Visual Field in Diabetic Retinopathy (DR)
By examination with the automated perimetry system OCTOPUS in Diabetic Retinopathy (DR) characteristic changes in the visual field show up in form of flecked, partially confluent relative scotomas. They can be correlated to areas of capillary non-perfusion. The average decrease of light sensitivity in the different stages of DR was ascertained. It ranges between 1.4dB in the stage I and 6.7dB in the stage IV. It is remarkable, that even in beginning DR the loss of retinal function is greater in the middle periphery than in the central area. This becomes more distinct in advanced stages of DR and especially in the proliferative form.
KeywordsRetina Fluorescein Scotoma
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