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[Quantification of the foveolar zone in normal and diabetic patients].

The AA studied the foveolar avascular zone (FAZ) in diabetic patients using digital image processing (512 x 521) and comparing different methods of measurements. The results obtained from eighteen diabetic patients and twelve healthy nondiabetic controls were compared. Each patient was submitted to fluorescein angiography. The foveal avascular zone was quantified both, digitalized or by manual procedure. The different methods of analysis are compared and the results presented.