = 0.010, p = 0.020, p = 0.019, and p = 0.018, respectively). In conclusion; this study demonstrated evidence of peripapillary choroidal thinning in pediatric diabetic patients without visible signs of retinopathy.Publication Clinical outcomes of posterior segment intraocular foreign bodies: The volume effect(Masson Editeur, 2021-05-12) Gündüz, Gamze Uçan; Yalçınbayir, Özgür; Güllülü, Zeynep Zahide; Özkaya, Gamze; UÇAN GÜNDÜZ, GAMZE; YALÇINBAYIR, ÖZGÜR; GÜLLÜLÜ, ZEYNEP ZAHİDE; ÖZKAYA, Gamze; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göz Hastalıkları Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İstatistik Anabilim Dalı; 0000-0002-7311-5277; 0000-0003-0297-846X; 0000-0002-1219-8304; AAH-6661-2021; IYJ-9408-2023; FAZ-3274-2022; A-4421-2016Purpose. - To assess the effect of foreign body volume on visual and anatomic outcomes in patients with a posterior segment intraocular foreign body (IOFB).Methods. - Patients were divided into three groups according to the volume of the IOFB; group 1 (n = 18 eyes) with IOFBs< 2 mm(3), group 2 (n = 15 eyes) with 2 mm(3) <= IOFBs < 6 mm(3), group 3 (n = 18 eyes) with IOFBs >= 6 mm(3). AU eyes underwent pars plana vitrectomy (PPV) for removal of the IOFB. Demographic characteristics, features of the injury and IOFB, findings of the initial and final ophthalmological examinations, and timing of IOFB removal were studied.Results. - The mean age was 38.8 +/- 12.0 years, and the median follow-up period was 12.0 (range: 6-98) months. Initial visual acuity (VA) was significantly lower in group 3 (P= 0.005), while final VA was similar between the three subgroups. Frequencies of primary globe repair, initial vitreous hemorrhage (VH), corneoscleral entry, and IOFB removal through the cornea were significantly higher in eyes with large volume IOFBs (P<0.05). Siderosis was only seen in 4 patients in group 1 (22.2%). No patients developed postoperative endophthalmitis.Conclusion. - Large volume posterior segment IOFBs are associated with poor initial VA, initial VH and corneoscleral injury. Nevertheless, PPV and IOFB extraction under favorable conditions may provide significant visual improvement in eyes with large volume IOFBs. (C) 2021 Elsevier Masson SAS. All rights reserved.Publication Anti-tumor necrosis factor treatment in the management of pediatric noninfectious uveitis: Infliximab versus adalimumab(Mary Ann Liebert, Inc, 2021-01-28) Uçan Gündüz, Gamze; Yalçınbayır, Özgür; Çekiç, Şükrü; Yiıdız, Meral; Kılıç, Sara Şebnem; UÇAN GÜNDÜZ, GAMZE; YALÇINBAYIR, ÖZGÜR; ÇEKİÇ, ŞÜKRÜ; YILDIZ, MERAL; KILIÇ GÜLTEKİN, SARA ŞEBNEM; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göz Hastalıkları Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Pediatrik Alerji ve Klinik İmmünoloji; 0000-0002-5458-1686; 0000-0002-7311-5277; 0000-0002-9574-1842; 0000-0001-8571-2581; AAH-1885-2021; AAH-6625-2021; AAH-6661-2021; IYJ-9408-2023; AAH-1658-2021; JAC-9459-2023; L-1933-2017Purpose: Management of uveitis displays a particular challenge in childhood. This study aims to compare the efficacy and safety of infliximab (IFX) and adalimumab (ADA) in pediatric noninfectious uveitis that were refractory to conventional immunosuppresives.Methods: This retrospective single-center study included 33 patients who were treated with anti-tumor necrosis factor (TNF) agents (16 with IFX and 17 with ADA). Patients had diverse etiologies, including juvenile idiopathic arthritis, idiopathic uveitis, and Behcet's disease. Demographic characteristics, systemic diagnosis, findings of the ophthalmological examination, control of ocular inflammation, response to treatment, and the rate of clinical remission were studied.Results: Fourteen (87.5%) patients receiving IFX and 10 (58.8%) patients receiving ADA achieved response to treatment during the follow-up (P = 0.118). The agents were discontinued with complete clinical remission in 6 (37.5%) patients receiving IFX and in 2 (11.8%) patients receiving ADA (P = 0.118). Baseline visual acuities and parameters of inflammation improved significantly in both groups after anti-TNF therapy.Conclusion: Both IFX and ADA are safe and effective for pediatric noninfectious uveitis.Publication Herpes zoster ophthalmicus and lateral rectus palsy in an elderly patient(Karger, 2011-01-01) Yalçınbayır, Özgür; Yıldız, Meral; Gündüz, Gamze Ucan; Gelişken, Öner; YALÇINBAYIR, ÖZGÜR; YILDIZ, MERAL; UÇAN GÜNDÜZ, GAMZE; Gelişken, Öner; Uludağ Üniversitesi/Tıp Fakültesi/Göz Hastalıkları Anabilim Dalı.; 0000-0002-7311-5277; 0000-0002-5458-1686; HPH-3842-2023; AAH-6661-2021; KBU-8934-2024; EXE-4887-2022Acquired palsy of the lateral rectus presents with horizontal diplopia and has a broad differential. Herpes zoster ophthalmicus-(HZO) related cranial nerve palsy is a transient and self-limiting condition. Systemic antiviral treatment is administered in order to prevent sight-threatening complications. In suspected cases, zosteriform rash should be questioned. One should keep in mind that acquired esotropia in the elderly may sometimes present following HZO.Publication Infliximab therapy in behcet's uveitis(Masson Editeur, 2022-10-20) Alizadegan, F.; Yalçınbayır, O.; Gündüz, G. Uçan; Pehlivan, Y.; PEHLİVAN, YAVUZ; YALÇINBAYIR, ÖZGÜR; 0000-0002-7311-5277; 0000-0002-5458-1686; IYJ-9408-2023; AAH-6661-2021Purpose. - To evaluate the efficacy of infliximab (IFX) therapy in patients with Behc , et's uveitis (BU) refractory to conventional immunomodulatory treatment (IMT).Materials and methods. - This study, trial registration number TCTR20200806007, included cases of BU with a minimum of 18 months follow-up on IFX treatment. Demographic char-acteristics, ophthalmological examination findings, control of ocular inflammation with IFX, response to treatment and the rate of clinical remission were analyzed in this study.Results. - Sixty-two eyes of 35 patients on IFX therapy were included in the study. The mean follow-up was 49.5 +/- 25.9 months. The mean frequency of recurrences during the IMT was 1.47 +/- 0.78 (attacks/year), decreasing to 0.31 +/- 0.40 (attacks/year) with IFX (P < 0.001). Visual acuity improved significantly in the 1st month of IFX treatment (P = 0.026). Partial response to treatment was achieved in 91.4% of cases.Conclusion. - IFX is a safe and effective treatment in cases of BU refractory to conventional IMT.Publication Different cases, different manifestations of post-covid-19 retinal artery occlusion: A case series(Galenos Publ House, 2023-04-01) Yalçınbayır, Özgür; YALÇINBAYIR, ÖZGÜR; Gündüz, Gamze Uçan; UÇAN GÜNDÜZ, GAMZE; Coşkun, Funda; COŞKUN, NECMİYE FUNDA; Hakyemez, Bahattin; HAKYEMEZ, BAHATTİN; DOĞANAY, SELİM; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Oftalmloloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Pulmoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Radyoloji Anabilim Dalı.; 0000-0002-7311-5277; 0000-0002-5458-1686; 0000-0003-3604-8826; IYJ-9408-2023; AAD-1271-2019; AAH-6225-2021Coronavirus disease 2019 (COVID-19) is a procoagulant disease that increases the risk of clinically evident thrombotic complications. Herein we present 3 cases with different retinal artery occlusions that emerged soon after the diagnosis of COVID-19. The first patient had central retinal artery occlusion (CRAO) that resulted in visual loss in one eye. The second patient had inflammatory peripheral retinal artery occlusion, vasculitis, and uveitis which did not affect vision. The third patient presented with CRAO following the progression from orbital cellulitis to orbital apex syndrome. Interestingly, CRAO progressed to internal carotid artery occlusion in this case within days and resulted in monocular visual loss. Variations in the underlying pathophysiology and the characteristics of individual immune responses in patients with COVID-19 may be factors that determine differences in clinical manifestations. This article aims to describe different presentations of COVID-19-related retinal artery occlusions and discuss possible pathophysiological aspects.