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Now showing 1 - 4 of 4
  • PublicationOpen Access
    Evaluation of amblyopic eyes with optical coherence tomography angiography and electrophysiological tests
    (2021-01-01T00:00:00Z) Hamurcu, Mualla; EKİNCİ, CANSU; Koca, Semra; TUĞCU, Betül; EKİNCİ, CANSU; TUĞCU, BETÜL
    Purpose: To investigate the structural and functional changes of the retina and optic nerve in amblyopia. Methods: Eighteen patients with unilateral anisometropic amblyopia and 27 age-matched healthy controls were involved in this study. All patients underwent optical coherence tomography angiography (OCTA), pattern visual evoked potential (pVEP), and flash electroretinogram (fERG). Results: There was no statistically significant difference in terms of the fovea] avascular zone (FAZ), perifoveal superficial density, whole superficial density, parafoveal deep density, perifoveal deep density among the eyes (P > 0 0.05). Significant differences were found only in superficial capillary plexus (SCP) vessel density in whole (P = 0.029) and parafoveal (P = 0.008) image. In electrophysiological tests, while VEP latencies of the amblyopic eyes increased compared to nonamblyopic eyes and controls (P = 0.027), VEP amplitudes decreased in amblyopic and nonamblyopic eyes compared to controls (P = 0.01), amplitudes of the rod (P = 0.027) and cones (P < 0.001) also decreased in amblyopic eyes compared to nonamblyopic and healthy eyes. When we assessed the correlation between the parameters of OCTA and electrophysiological test, only a significant correlation was found between parafoveal SCP vessel density and VEP amplitudes (r = 0.341). Conclusion: We found a significant decrease only in SCP vessel density of the OCTA parameters in amblyopic eyes compared to healthy eyes. We detected a significant relationship between parafoveal SCP vessel density and VEP parameters, which might be associated with the underlying pathophysiology of the amblyopia.
  • PublicationOpen Access
    Diffuse Retinal Thickening due to Epiretinal Membrane in a Patient with Idiopathic Parafoveal Telangiectasia
    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.
  • PublicationOpen Access
    Extramacular Retinal Hole Following Intravitreal Dexamethasone Implant: Case Report
    (2019-06-27T00:00:00Z) Ekinci, C; Kayıran, A; Özdemir, H; EKİNCİ, CANSU; ÖZDEMİR, MEHMET HAKAN
    The intravitreal dexamethasone implant Ozurdex is indicated for the treatment of macular edema due to diabetes and branch retinal vein occlusion. While the most common ocular side effects are elevated intraocular pressure and cataract formation, rare complications related to the injection have been reported. We present a case with extramacular retinal hole after Ozurdex injection.
  • PublicationOpen Access
    Coronavirus (COVID-19) and its Relationship with Ocular Surface
    An outbreak in China-s Wuhan city in December 2019, characterized by unidentified pneumonia, leading to severe acute respiratory distress syndrome has begun. The cause of the outbreak has been detected as Severe acute respiratory syndrome-related coronavirus-2 (SARS-CoV-2), which is a new coronavirus and due to its rapid spread in a short time, it has been announced as a pandemic in terms of public health by the World Health Organization. The virus is transmitted mainly by direct contact with the secretions of patients and inhalation of virus-containing micro-droplets. The transmission of the virus via the ocular route is a controversial issue and there arc limited number of studies in the literature. Follicular conjunctivitis may he one of the ocular manifestations of the disease and even if there is no concomitant conjunctivitis, it is very important for the ophthalmologists and healthcare professionals to take preventive measures. In this review, the relationship of SARS-CoV-2 with ocular surface findings was evaluated in the light of the literature.