"iDoctor – Medical Blog"

Purpose: To assess the relationship between visual acuity (VA) and diabetic macular oedema (DMO) in relation to the location of retinal thickening and the severity and duration of central macular thickening.Methods: Data from 584 eyes in 340 placebo-treated patients in the 3-years-long Protein Kinase C Diabetic Retinopathy Study (PKC-DRS2) trial were used to investigate the relationship between VA and DMO. Eligible eyes had moderately severe to very severe non-proliferative diabetic retinopathy and VA of at least 45 letters on Early Treatment Diabetic Retinopathy Study (ETDRS) charts (Snellen equivalent = 20/125). Diabetic retinopathy and DMO status were assessed using stereo photographs.Results: Nearly one third of study eyes had foveal centre-involving DMO at the start of the trial. Sustained moderate visual loss was found in 36 eyes,

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