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ÖZDEMİR, MEHMET HAKAN

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MEHMET HAKAN
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ÖZDEMİR
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    PublicationOpen Access
    Diffuse Retinal Thickening due to Epiretinal Membrane in a Patient with Idiopathic Parafoveal Telangiectasia
    (2019-01-01T00:00:00Z) HAMZAYEV, IGBAL; ELBAY, AHMET; EKİNCİ, CANSU; Ozdemir, Hakan; HAMZAYEV, IGBAL; ELBAY, AHMET; EKİNCİ, CANSU; ÖZDEMİR, MEHMET HAKAN
    Idiopathic parafoveal telangiectasia (IPT) is characterized by abnormal dilated or ectatic retinal capillaries with exudation. In many studies macular hole or pseudohole was demonstrated in patients with IPT. However, only one case with the coexistence of IPT and epiretinal membrane (ERNI) formation was reported before. In this study, we presented the retinal alterations of a patient with IPT admitted to our clinic with complaint of blurred vision for two months. A hyperreflective band refers to ERM, diffuse thickening and increased reflectance of inner retinal layers and cystic spaces in the inner nuclear layer of the retina were detected in horizontal optic coherence tomography (OCT) images of left eye. Due to the thickening of the inner retinal layers, foveal depression was lost. There was no full-thickness or partial-thickness retinal tissue defect in any OCT scan.
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    PublicationOpen Access
    Autologous Platelet-Rich Fibrin in the Treatment of Refractory Macular Holes
    (2019-11-06T00:00:00Z) Koytak, Arif; NUHOĞLU, FADİME; BAYRAKTAR, HAVVANUR; Ercan, Rukiye; Ozdemir, Hakan; KOYTAK, İBRAHİM ARİF; NUHOĞLU, FADİME; BAYRAKTAR, HAVVANUR; ERCAN, RUKIYE; ÖZDEMİR, MEHMET HAKAN
    Purpose. To describe a novel method for the treatment of refractory macular holes. Methods. Two case reports on the use of autologous platelet rich fibrin (PRF), followed by sulfur hexafluoride gas tamponade to facilitate closure of refractory macular holes. Results. Macular holes were succesfully closed within a week in both cases. Best corrected Snellen visual acuities improved from counting fingers to 0.16 in the first case, and from 0.05 to 0.2 in the second case. No complication occurred during or a er the procedures. Conclusion. e use of autologous PRF seems to be a safe and effective alternative method for the treatment of refractory macular holes. Further experience and studies are required to assess the value of autologous PRF in the management of challenging macular hole cases of different etiologies. To the best of our knowledge, this is the first use of autologous PRF in the treatment of macular holes.
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    PublicationOpen Access
    Cilioretinal artery occlusion with paracentral acute middle maculopathy associated with COVID-19
    (2021-07-01T00:00:00Z) Bayram, Nurettin; Ozdemir, Hakan; Ozsaygili, Cemal; ÖZDEMİR, MEHMET HAKAN
    The purpose of the study is to describe cilioretinal artery (CILRA) occlusion that is presumed to be associated with COVID-19 without severe respiratory distress and inform ophthalmologists of unusual ocular presentations of COVID-19. Here, we present the first case of a patient with isolated CILRA occlusion and paracentral acute middle maculopathy (PAMM) after recently polymerase chain reaction-proven COVID-19. A 26-year-old female patient presented with a visual field defect in her left eye for 2 days and decreased vision compared to her right eye. It was learned that the patient had a laboratory-proven COVID-19 infection with mild respiratory symptoms that did not require hospitalization 2 weeks ago. Fundus examination revealed retinal edema in the left eye area supplied by the CILRA. Spectral-domain optical coherence tomography revealed a prominent hyperreflective band at the inner nuclear layer level. These findings led us to the diagnosis of isolated CILRA occlusion and PAMM associated with recent COVID-19. CILRA occlusion and PAMM could be associated with the inflammatory and procoagulant condition caused by the SARS-CoV-2 infection.