Browsing by Author "Erdem, Seyfettin"
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Autonomic dysfunction detection by an automatic pupillometer as a non‑invasive test in patients recovered from COVID‑19
Karahan, Mine; Demirtaş, Atılım Armağan; Hazar, Leyla; Erdem, Seyfettin; Ava, Sedat; Dursun, Mehmet Emin; Keklikçi, Uğur (Springer, 2021)Purpose To recognize dysfunctions in the autonomic nervous system (ANS) with changes in dynamic and static pupillary responses in patients who recovered from coronavirus disease-2019 (COVID-19) Methods One month after ... -
Bilateral central retinal artery occlusion secondary to SARS-CoV-2 infection in the early and late periods: A case report
Karahan, Mine; Erdem, Seyfettin; Hazar, Leyla; Dursun, Mehmet Emin; Ava, Sedat; Emek, Hüseyin; Keklikçi, Uğur (Georg Thieme Verlag KG, 2021)The causative agent of coronavirus disease (COVID-19) is a new virus termed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from the coronavirus family. It was first detected in China in December 2019 and ... -
Can dynamic and static pupillary responses be used as an indicator of autonomic dysfunction in patients with obstructive sleep apnea syndrome?
Erdem, Seyfettin; Yılmaz, Süreyya; Karahan, Mine; Dursun, Mehmet Emin; Ava, Sedat; Alakuş, Mehmet Fuat; Keklikçi, Uğur (Springer, 2021)Purpose We aimed to reveal whether static and dynamic pupillary responses can be used for the detection of autonomic nervous system (ANS) dysfunction in patients with obstructive sleep apnea syndrome (OSAS). Methods We ... -
Crystalline gene mutations in Turkish children with congenital cataracts
Karahan, Mine; Demirtaş, Atılım Armağan; Erdem, Seyfettin; Ava, Sedat; Tekeş, Selahattin; Keklikçi, Uğur (Springer, 2021)Purpose To detect crystallin gene mutations in Turkish children with congenital cataracts. Methods The present study included 56 children (38 males and 18 females) who were diagnosed with congenital cataract in our ... -
Diurnal changes in accommodation amplitude and anterior segment parameters during ramadan fasting
Demirtaş, Atılım Armağan; Karahan, Mine; Erdem, Seyfettin (Harran Üniversitesi Tıp Fakültesi, 2021)Background: The purpose of this research was to investigate the diurnal effect of Ramadan fasting on the amplitude of accommodation and anterior segment parameters in visually healthy participants. Materials and Methods: ... -
Effect of fasting on diurnal fluctuation of parafoveal and peripapillary vessel density and related oculodynamic and haemodynamic parameters
Demirtaş, Atılım Armağan; Karahan, Mine; Erdem, Seyfettin; Han, Çağla Çilem; Keklikçi, Uğur (Elsevier, 2021)Purpose: To investigate the effects of Ramadan fasting on diurnal superficial-deep parafoveal vessel density (pfVD) and nerve head (NH)-radial peripapillary capillary (RPC) peripapillary vessel density (ppVD) using optical ... -
Evaluation of anterior segment parameters with Pentacam in children with poorly-controlled type 1 Diabetes Mellitus without diabetic retinopathy
Karahan, Mine; Demirtaş, Atılım Armağan; Erdem, Seyfettin; Ava, Sedat; Dursun, Mehmet Emin; Beştaş, Aslı; Haspolat, Yusuf Kenan; Keklikçi, Uğur (Elsevier, 2021)urpose: To determine the effect of abnormal glucose metabolism on the cornea, lens, anterior chamber volume (ACV), and anterior chamber depth (ACD) in children with poorly-controlled type 1 diabetes mellitus (DM) without ... -
Evaluation of blood inflammatory parameters of infants with premature retinopathy treated with intravitreal anti vascular endothelial growth factor
Ava, Sedat; Hazar, Leyla; Karahan, Mine; Erdem, Seyfettin; Dursun, Mehmet Emin; Keklikçi, Uğur (Gazi Göz Vakfı, 2022)Purpose: This study compared the blood inflammatory parameters between early preterm infants with retinopathy of prematurity (ROP) who were treated with intravitreal anti-vascular endothelial growth factor (VEGF)) and those ... -
Evaluation of ocular hypoperfusion in patients with acromegaly by using optical coherence tomography angiography
Karahan, Mine; Demirtaş, Atılım Armağan; Erdem, Seyfettin; Ava, Sedat; Pekkolay, Zafer; Keklikçi, Uğur (Taylor & Francis, 2021)Purpose: This study aimed to evaluate the retinal blood vessel parameters and the foveal avascular zone (FAZ) area using optical coherence tomography angiography (OCTA) in patients with acromegaly in comparison with healthy ... -
Evaluation of the effect of obstructive sleep apnea syndrome on retinal microvascularity by optical coherence tomography angiography
Ava, Sedat; Erdem, Seyfettin; Karahan, Mine; Dursun, Mehmet Emin; Hazar, Leyla; Şen, Hadice Selimoğlu; Keklikçi, Uğur (Elsevier, 2022)Purpose: Using optical coherence tomography angiography (OCTA), we sought to determine whether there are retinal microvascular changes in patients with obstructive sleep apnea syndrome (OSAS). Method: The study included ... -
Examination of the effects of COVID 19 on corneal endothelium
Erdem, Seyfettin; Karahan, Mine; Ava, Sedat; Dursun, Mehmet Emin; Hazar, Leyla; Keklikçi, Uğur (Springer, 2021)Purpose To demonstrate the efects of the disease on the corneal endothelium in individuals recovering from COVID-19 through specular microscopy. Methods Eighty individuals recovering from COVID-19 (group 1) and 72 healthy ... -
Genetic analysis of patients with primary congenital glaucoma
Ava, Sedat; Demirtaş, Atılım Armağan; Karahan, Mine; Erdem, Seyfettin; Oral, Diclehan; Keklikçi, Uğur (Springer, 2021)Purpose To determine the common gene mutation in patients with primary congenital glaucoma (PCG) in the Southeast region of Turkey via genetic analysis and to evaluate whether there were other gene mutations in these ... -
İskemik koroner arter hastalığı olan hastalarda retinal mikrovasküler değişiklikler
Polat, Ferhat Baver (Dicle Üniversitesi, Tıp Fakültesi, 2023)Bu çalışmada koroner arter hastalığı (KAH) nedeniyle koroner anjiografi yapılan koroner damarlarında tıkanıklık tespit edilen hastaların optik kohorens tomografi anjiografi (OKTA) kullanılarak retinal mikrovasvasküler ... -
Long-term effects of trabeculectomy in primary open-angle glaucoma on segmented macular ganglion cell complex alterations
Demirtaş, Atılım Armağan; Karahan, Mine; Erdem, Seyfettin; Kaya, Adar Aslan; Keklikçi, Uğur (Springer, 2021)Purpose The aim of this study is to compare, using optical coherence tomography (OCT), the changes in the thickness of the macular nerve fiber layer (mNFL), macular ganglion cell layer (mGCL), macular inner plexiform layer ... -
Maküla damar yoğunluğunun ve foveal avasküler zon genişliğinin miyopi şiddeti ile ilişkisi
Ava, Sedat; Hazar, Leyla; Karahan, Mine; Erdem, Seyfettin; Dursun, Mehmet Emin; Keklikçi, Uğur (Medical Network, 2022)Amaç: Miyopi şiddetinin maküla damar yoğunluğuna, foveal avasküler zon genişliğine ve foveal avasküler zondaki foveal damar yoğunluğuna etkisini optik koherans tomografi anjiyografi ile değerlendirmektir. Gereç ve Yöntem: ... -
Multi-diod lazer ile endokanaliküler lazer dakriyosistorinostomi sonuçlarimiz
Erdem, Seyfettin (2016)Endokanaliküler lazer DSR ‘de multi-diod lazer kullanarak etkinliği ve klinik sonuçları değerlendirmeyi amaçladık. Nazolakrimal kanal tıkanıklığı nedeni ile epifora öyküsü olan 28 hastanın 29 gözü multi-diod lazer ile ... -
Primer açık açılı glokom tanı ve takibinde bilgisayarlı görme alanı ile optikal koherens tomografinin karşılaştırılması
Dursun, Birgül; Keklikçi, Selahattin Uğur; Dursun, Mehmet Emin; Yıldırım, Mine; Erdem, Seyfettin (Dicle Üniversitesi Tıp Fakültesi, 2016)Objective: To evaluate the relationship between visual field indices and optical coherence tomography measurements in primary open-angle glaucoma (POAG) patients and to investigate the role of early detection of glaucomatous ... -
Quantitative evaluation of pupil responses in patients with prolactinomas being treated with dopamine agonists
Ava, Sedat; Hazar, Leyla; Karahan, Mine; Erdem, Seyfettin; Dursun, Mehmet Emin; Pekkolay, Zafer; Keklikçi, Uğur (Taylor & Francis, 2022)The aim of this study was to determine whether the dopamine agonist (DA) drug cabergoline used in the treatment of prolactinoma causes autonomic dysfunction by measuring static and dynamic pupillary responses. The study ... -
Retinal microvascular changes in patients with multiple myeloma: A study based on optical coherence tomography angiography
Dursun, Mehmet Emin; Erdem, Seyfettin; Karahan, Mine; Ava, Sedat; Hazar, Leyla; Dursun, Birgül; Karakaş, Abdullah; Demircan, Vehbi; Keklikçi, Uğur (Taylor & Francis, 2022)Purpose: Ocular microvascular networks and variables were analyzed using optical coherence tomography angiography (OCTA) in patients with multiple myeloma (MM) who had no pathological findings in their routine ophthalmologic ... -
Retinal vasculitis case developing in the early period after COVID-19
Erdem, Seyfettin; Karahan, Mine; Dursun, Mehmet Emin; Ava, Sedat; Hazar, Leyla; Katran, İbrahim; Keklikçi, Uğur (Georg Thieme Verlag KG, 2021)Coronavirus disease (COVID-19) is a new disease that can potentially be fatal and affect the lungs and airways. The virus is thought to be most likely transmitted by an interspecies jump from bats to intermediate hosts and ...
