Functional assessment of early retinal changes in diabetic patients without clinical retinopathy using multifocal electroretinogram
نویسندگان
چکیده
منابع مشابه
Retinal changes in diabetic patients without diabetic retinopathy
Purpose The purpose of this study was to measure retinal vessel caliber and to examine early changes in macular thickness using optical coherence tomography (OCT). We evaluated to what extend vascular caliber and macular thickness differed between patients with type 2 diabetes mellitus without diabetic retinopathy compared with healthy individuals. Methods 26 diabetic patients without diabeti...
متن کاملMultifocal electroretinogram delays reveal local retinal dysfunction in early diabetic retinopathy.
PURPOSE To identify local retinal abnormalities in diabetic patients with and without retinopathy, by using the multifocal electroretinogram (M-ERG). METHODS Electroretinograms were recorded at 103 discrete retinal locations in each eye of eight persons with nonproliferative diabetic retinopathy (NPDR) and eight diabetic persons without retinopathy, using VERIS (EDI, San Mateo, CA). The ampli...
متن کاملMapping of retinal function in diabetic retinopathy using the multifocal electroretinogram.
PURPOSE To investigate focal abnormalities in the electroretinogram (ERG) signal in diabetic patients, with and without retinopathy, using a multifocal ERG. METHODS Sixteen patients with diabetes mellitus, 8 of whom had diabetic retinopathy (mean duration of diabetes: 18.5 years) and 19 approximately age-matched healthy volunteers underwent multifocal ERG testing. One hundred three retinal lo...
متن کاملEffect of short-term hyperglycemia on multifocal electroretinogram in diabetic patients without retinopathy.
PURPOSE To investigate the effect of variations in blood glucose level on the multifocal electroretinogram (mfERG) in patients with type 1 diabetes without retinopathy. METHODS Fourteen patients were clamped sequentially and in random order at 5 and 15 mM blood glucose for 75 minutes on the same day. MfERG was recorded in one eye at each level of blood glucose level. RESULTS Compared to eug...
متن کاملEarly Detection of Diabetic Retinopathy in Fluorescent Angiography Retinal Images Using Image Processing Methods
Introduction: Diabetic retinopathy (DR) is the single largest cause of sight loss and blindness in the working age population of Western countries; it is the most common cause of blindness in adults between 20 and 60 years of age. Early diagnosis of DR is critical for preventing vision loss so early detection of microaneurysms (MAs) as the first signs of DR is important. This paper addresses th...
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ژورنال
عنوان ژورنال: BMC Ophthalmology
سال: 2020
ISSN: 1471-2415
DOI: 10.1186/s12886-020-01677-6