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PURPOSE To assess the structural and functional status of patients with multiple sclerosis (MS) without a history of optic neuritis. METHODS Thirty-nine patients with MS who had reported no visual symptoms before and after the time of MS diagnosis were included. Thirty-eight healthy subjects were included as a control group. Retinal nerve fiber layer(More)
PURPOSE To assess choroidal thickness changes in young adults with systemic arterial hypertension. METHODS This prospective study comprised 80 hypertensive patients and 80 healthy control subjects. Choroidal thickness was measured with spectral-domain optical coherence tomography (SD-OCT) (RS-3000, Nidek). Choroidal thickness was obtained at the subfovea,(More)
OBJECTIVE To assess the thickness of the retinal nerve fibril layer (RNFL) in cases with ankylosing spondylitis (AS). MATERIALS AND METHODS The study included 40 AS patients who had no history of acute and/or previous uveitis and 50 healthy controls. After detailed ocular examination, the thickness of the peripapillary RNFL, the macula, and the ganglion(More)
AIM To investigate the effect of pseudophakia on visual electrophysiology. METHODS Right eyes of 60 pseudophakic (study group) age- and sex-matched 60 phakic (control group) volunteers were included. Subjects without any ocular and systemic disease, who had visual acuity of more than 9/10 underwent full-field electroretinogram (ERG), pattern(More)
BACKGROUND Optic pathway involvement in multiple sclerosis is frequently the initial sign in the disease process. In most clinical applications, pattern visual evoked potential (PVEP) is used in the assessment of optic pathway involvement. OBJECTIVE To question the value of PVEP against color vision assessment in the diagnosis of subclinical optic pathway(More)
PURPOSE The aim of this study was to evaluate choroidal thickness changes during acute attacks of familial Mediterranean fever (FMF). METHODS Fifty patients with FMF and 50 healthy controls were included. Choroidal thickness of each participant was measured at the foveola and horizontal nasal and temporal quadrants at 500-µm intervals to 1,500 µm from the(More)
In this study, acute effects of cigarette smoking on the pattern electroretinogram (PERG) were investigated. First, variability of the PERG was studied in a group of young male smokers (26 right eyes of 26 subjects). Then PERGs were investigated in a group of habitual smokers (17 right eyes of 17 subjects) in separate real smoking and sham smoking sessions.(More)
The aim of this study was to investigate the intra-sessional and inter-sessional variability of the multifocal electroretinogram (mfERG). Right eyes of 20 healthy adult subjects with uncorrected visual acuity of 1.0 were studied. mfERG recordings were obtained in two sessions by using jet corneal electrodes. The responses were averaged over five retinal(More)