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To evaluate the sensitivity and specificity of one- and three-field, nonmydriatic and mydriatic, and 45° digital colour photography compared with mydriatic indirect ophthalmoscopy for diabetic retinopathy (DR) screening.A group of 79 patients (158 eyes) were included in this prospective study. Colour fundus photographs were taken with a Topcon TRC-NW6S digital camera, using four different techniques—single-field...
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