Relationship between diabetic macular edema and choroidal layer thickness

Purpose To investigate the relationship between diabetic macular edema (DME) and the choroidal layer thickness in diabetic patients. Methods This is a retrospective observation study. Three hundred eighteen eyes of 159 diabetes mellitus (DM) patients and age-matched 100 eyes of 79 healthy controls were enrolled. DME was defined as over 300 μm in the central retinal subfield of the Early Treatment Diabetic Retinopathy Study (ETDRS) grid sector....