Mahmoud M. Soliman, MD, Noha Khater, MD, FRCSEd, MRCOphth., Tamer A. Macky, MD, FRCSEd, Naglaa H. Ali, M.Sc Purpose: To compare visual field changes obtained by Frequency Doubling Perimetry (FDP) to those obtained by Standard Automated Perimetry (SAP) in diabetic patients. Setting: Department of Ophthalmology, Cairo University Hospitals, Cairo, Egypt. Methods: Twenty diabetic patients with no clinically visible diabetic retinal changes had...

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