1. Articles from Semra Koca

    1-6 of 6
    1. Evaluation of early retinal vascular changes by optical coherence tomography angiography in children with type 1 diabetes mellitus without diabetic retinopathy

      Evaluation of early retinal vascular changes by optical coherence tomography angiography in children with type 1 diabetes mellitus without diabetic retinopathy

      Purpose To evaluate macular and peripapillary vascular changes by optical coherence tomography angiography (OCTA) in children with type 1 diabetes mellitus (T1DM) without diabetic retinopathy (DR). Methods This study included 46 patients with T1DM and 46 age-sex matched healthy subjects. All participants were evaluated in terms of macular and optic disk parameters by using AngioVue. Foveal avascular zone (FAZ) area, macular and optic disk vessel density (VD) were analyzed. The correlation of these parameters with metabolic factors such as disease duration, mean hemoglobin A1c (HbA1c), insulin-like growth factor 1 (IGF-1) standard deviation score (SDS), homocysteine (Hcy) level, body mass index ...

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    2. Ganglion cell complex analysis in thalassemia major patients measured by optical coherence tomography

      Ganglion cell complex analysis in thalassemia major patients measured by optical coherence tomography

      To analyze the changes in ganglion cell complex (GCC), peripapillary retinal nerve fiber layer (RNFL) thickness and central macular thickness (CMT) on spectral domain optical coherence tomography (OCT) in patients with thalassemia major. Forty one eyes of 41 patients with thalassemia major and 41 eyes of 41 healthy subjects were included in this prospective and comparative study. Peripapillary RNFL thickness, CMT and macular GCC thickness were evaluated with OCT (Cirrus HD-OCT 5000 Carl Zeiss Meditec, Inc, Dublin, CA, USA) in all patients and healthy controls. Additionally, disease duration, serum ferritin level, hemoglobin concentration, the dosage and duration of chelation therapy ...

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    3. Evaluation of migraine patients with optical coherence tomography angiography

      Evaluation of migraine patients with optical coherence tomography angiography

      Purpose: To compare optical coherence tomography angiography (OCTA) findings in cases with migraine and healthy controls. Methods: Thirty-eight eyes of 19 patients with migraine with aura and 38 eyes of 19 healthy subjects were enrolled in this prospective and comparative study. All patients and healthy controls were evaluated with OCTA (Triton, Topcon®, Tokyo, Japan). Central macular thickness (CMT), optic disc parameters (such as retinal nerve fibre layer [RNFL] thickness and rim and disc areas), foveal avascular zone (FAZ) and parafoveal superficial vessel density (VD) measurements were analysed. Results: The optic disc rim area was significantly larger in the migraine group ...

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    4. Evaluation of amblyopic eyes with optical coherence tomography angiography and electrophysiological tests

      Evaluation of amblyopic eyes with optical coherence tomography angiography and electrophysiological tests

      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 foveal 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 ...

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    5. Comparison of Optical Coherence Tomography Angiography Findings in Patients with Behçet’s Disease and Healthy Controls

      Comparison of Optical Coherence Tomography Angiography Findings in Patients with Behçet’s Disease and Healthy Controls

      Purpose : To investigate optical coherence tomography angiography (OCTA) findings in patients with Behçet’s disease (BD). Methods : Ninety-four eyes of 49 patients with BD and 53 eyes of 53 healthy subjects were included. Vascular density (VD), foveal avascular zone (FAZ) area, perifoveal capillary hypoperfusion, perifoveal capillary network disorganization, and FAZ irregularity were analyzed. Results : OCTA revealed retinal VD reduction and higher perifoveal capillary hypoperfusion, perifoveal capillary network disorganization and FAZ irregularity in ocular Behçet’s compared to nonocular Behçet’s ( p = .000). However, compared to normal eyes, there was no difference between any OCTA measurements in nonocular ...

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    6. Optic Nerve Parameters in Obese Children as Measured by Spectral Domain Optical Coherence Tomography

      Optic Nerve Parameters in Obese Children as Measured by Spectral Domain Optical Coherence Tomography

      Purpose : To investigate whether an association exists between obesity and optic nerve parameters. Methods : This was a prospective comparative study including 125 eyes of 63 obese and 122 eyes of 62 healthy pediatric subjects. Optic nerve measurements were performed using the Cirrus spectral domain optical coherence tomograph (SD-OCT). Results : The disc area, cup volume, mean and vertical C/D ratio, inferior and temporal RNFL thickness values were significantly higher in the control group than the obese group; however, age, sex, mean, superior and nasal RNFL thickness and rim area measurements were not statistically significantly different between the two groups. Age ...

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    1-6 of 6
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    Optic Nerve Parameters in Obese Children as Measured by Spectral Domain Optical Coherence Tomography Comparison of Optical Coherence Tomography Angiography Findings in Patients with Behçet’s Disease and Healthy Controls Evaluation of amblyopic eyes with optical coherence tomography angiography and electrophysiological tests Evaluation of migraine patients with optical coherence tomography angiography Ganglion cell complex analysis in thalassemia major patients measured by optical coherence tomography Evaluation of early retinal vascular changes by optical coherence tomography angiography in children with type 1 diabetes mellitus without diabetic retinopathy Quantification of biomechanical properties of human corneal scar using acoustic radiation force optical coherence elastography Longitudinal changes in complete avascular area assessed using anterior segmental optical coherence tomography angiography in filtering trabeculectomy bleb Quantitative Analysis of Radial Peripapillary Capillary Network in Patients With Papilledema Compared with Healthy Subjects Using Optical Coherence Tomography Angiography Reproducibility of Retinal Nerve Fiber Layer and Macular Thickness Measurements Using Spectral Domain Optical Coherence Tomography Analysis of Parainflammation in Chronic Glaucoma Using Vitreous-OCT Imaging Impact of Epiretinal Membrane on Optical Coherence Tomography Tools Used for Monitoring Glaucoma