Changes in Frequency-Doubling Perimetry in Patients with Type I Diabetes prior to Retinopathy

<table>Fundus photographs (one centered on the fovea and the other in the optic disc) and FDT outcome of the same patient with type I diabetes and minor retinovascular changes.</table>

BioMed Research International

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Figure 1

Figure 1: Changes in Frequency-Doubling Perimetry in Patients with Type I Diabetes prior to Retinopathy 