Person:
SEZER, TAHA

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Now showing 1 - 4 of 4
  • PublicationMetadata only
    Oxidant-Antioxidant Balance in the Aqueous Humor of Patients with Retinal Vein Occlusion.
    (2018-01-01) Altinisik, M; Koytak, A; ELBAY, AHMET; TOKLU, E; SEZER, TAHA; KOCYIGIT, ABDÜRRAHİM; KOYTAK, İBRAHİM ARİF; ELBAY, AHMET; SEZER, TAHA; KOÇYİĞİT, ABDÜRRAHİM
  • PublicationOpen Access
    The choroid and optical coherence tomography
    (2016-01-01) ÖZDEMİR, MEHMET HAKAN; Altinisik, M; SEZER, TAHA; KOYTAK, İBRAHİM ARİF; SEZER, TAHA; KOYTAK, İBRAHİM ARİF; ÖZDEMİR, MEHMET HAKAN
    The choroid is the most vascular tissue in the eye and it plays an important role in the pathophysiology of various common chorioretinal diseases such as central serous retinopathy, age-related macular degeneration and degenerative myopia. Quantitative assessment of the choroid has been quite challenging with traditional imaging modalities such as indocyanine green angiography and ultrasonography due to limited resolution and repeatability. With the advent of optical coherence tomography (OCT) technology, detailed visualization of the choroid in vivo is now possible. Measurements of choroidal thickness have also enabled new directions in research to study normal and pathological processes within the choroid. The aim of the present study is to review the current literature on choroidal imaging using OCT.
  • PublicationMetadata only
    A novel tool reflecting the role of oxidative stress in the cataracts: thiol/disulfide homeostasis
    (2017-01-01) Elbay, AHMET; Ozer, Omer Faruk; ALTINISIK, Muhammed; ELBAY, Arif Emre; Sezer, TAHA; Bayraktar, HAVVANUR; OZDEMIR, Hakan; ELBAY, AHMET; ÖZER, ÖMER FARUK; SEZER, TAHA; BAYRAKTAR, HAVVANUR; ÖZDEMİR, MEHMET HAKAN
    We investigated serum and aqueous humor thiol/disulfide (T-D) homeostasis in patients with cataracts versus healthy controls. In total, 56 patients with cataracts and 49 healthy controls were enrolled in this case-control study. Serum total thiol (TT), native thiol (NT), and disulfide (DS) concentrations were determined using a novel automated measurement method. Additionally, DS/TT, DS/NT and NT/TT percentage ratios were compared between the groups. In comparison with the control group, serum NT levels and aqueous humor TT and NT levels were significantly lower (p<.05, p<.05 and p<.001, respectively), whereas serum and aqueous humor DS levels were significantly higher in cataract patients (p<.01 and p<.001). DS/TT and DS/NT ratios were significantly higher and the NT/TT ratio was lower in cataract patients in serum (p<.005) and aqueous humor samples (p<.001). In conclusion, serum T-D homeostasis may be useful as biochemical markers, indicating the role of oxidative stress in the development of cataracts. Further studies are needed to confirm the pathophysiological role of T-D homeostasis in cataractogenesis.
  • PublicationOpen Access
    Angioid streaks in a case of Camurati-Engelmann disease.
    (2017-07-01) ÖZDEMIR, HÜSEYİN; Tugcu, BETÜL; SEZER, TAHA; ELBAY, AHMET; TUĞCU, BETÜL; SEZER, TAHA; ELBAY, AHMET; ÖZDEMİR, MEHMET HAKAN