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DOĞANAY, SELİM

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DOĞANAY

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SELİM

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2020 - 20232
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    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; Tıp Fakültesi; Pulmoloji Ana Bilim Dalı; 0000-0002-7311-5277; 0000-0002-5458-1686; 0000-0003-3604-8826; IYJ-9408-2023; AAD-1271-2019; AAH-6225-2021
    Coronavirus 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.
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    Assessment of ganglion cell complex, macular thickness, and optic disc parameters in keratoconus patients
    (Wolters Kluwer Medknow Publications, 2020-10-01) Orman, Gozde; Firat, Penpe Gul; Doganay, Derya; Doganay, Selim; DOĞANAY, SELİM; Tıp Fakültesi; Oftalmoloji Ana Bilim Dalı; AAH-6225-2021
    PURPOSE: Keratoconus (KC) is bilateral noninflammatory corneal disorder characterized by progressive corneal thinning, protrusion, and scarring. The purpose of this study was to evaluate ganglion cell complex(GCC), macula thickness(MT) and optic head disc parameters in keratoconus patients. METHODS: A hospital based prospective clinical case series was performed in Inonu University School of Medicine. 52 eyes of 52 keratoconus patients and 50 eyes of 50 normal patients were enrolled. RESULTS: There is no statistically significant in MT between groups. GCC in nasal superior, temporal superior and temporal inferior 9 mm from macula were found statistically significant decrease in keratoconus group (p<0,05). In optic disc analysis fifth and the eleventh clock-hour quadrants of peripapiller retina nerve fiber layer and cup area ratio were found statistically significant decrease in keratoconic eyes (p<0,05). CONCLUSION: We thought that structural retinal changes seem in keratoconus eyes; keratoconus pathogenesis may affect not only cornea but also retina and optic nerve head.